FINAL V-Belt Manual 1-29 - fordatachina.com Technical manual.pdf · DIN 2215, ISO 4183, ISO4184 Application: General industrial Drives & V-flat drives. Length Designation: Li in inches

CONTENTS

Belt Profile Index 1-3

Cross Sectional View 4

Product Range 5-7

Classical V-Belts 8-12

Wedge V-Belts 13-17

Narrow V-Belts 18-20

Hexagonal Belts 21-22

Banded Belts 23 - 28

Cut Edge Cogged Belts 29 - 32

Cut Edge Plain Belts 33

Special Construction 34 - 36

Free-Set Concept 37

Drive Design Procedure 38

Drive Design Example (Classical) 39

Drive Design Example (Wedge) 40

Drive Design Example (Cut Edge Cogged) 41

Service Factors for Belt drives 42

Belt Section Selection Chart 43 - 45

Recommended Standard Pulley Diameters 46 - 47

Power Rating Charts 48 - 83

Power Correction Factors 84

Idlers 85 - 86

V-Flat Drives 87

Dimensions of Standard V-Grooved Pulley 88

Service Equipments, Installation 89 - 90

Maintenance & Storage 91

Do's & Dont's 92 - 93

Service Guide 94 - 95

Cross Sectional View, Features 96

Product Range 97

Drive Design Procedure 98

Drive Design Example 99

Service Factor, Cross Section Selection Chart 100

Pulley Groove Dimensions 101

Pulley Diameters 102 - 103

Power Rating & Correction Factors 104 - 111

Installation & Maintenance 112

Idlers 113

Trouble Shooting 114

Conversion Constants 115

Notes 116

Questionnaire 117

V-BELTS & CUT EDGE BELTS

RIBBED BELTS

BELT TYPE BELT PROFILE DESCRIPTION PAGE NO.

CLASSICALSECTION WRAPPEDV-BELTS

WEDGE SECTIONWRAPPEDV-BELTS

HIGHCAPACITY NARRIOW WRAPPEDV-BELTS

HEXAGONALWRAPPEDBELTS

VARI SPEEDWRAPPED V-BELTS

LIGHT DUTYV-BELTS

Section: Z,A,B,C,D,20,25,EStandard: IS 2494, BS 3790 & DIN 2215, ISO 4183, ISO4184Application: General industrial Drives & V-flat drives.Length Designation: Li in inches

Section: SPZ,SPA,SPB,19,SPCStandard: BS 3790Application: General Engineering &Industrial DrivesLength Designation: Lp in mm

Section: 3V, 5V, 8VStandard: RMA IP-22Application: General Engineering &Industrial DrivesLength Designation: Belt No./10 = La in inches

Section: AA, BB, CC, 25X22Standard: IS 11038, RMA IP-21, ISO 5289Application: Industrial & Agricultural Drives, Drives with multiple pullies & Rice Mills Length Designation: Li in inches

Section: VARISPEEDStandard: RMA IP-25, ISO 3410, BS 3733Application: Agricultural & Industrial Drives. Speed changing drives- Machine tools, Harvester Combine, textile & Printing machines etc.

Section: 3L,4L,5LStandard: RMA IP-23Application: Lawn & Garden Applications, Household Appl. etc.Length Designation: Belt No./10 = La in inches

1

08

13

18

21

07

35


2

BANDED WRAPPEDBELTS

PROFILE TOP BELTS

FRAS BELTS(Fire Resistant and Antistatic)

AOH V-BLETS(Antistatic Oil & heat Resistant)

BELTS WITHKEVLAR CORD

CUT EDGECLASSICALSECTIONV-BELTS

Section: ZX,AX,BX,CXStandard: IS 2494, ISO 4183, ISO 4184, BS-3790Application: Drives with very small pulley diametres, high temperatures, high speed & high level of power transmission.Length Designation: Li in inches

Section: Entire rangeStandard: As per sectionApplication: Drives with high levels of power transmission, Drives having minimum installation & take up allowancesLength Designation: As per section

Section: Classical,Wedge & NarrowStandard: BS-3790Application: Drives working upto temperature 100°C & drives with oily environment.Length Designation: As per section

Section: PT-0, PT-HC, 2TP, PT-6, PT-7Standard: PIXApplication: Conveyor systems, Special applications. Example: Food grain industries, ceramic tile industries, Horticultural industries.Length Designation: As per section

Section: HA, HB, HC, HD, HE, HSPZ, HSPA, HSPB, HSPC, H3V, H5V, H8VStandard: ISO 5291, ,BS 3790, ISO 5290Application: Agricultural Drives,Drives with severe vibrations, V-flat Drives, Conveyor systems, Crushers, Compressors etc.Length Designation: As per section

Section: Entire rangeStandard: IS 2494 Part II, BS 3790,Confoms to :(Test report no. IB-03-4-934)- ATEX

Application: Fire sensitive drives. Example: Coal mines,Petrochemicalinstallations etc.Length Designation: As per section

II 2GD c IIB X

23

35

34

34

34

29


3

WEDGESECTIONCUT EDGEBELTS

NARROWCUT EDGEV-BELTS

VARI SPEEDCUT EDGE V-BELTS

BANDED CUT EDGE BELTS

MULTI RIBBED BELTS

Section: XPZ,XPA,XPB,XPCStandard: BS 3790Application: Drives with very small pulley diametres, high temperatures, high speed,space constraints & high level of power transmission.Length Designation: Lp in mm

Section: 3VX, 5VXStandard: RMA IP-22Application: Drives with very small pulley diametres, high temperatures, high speed,space constraints & high level of power transmission.Length Designation: Belt Ref./10 = La in inches

Section: VARISPEEDStandard: RMA IP-25, ISO 3410,BS 3733Application: Agricultural & Industrial Drives. Speed changing drives- Machine tools, Harvester Combine, textile & Printing machines etc.

Section: HAX,HBX,HCX,HXPZ,HXPAHXPB,HXPC,H3VX,H5VX,HAVX-10,HAVX-13Standard: ISO 5291, BS 3790, ISO 5290, DIN 7753Application: Agricultural Drives,Drives with severe vibrations, Smallerpulley drives, Conveyor systems, Crushers, Compressors etc.Length Designation: As per section

Section: PH,PJ,PK,PL,PMStandard: RMA IP-26Application: Household appliances, Work Tools, Machine Tools, IndustrialMachines etc.Length Designation:Effective Length in mm (Le)

97

23

07

32

31

4

CROSS SECTIONAL VIEW

V-Belt (Wrapped) Cut Edge (Cogged)

Construction :

1. Strong wear resistant bias

cut Neoprene rubberised

fabric

2. High tenacity, low stretch,

specially treated polyester

& Kevlar cord.

3. High resistant cord

embedding cushion

rubber compound

4. Specially compounded

high modulus compression

rubber

General Engineering industries

Agricultural Industries

Automotive Industries

Applications :

Cut Edge (Plain)

1. Special top rubberised

fabric.

2. Specially treated and

stabilised polyester &

Kevlar cord

3. Polychloroprene cushion

rubber compound

4. Fibre filled

polychloroprene base

rubber compound.

Construction :

General Engineering Industries



Applications :

Construction :

1. Special Top Rubberised

Fabric.

2. Polychloroprene cushion

rubber compound.

3. Specially treated &

stabilised polyster &

Kevlar cord.

4. Fibre filled polychloropr-

ene rubber compound.

5. Moulded cogged for

better flexibility.


General Engineering Industries


Applications :

Section

3V5V8V3L4L5LHAHBHCHDHEHSPZHSPAHSPBHSPCH3VH5VH8VHarvester(Vari speed)Cable cord flatFHP (2000 series)9.5/AV1012.5/AV13

Min

19.5” 48.0” 90.0” 10.5” 15.0” 21.0” 33.0” 41.0” 46.0” 90.0” 90.0” 1168 mm 914 mm 1778 mm 2235 mm 33.5” 48.0” 98.0” 865 mm Lp

950 mm Li11.0” 375 mm 588 mm

Max

190” La654” La654” La160” La360” La220” La280” Li500” Li658” Li658” Li658” Li9042 mm Lp3912 mm Lp9144 mm Lp16688 mm Lp178” La360” La664” La& above

& above173” La4064 mm La9296 mm La

Range of V-Belts (Wrapped Belts)

Section

Y8x5ZMAB20C25DEAABB17x17CC25x22SPZSPASPB19SPC

Min

16.5” Li35.0” 9.5” 11.0”13.0”16.0”39.0”31.0”57.0”44.5”90.0” 45.0” 40.0” 32.0” 73.0” 89.0” 365 mm 576 mm 940 mm 1100 mm 1750 mm

Max

172” Li195” Li173” La360” Li658” Li375” Li658” Li655” Li662” Li658” Li260” Li660” Li658” Li658” Li681” Le4953 mm Lp9144 mm Lp16764 mm Lp8763 mm Lp16789 mm Lp

NOTE : Li - Inside Length. La - Outside Length. Lp - Pitch Length. Le - Effective Length

Range of V-Belts (Cut Edge Cogged Belts)

Section

ZXAXBXCXXPZXPAXPBXPCX9.5X12.5

Min

23”22”21”21”590 mm590 mm600 mm600 mm600 mm600 mm

Max

200” Li200” Li200” Li200” Li5117 mm Lp5125 mm Lp5140 mm Lp5163 mm Lp5130 mm La5143 mm La

Section

X15x9X13X11x7X20x12.53VX5VXAVX10AVX13

Min

600 mm600 mm610 mm610 mm24” 24” 600 mm600 mm

Max

5136 mm Lp5130 mm La5124 mm La5158 mm La202” La203” La5130 mm La5143 mm La

Range of V-Belts (Cut Edge Plain Belts)Section

ZABSPZSPA

Min

23”22”21”590 mm590 mm

Max

200” Li200” Li200” Li5117 mm Lp5125 mm Lp

Section

25x169.5/AV1012.5/AV1320x12.5

Min

26” 600 mm600 mm610 mm

Max

200” Li5130 mm La5143 mm La5158 mm La

5

Range of V-Belts (Cut Edge Laminated Belts)

Section

Z

A

B

SPZ

SPA

Min

23”

22”

21”

590 mm

590 mm

Max

200” Li

200” Li

200” Li

5117 mm Lp

5125 mm Lp

Section

25x16

9.5/AV10

12.5/AV13

20x12.5

Min

26” Li

600 mm

600 mm

610 mm

Max

200” Li

5130 mm La

5143 mm La

5158 mm La

Range of V-Belts (Cut Edge Banded Belts)

Section

HAVX-10

HAVX-13

HAX

HBX

H3VX

H5VX

Min

600 mm

600 mm

23.5”

23.5”

23.5”

23.5”

Max

5080 mm La

5080 mm La

200” Li

200” Li

200” Li

200” Li

Range of Ribbed Belts

Section

PHPJPKPLPM

Min

280 mm280 mm280 mm280 mm280 mm

Max

5080 mm Le5080 mm Le5080 mm Le5080 mm Le5080 mm Le

PIX Range of V-Belts (Cut Edge - Vari Speed Belts)

MANUFACTURING DATA (RMA/MPTA IP-25)

Cross Sections Nomenclature : 14 22 V 450(Metric System)

14/16” Top Width0Groove Angle 22

14 22

Vari Speed

45” Pitch Length (Lp)

V 450

Cross Sections Nomenclature : 22 V 1150 A22(S.I. System)

22 mm Top Width

Vari Speed

A2222

1150 mm Effective Length

0Groove Angle 22

V 1150

6

Apart from the above standard range, the product can be manufactured as per the range given.However, the details such as top width, thickness, angle or bottom width, length (Li/La/Lp, mm/inches) are required from the customer.

NOTE : Non standard Cut Edge Belts having following dimensions can be made on request.0 0 1. Top width : 5 mm - 82 mm 2. Thickness : 5 mm - 25 mm 3. Angle : 22 - 42 4. Belt Length (Li) - 23.5” to 200” Li

Vari Speed Belts : As per ISO 3410 : 1989 (E)

Sr. No.

123456789

Cross Section

HGHHHIHJHKHLHMHNHO

Top width (mm)(Nominal)

16.520.425.431.838.144.550.857.263.5

Thickness (mm)(Nominal)

810

12.715.117.519.822.223.925.4

0Angle ( )

262626262626262626

Standard length designation - Datum length (Ld in mm)

Vari Speed Belts : As per BS 3733 : 1974

Sr. No.

12345

Cross Section

HIHJHKHLHM


2532384551


1315182022

0Angle ( )

2626262626

Standard length designation - Pitch Length (Lp in mm)

Vari Speed Belts : As per RMA IP 25 (Dimensions in inches)

Sr. No.

123456789

101112

Cross Section

1422V ..1922V ..2322V ..1926V ..2926V ..3226V ..2530V ..3230V ..4430V ..4036V ..4436V ..4836V ..

Top width(Nominal)

14/1619/1623/1619/1629/1632/1625/1632/1644/1640/1644/1648/16

Thickness (Nominal)

0.310.390.440.440.510.510.590.620.700.700.700.75

0Angle ( )

222222262626303030363636

Standard length designation - Pitch Length (Lp in inches)OREffective Length(Le in mm)

Vari Speed Belts : As per RMA IP 25 (Dimensions in mm)

Sr. No.

123456789

101112

Cross Section

22V - A2230V - A2237V - A2230V - A2646V - A 2651V - A2640V - A3051V - A3070V - A3064V - A3670V - A3676V - A36


223037304651405170647076


81011111313151618181819

0Angle ( )

222222262626303030363636

Standard length designation - Pitch Length (Lp in inches)OREffective Length(Le in mm)

7

8

Dimension Angle Pitchwidth

Amm

Bmm

Section

Deg

Top topitch

Belt Length Factor

Lp to Lamm

Li to Lpmm

Li to Lamm

Standard

RecommendedMin pulleydiameter

Wpmm

hmm

8

Z

A

B

20

C

25

D

E

8

10

13

17

20

22

25

32

38

5

6

8

11

13

14

16

19

23

40

40

40

40

40

40

40

40

40

6.7

8.5

11.0

14.0

17.0

19.0

21.0

27.0

32.0

1.3

2.0

2.75

3.5

4.0

4.8

6.0

8.1

12

16

14

26

31

32

39

40

53

19

22

36

43

48

56

61

79

92

31

38

50

69

79

88

100

119

145

DIN 2215

IS 2494,BS 3790,IS0 4183, ISO 4184

IS 2494,BS 3790IS0 4183, ISO 4184

IS 2494,BS 3790IS0 4183, ISO 4184

DIN 2215

IS 2494,BS 3790IS0 4183, ISO 4184

DIN 2215

IS 2494,BS 3790IS0 4183, ISO 4184

IS 2494

40

50

75

125

160

200

250

355

500 ‘PIX’ FRAS belts conforms to : II 2GD c IIB X (Test report no. IB-03-4-934) - ATEX

B

h

A

Wp

PIX Classical BeltsThe first of the V-belts to enter the power transmission

scenario. The continued effort of the R&D of PIX has enabled

to achieve the power ratings considerably higher than most

of the available in the market. The compounds used to build

up these belts are well chosen to match the stipulated power

ratings thus offering distinct advantages regarding the

increased factor of safety on critical drives.

The standards followed by PIX has put the tolerancs to be

much more stringent than BS 3790, which forms the basis of

PIX classical belts.

Properties :

PIX classical belts have a belt width to height ratio of approx

1.6:1. The maximum permissible belt speed is 30 m/sec,

which should not be exceeded. The permissible flex rate is

around f=80 per second

Features:

• Antistatic 0 0• Temperature range : -18 C to +70 C

• Maximum belt linear speed : 30 m/sec

• ATEX certified FRAS belts are available

Applications :

Primarily used as replacement on industrial drives. Special

application is V flat drives where only classical belts are

recommended.

In applications where reverse idlers have to be used, classical

belts are advantageous than other belts, because of smaller

heights.

Standards & Dimensions:

PIX manufactures the entire range of Classical V-belts. The

nominal length designation for classical v-belts is the inside

length in inches.

CLA

SSIC

AL

SEC

TIO

N :

Z

Z 55

Z 60

Z 65

Z 70

Z 75

Z 80

Z 85

Z 90

Z 95

Z 100

1397

1524

1651

1778

1905

2032

2159

2286

2413

2540

2667

2794

2921

3048

3175

3302

3429

3556

3683

3810

Z 105

Z 110

Z 115

Z 120

Z 125

Z 130

Z 135

Z 140

Z 145

Z 150

Z 9.5

Z 10

Z 15

Z 20

Z 25

Z 30

Z 35

Z 40

Z 45

Z 50

241

254

381

508

635

762

889

1016

1143

1270

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

• Unlisted Sizes on request

Z 155

Z 160

Z 165

Z 170

Z 175

Z 180

Z 185

Z 190

Z 195

3937

4064

4191

4318

4445

4572

4699

4826

4953

9

CLA

SSIC

AL

SEC

TIO

N :

A

A 100

A 105

A 110

A 115

A 120

A 125

A 130

A 135

A 140

A 145

A 150

A 155

A 160

A 165

A 170

A 175

A 180

A 185

2540

2667

2794

2921

3048

3175

3302

3429

3556

3683

3810

3937

4064

4191

4318

4445

4572

4699

4826

4953

5080

5207

5334

5461

5588

5715

5842

5969

6096

6223

6350

6477

6604

6731

6858

6985

A 190

A 195

A 200

A 205

A 210

A 215

A 220

A 225

A 230

A 235

A 240

A 245

A 250

A 255

A 260

A 265

A 270

A 275

A 13

A 15

A 20

A 25

A 30

A 35

A 40

A 45

A 50

A 55

A 60

A 65

A 70

A 75

A 80

A 85

A 90

A 95

330

381

508

635

762

889

1016

1143

1270

1397

1524

1651

1778

1905

2032

2159

2286

2413

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)


A 280

A 285

A 290

A 295

A 300

A 305

A 310

A 315

A 320

A 325

A 330

A 335

A 340

A 345

A 350

A 355

A 360

7112

7239

7366

7493

7620

7747

7874

8001

8128

8255

8382

8509

8636

8763

8890

9017

9144

10

CLA

SSIC

AL

SEC

TIO

N :

B

B 180B 185B 190B 195B 200B 205B 210B 215B 220B 225B 230B 235B 240B 245B 250B 255B 260B 265B 270B 275B 280B 285B 290B 295B 300B 305B 310B 315B 320B 325B 330B 335B 340

457246994826495350805207533454615588571558425969609662236350647766046731685869857112723973667493762077477874800181288255838285098636

87638890901791449271939895259652977999061003310160102871041410541106681079510922110491117611303114301155711684118111193812065121921231912446125731270012827



4065086357628891016114312701397152416511778190520322159228624132540266727942921304831753302342935563683381039374064419143184445

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)


B 510B 515B 520B 525B 530B 535B 540B 545B 550B 555B 560B 565B 570B 575B 580B 585B 590B 595B 600B 605B 610B 615B 620B 625B 630B 635B 640B 645B 650B 655B 658

12954130811320813335134621358913716138431397014097142241435114478146051473214859149861511315240153671549415621157481587516002161291625616383165101663716713

CLA

SSIC

AL

SEC

TIO

N :

C

C 160C 165C 170C 175C 180C 185C 190C 195C 200C 205C 210C 215C 220C 225C 230C 235C 240C 245C 250C 255C 260C 265C 270C 275C 280C 285

40644191431844454572469948264953508052075334546155885715584259696096622363506477660467316858698571127239

7366749376207747787480018128825583828509863687638890901791449271939895259652977999061003310160102871041410541



787889101611431270139715241651177819052032215922862413254026672794292130483175330234293556368338103937

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

BeltReference

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

InsideLength(mm)


1066810795109221104911176113031143011557116841181111938120651219212319124461257312700128271295413081132081333513462135891371613843

C 550C 555C 560C 565C 570C 575C 580C 585C 590C 595C 600C 605C 610C 615C 620C 625C 630C 635C 640C 645C 650C 655C 658

1397014097142241435114478146051473214859149861511315240153671549415621157481587516002161291625616383165101663716713


CLA

SSIC

AL

SEC

TIO

N :

D

D 170D 175D 180D 185D 190D 195D 200D 205D 210D 215D 220D 225D 230D 235D 240D 245D 250D 255D 260D 265D 270D 275D 280D 285D 290

4318444545724699482649535080520753345461558857155842596960966223635064776604673168586985711272397366

749376207747787480018128825583828509863687638890901791449271939895259652977999061003310160102871041410541


D 44.5D 50D 55D 60D 65D 70D 75D 80D 85D 90D 95D 100D 105D 110D 115D 120D 125D 130D 135D 140D 145D 150D 155D 160D 165

1130127013971524165117781905203221592286241325402667279429213048317533023429355636833810393740644191

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

BeltReference

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

InsideLength(mm)


10668107951092211049111761130311430115571168411811119381206512192123191244612573127001282712954130811320813335134621358913716

D 545D 550D 555D 560D 565D 570D 575D 580D 585D 590D 595D 600D 605D 610D 615D 620D 625D 630D 635D 640D 645D 650D 655D 662

138431397014097142241435114478146051473214859149861511315240153671549415621157481587516002161291625616383165101663716815


11

CLA

SSIC

AL

SEC

TIO

N :

E

E 205E 210E 215E 220E 225E 230E 235E 240E 245E 250E 255E 260E 265E 270E 275E 280E 285E 290E 295E 300E 305E 310E 315

52075334546155885715584259696096622363506477660467316858698571127239736674937620774778748001

8128825583828509863687638890901791449271939895259652977999061003310160102871041410541106681079510922



22862413254026672794292130483175330234293556368338103937406441914318444545724699482649535080

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

BeltReference

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

InsideLength(mm)


1104911176113031143011557116841181111938120651219212319124461257312700128271295413081132081333513462135891371613843


1397014097142241435114478146051473214859149861511315240153671549415621157481587516002161291625616383165101663716713


12

CLA

SSIC

AL

SEC

TIO

N :

20


39

40

45

50

55

60

65

InsideLength(Inches)

70

75

80

85

90

95

100

105

110

115

120

125

130

135

140

145

150

155

160

165

170

175

180

185

190

195

200

205

210

215

220

225

230

235

240

245

250

255

260

265

270

275

280

285

290

295

300

305

310

315

320

325

330

335

340

345

350

355

360

365

370

375










CLA

SSIC

AL

SEC

TIO

N :

25


57

60

65

70

75

80

85

90

95

100

105

110

115


120

125

130

135

140

145

150

155

160

165

170

175

180

185

190

195

200

205

210

215

220

225

230

235

240

245

250

255

260

265

270

275

280

285

290

295

300

305

310

315

320

325

330

335

340

345

350

355

360

365

370

375

380

385

390

395

400

405

410

415

420

425

430

435

440

445

450

455

460

465

470

475

480

485

490

495

500

505

510

515

520

525

530

535

540

545

550

555

560

565

570

575

580

585

590

595

600

605

610

615

620

625

630

635

640

645

650

655










B

h

A

Wp

13

PIX Wedge BeltsWedge belts have been the result of continuous thrust by the

manufacturers and users on higher power transmissions with

reduction in space requirements. Wedge belts can transmit

higher powers to extent of 1.5 to 2 times the classical belts

with the same top width. This has been achieved by the

dimensional changes, apart from better cord constructions

used & the optimum placing of the cord line which provides

the best support to the cord while in motion. For the efficient

performance of wedge drive it is essential that the proper

tension be maintained in the drive, failure to maintain the same

will render the purpose of wedge belts ineffective.

Properties :

•The top width to height ratio is 1.2:1

•‘The maximum permissible belt speed is 42 m/s

•The permissible flex rate is around f=100 per second

•Less deformation of the belt cross section when in contact

with the pulleys ensures better contact between the belt

flanks & the pulley grooves.

Features:



• ATEX certified FRAS belts are available

Applications :

Wedge belts are used primarily on all the new drives because

of the space savings achieved by using these belts. Wedge

belts finds its extensive use in all industrial applications from

light duty drives to heavily loaded drives.

Standards & dimensions :

PIX manufactures the entire range of wedge belts. The nominal

length designation for wedge belts is the pitch length in mm

•‘PIX’ FRAS belts conforms to : II 2GD c IIB X (Test report no. IB-03-4-934)


Amm

Bmm

Section

Deg

Top topitch

Belt Length Factor

Lp to Lamm

Li to Lpmm

Li to Lamm

Standard

Wpmm

hmm

SPZ

SPA

SPB

19

SPC

10

13

17

19

22

8

10

14

15

18

40

40

40

40

40

8.5

11.0

14.0

16.0

19.0

2.0

2.75

3.50

4.00

4.80

13

18

28

25

30

37

45

60

69

83

50

63

88

94

113

BS 3790

BS 3790

BS 3790

DIN 7753

BS 3790

67

100

160

180

224


14

WED

GE

SEC

TIO

N :

SPZ

SPZ 1900

SPZ 2000

SPZ 2100

SPZ 2200

SPZ 2300

SPZ 2400

SPZ 2500

SPZ 2600

SPZ 2700

SPZ 2800

SPZ 2900

SPZ 3000

SPZ 3100

SPZ 3200

SPZ 3300

SPZ 3400

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

3100

3200

3300

3400

3500

3600

3700

3800

3900

4000

4100

4200

4300

4400

4500

4600

4700

4800

4900

4953

SPZ 3500

SPZ 3600

SPZ 3700

SPZ 3800

SPZ 3900

SPZ 4000

SPZ 4100

SPZ 4200

SPZ 4300

SPZ 4400

SPZ 4500

SPZ 4600

SPZ 4700

SPZ 4800

SPZ 4900

SPZ 4953

SPZ 365

SPZ 400

SPZ 500

SPZ 600

SPZ 700

SPZ 800

SPZ 900

SPZ 1000

SPZ 1100

SPZ 1200

SPZ 1300

SPZ 1400

SPZ 1500

SPZ 1600

SPZ 1700

SPZ 1800

365

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)

BeltReference

PitchLength(mm)


WED

GE

SEC

TIO

N :

SPA

SPA 3500

SPA 3600

SPA 3700

SPA 3800

SPA 3900

SPA 4000

SPA 4100

SPA 4200

SPA 4300

SPA 4400

SPA 4500

SPA 4600

SPA 4700

SPA 4800

SPA 4900

SPA 5000

SPA 5100

SPA 5200

SPA 5300

SPA 5400

SPA 5500

SPA 5600

SPA 5700

SPA 5800

SPA 5900

SPA 6000

SPA 6100

SPA 6200

SPA 6300

SPA 6400

3500

3600

3700

3800

3900

4000

4100

4200

4300

4400

4500

4600

4700

4800

4900

5000

5100

5200

5300

5400

5500

5600

5700

5800

5900

6000

6100

6200

6300

6400

6500

6600

6700

6800

6900

7000

7100

7200

7300

7400

7500

7600

7700

7800

7900

8000

8100

8200

8300

8400

8500

8600

8700

8800

8900

9000

9144

SPA 6500

SPA 6600

SPA 6700

SPA 6800

SPA 6900

SPA 7000

SPA 7100

SPA 7200

SPA 7300

SPA 7400

SPA 7500

SPA 7600

SPA 7700

SPA 7800

SPA 7900

SPA 8000

SPA 8100

SPA 8200

SPA 8300

SPA 8400

SPA 8500

SPA 8600

SPA 8700

SPA 8800

SPA 8900

SPA 9000

SPA 9144

SPA 576

SPA 600

SPA 700

SPA 800

SPA 900

SPA 1000

SPA 1100

SPA 1200

SPA 1300

SPA 1400

SPA 1500

SPA 1600

SPA 1700

SPA 1800

SPA 1900

SPA 2000

SPA 2100

SPA 2200

SPA 2300

SPA 2400

SPA 2500

SPA 2600

SPA 2700

SPA 2800

SPA 2900

SPA 3000

SPA 3100

SPA 3200

SPA 3300

SPA 3400

576

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

3100

3200

3300

3400

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)

BeltReference

PitchLength(mm)


15

WED

GE

SEC

TIO

N :

SPB

SPB 6300

SPB 6400

SPB 6500

SPB 6600

SPB 6700

SPB 6800

SPB 6900

SPB 7000

SPB 7100

SPB 7200

SPB 7300

SPB 7400

SPB 7500

SPB 7600

SPB 7700

SPB 7800

SPB 7900

SPB 8000

SPB 8100

SPB 8200

SPB 8300

SPB 8400

SPB 8500

SPB 8600

SPB 8700

SPB 8800

SPB 8900

SPB 9000

SPB 9100

SPB 9200

SPB 9300

SPB 9400

SPB 9500

SPB 9600

SPB 9700

SPB 9800

SPB 9900

SPB 10000

SPB 10100

SPB 10200

SPB 10300

SPB 10400

SPB 10500

SPB 10600

SPB 10700

SPB 10800

SPB 10900

SPB 11000

SPB 11100

SPB 11200

SPB 11300

SPB 11400

SPB 11500

SPB 11600

6300

6400

6500

6600

6700

6800

6900

7000

7100

7200

7300

7400

7500

7600

7700

7800

7900

8000

8100

8200

8300

8400

8500

8600

8700

8800

8900

9000

9100

9200

9300

9400

9500

9600

9700

9800

9900

10000

10100

10200

10300

10400

10500

10600

10700

10800

10900

11000

11100

11200

11300

11400

11500

11600

11700

11800

11900

12000

12100

12200

12300

12400

12500

12600

12700

12800

12900

13000

13100

13200

13300

13400

13500

13600

13700

13800

13900

14000

14100

14200

14300

14400

14500

14600

14700

14800

14900

15000

15100

15200

15300

15400

15500

15600

15700

15800

15900

16000

16100

16200

16300

16400

16500

16600

16700

16764

SPB 11700

SPB 11800

SPB 11900

SPB 12000

SPB 12100

SPB 12200

SPB 12300

SPB 12400

SPB 12500

SPB 12600

SPB 12700

SPB 12800

SPB 12900

SPB 13000

SPB 13100

SPB 13200

SPB 13300

SPB 13400

SPB 13500

SPB 13600

SPB 13700

SPB 13800

SPB 13900

SPB 14000

SPB 14100

SPB 14200

SPB 14300

SPB 14400

SPB 14500

SPB 14600

SPB 14700

SPB 14800

SPB 14900

SPB 15000

SPB 15100

SPB 15200

SPB 15300

SPB 15400

SPB 15500

SPB 15600

SPB 15700

SPB 15800

SPB 15900

SPB 16000

SPB 16100

SPB 16200

SPB 16300

SPB 16400

SPB 16500

SPB 16600

SPB 16700

SPB 16764

SPB 940

SPB 1000

SPB 1100

SPB 1200

SPB 1300

SPB 1400

SPB 1500

SPB 1600

SPB 1700

SPB 1800

SPB 1900

SPB 2000

SPB 2100

SPB 2200

SPB 2300

SPB 2400

SPB 2500

SPB 2600

SPB 2700

SPB 2800

SPB 2900

SPB 3000

SPB 3100

SPB 3200

SPB 3300

SPB 3400

SPB 3500

SPB 3600

SPB 3700

SPB 3800

SPB 3900

SPB 4000

SPB 4100

SPB 4200

SPB 4300

SPB 4400

SPB 4500

SPB 4600

SPB 4700

SPB 4800

SPB 4900

SPB 5000

SPB 5100

SPB 5200

SPB 5300

SPB 5400

SPB 5500

SPB 5600

SPB 5700

SPB 5800

SPB 5900

SPB 6000

SPB 6100

SPB 6200

940

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

3100

3200

3300

3400

3500

3600

3700

3800

3900

4000

4100

4200

4300

4400

4500

4600

4700

4800

4900

5000

5100

5200

5300

5400

5500

5600

5700

5800

5900

6000

6100

6200

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)

BeltReference

PitchLength(mm)


16

WED

GE

SEC

TIO

N :

SPC

SPC 6800

SPC 6900

SPC 7000

SPC 7100

SPC 7200

SPC 7300

SPC 7400

SPC 7500

SPC 7600

SPC 7700

SPC 7800

SPC 7900

SPC 8000

SPC 8100

SPC 8200

SPC 8300

SPC 8400

SPC 8500

SPC 8600

SPC 8700

SPC 8800

SPC 8900

SPC 9000

SPC 9100

SPC 9200

SPC 9300

SPC 9400

SPC 9500

SPC 9600

SPC 9700

SPC 9800

SPC 9900

SPC 10000

SPC 10100

SPC 10200

SPC 10300

SPC 10400

SPC 10500

SPC 10600

SPC 10700

SPC 10800

SPC 10900

SPC 11000

SPC 11100

SPC 11200

SPC 11300

SPC 11400

SPC 11500

SPC 11600

SPC 11700

SPC 11800

6800

6900

7000

7100

7200

7300

7400

7500

7600

7700

7800

7900

8000

8100

8200

8300

8400

8500

8600

8700

8800

8900

9000

9100

9200

9300

9400

9500

9600

9700

9800

9900

10000

10100

10200

10300

10400

10500

10600

10700

10800

10900

11000

11100

11200

11300

11400

11500

11600

11700

11800

11900

12000

12100

12200

12300

12400

12500

12600

12700

12800

12900

13000

13100

13200

13300

13400

13500

13600

13700

13800

13900

14000

14100

14200

14300

14400

14500

14600

14700

14800

14900

15000

15100

15200

15300

15400

15500

15600

15700

15800

15900

16000

16100

16200

16300

16400

16500

16600

16700

16789

SPC 11900

SPC 12000

SPC 12100

SPC 12200

SPC 12300

SPC 12400

SPC 12500

SPC 12600

SPC 12700

SPC 12800

SPC 12900

SPC 13000

SPC 13100

SPC 13200

SPC 13300

SPC 13400

SPC 13500

SPC 13600

SPC 13700

SPC 13800

SPC 13900

SPC 14000

SPC 14100

SPC 14200

SPC 14300

SPC 14400

SPC 14500

SPC 14600

SPC 14700

SPC 14800

SPC 14900

SPC 15000

SPC 15100

SPC 15200

SPC 15300

SPC 15400

SPC 15500

SPC 15600

SPC 15700

SPC 15800

SPC 15900

SPC 16000

SPC 16100

SPC 16200

SPC 16300

SPC 16400

SPC 16500

SPC 16600

SPC 16700

SPC 16789

SPC 1750

SPC 1800

SPC 1900

SPC 2000

SPC 2100

SPC 2200

SPC 2300

SPC 2400

SPC 2500

SPC 2600

SPC 2700

SPC 2800

SPC 2900

SPC 3000

SPC 3100

SPC 3200

SPC 3300

SPC 3400

SPC 3500

SPC 3600

SPC 3700

SPC 3800

SPC 3900

SPC 4000

SPC 4100

SPC 4200

SPC 4300

SPC 4400

SPC 4500

SPC 4600

SPC 4700

SPC 4800

SPC 4900

SPC 5000

SPC 5100

SPC 5200

SPC 5300

SPC 5400

SPC 5500

SPC 5600

SPC 5700

SPC 5800

SPC 5900

SPC 6000

SPC 6100

SPC 6200

SPC 6300

SPC 6400

SPC 6500

SPC 6600

SPC 6700

1750

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

3100

3200

3300

3400

3500

3600

3700

3800

3900

4000

4100

4200

4300

4400

4500

4600

4700

4800

4900

5000

5100

5200

5300

5400

5500

5600

5700

5800

5900

6000

6100

6200

6300

6400

6500

6600

6700

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)

BeltReference

PitchLength(mm)


17

WED

GE

SEC

TIO

N :

19

19x3700

19x3800

19x3900

19x4000

19x4100

19x4200

19x4300

19x4400

19x4500

19x4600

19x4700

19x4800

19x4900

19x5000

19x5100

19x5200

19x5300

19x5400

19x5500

19x5600

19x5700

19x5800

19x5900

19x6000

19x6100

19x6200

3700

3800

3900

4000

4100

4200

4300

4400

4500

4600

4700

4800

4900

5000

5100

5200

5300

5400

5500

5600

5700

5800

5900

6000

6100

6200

6300

6400

6500

6600

6700

6800

6900

7000

7100

7200

7300

7400

7500

7600

7700

7800

7900

8000

8100

8200

8300

8400

8500

8600

8700

8763

19x6300

19x6400

19x6500

19x6600

19x6700

19x6800

19x6900

19x7000

19x7100

19x7200

19x7300

19x7400

19x7500

19x7600

19x7700

19x7800

19x7900

19x8000

19x8100

19x8200

19x8300

19x8400

19x8500

19x8600

19x8700

19x8763

19x1100

19x1200

19x1300

19x1400

19x1500

19x1600

19x1700

19x1800

19x1900

19x2000

19x2100

19x2200

19x2300

19x2400

19x2500

19x2600

19x2700

19x2800

19x2900

19x3000

19x3100

19x3200

19x3300

19x3400

19x3500

19x3600

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

3100

3200

3300

3400

3500

3600

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)

BeltReference

PitchLength(mm)


PIX Narrow V-BeltsConstructionally & properties wise the narrow belts are

similar to the wedge belts in performance, with the only

difference being the additional top ridge provided in the

narrow belts. Narrow belts are manufactured in accordance

with RMA-IP 22 standards.

Properties :

Maximum permissible belt speed is 42 m/s

Maximum flexing rate is f=100 per second

Features:



Dimensions :

The standard length designation in narrow belts is as follows:

Belt no./10 gives outside length in inches

Ex.:5V 950 means 950/10= 95 inches outside length in inches

Interchangeability between Narrow & Wedge belts

Narrow Wedge

3V / 9N5V / 15N

SPZSPB

B

h

A

Wp

18


Amm

Bmm

Section

Deg

Belt Length Factor

Lp to Lamm

Li to Lpmm

Li to Lamm

Standard

Wpmm

3V

5V

8V

9.7

16

25

8

14

23

40

40

40

8.9

15.2

25.4

13

25

53

37

60

92

50

85

145

RMA IP 22

RMA IP 22

RMA IP 22

67

180

317


19

NA

RRO

W S

ECTI

ON

: 3

VN

ARRO

W S

ECTI

ON

: 5

V

3V 750

3V 800

3V 850

3V 900

3V 950

3V 1000

3V 1050

3V 1100

3V 1150

3V 1200

3V 1250

3V 1300

1905

2032

2159

2286

2413

2540

2667

2794

2921

3048

3175

3302

3429

3556

3683

3810

3937

4064

4191

4318

4445

4572

4699

4826

3V 1350

3V 1400

3V 1450

3V 1500

3V 1550

3V 1600

3V 1650

3V 1700

3V 1750

3V 1800

3V 1850

3V 1900

3V 195

3V 200

3V 250

3V 300

3V 350

3V 400

3V 450

3V 500

3V 550

3V 600

3V 650

3V 700

495

508

635

762

889

1016

1143

1270

1397

1524

1651

1778

BeltReference

BeltReference

OutsideLength(mm)

OutsideLength(mm)

BeltReference

OutsideLength(mm)


5V 1700

5V 1750

5V 1800

5V 1850

5V 1900

5V 1950

5V 2000

5V 2050

5V 2100

5V 2150

5V 2200

5V 2250

5V 2300

5V 2350

5V 2400

5V 2450

5V 2500

5V 2550

5V 2600

5V 2650

5V 2700

5V 2750

5V 2800

5V 2850

5V 2900

4318

4445

4572

4699

4826

4953

5080

5207

5334

5461

5588

5715

5842

5969

6096

6223

6350

6477

6604

6731

6858

6985

7112

7239

7366

7493

7620

7747

7874

8001

8128

8255

8382

8509

8636

8763

8890

9017

9144

9271

9398

9525

9652

9779

9906

10033

10160

10287

10414

10541

5V 2950

5V 3000

5V 3050

5V 3100

5V 3150

5V 3200

5V 3250

5V 3300

5V 3350

5V 3400

5V 3450

5V 3500

5V 3550

5V 3600

5V 3650

5V 3700

5V 3750

5V 3800

5V 3850

5V 3900

5V 3950

5V 4000

5V 4050

5V 4100

5V 4150

5V 480

5V 500

5V 550

5V 600

5V 650

5V 700

5V 750

5V 800

5V 850

5V 900

5V 950

5V 1000

5V 1050

5V 1100

5V 1150

5V 1200

5V 1250

5V 1300

5V 1350

5V 1400

5V 1450

5V 1500

5V 1550

5V 1600

5V 1650

1219

1270

1397

1524

1651

1778

1905

2032

2159

2286

2413

2540

2667

2794

2921

3048

3175

3302

3429

3556

3683

3810

3937

4064

4191

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

BeltReference

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

InsideLength(mm)

5V 4200

5V 4250

5V 4300

5V 4350

5V 4400

5V 4450

5V 4500

5V 4550

5V 4600

5V 4650

5V 4700

5V 4750

5V 4800

5V 4850

5V 4900

5V 4950

5V 5000

5V 5050

5V 5100

5V 5150

5V 5200

5V 5250

5V 5300

5V 5350

5V 5400

10668

10795

10922

11049

11176

11303

11430

11557

11684

11811

11938

12065

12192

12319

12446

12573

12700

12827

12954

13081

13208

13335

13462

13589

13716

5V 5450

5V 5500

5V 5550

5V 5600

5V 5650

5V 5700

5V 5750

5V 5800

5V 5850

5V 5900

5V 5950

5V 6000

5V 6050

5V 6100

5V 6150

5V 6200

5V 6250

5V 6300

5V 6350

5V 6400

5V 6450

5V 6500

5V 6540

13843

13970

14097

14224

14351

14478

14605

14732

14859

14986

15113

15240

15367

15494

15621

15748

15875

16002

16129

16256

16383

16510

16612


20

NA

RRO

W S

ECTI

ON

: 8

V

8V 2900

8V 3000

8V 3100

8V 3200

8V 3300

8V 3400

8V 3500

8V 3600

8V 3700

8V 3800

8V 3900

8V 4000

8V 4100

8V 4200

8V 4300

8V 4400

8V 4500

8V 4600

8V 4700

8V 4800

7366

7620

7874

8128

8382

8636

8890

9144

9398

9652

9906

10160

10414

10668

10922

11176

11430

11684

11938

12192

12446

12700

12954

13208

13462

13716

13970

14224

14478

14732

14986

15240

15494

15748

16002

16256

16510

16612

8V 4900

8V 5000

8V 5100

8V 5200

8V 5300

8V 5400

8V 5500

8V 5600

8V 5700

8V 5800

8V 5900

8V 6000

8V 6100

8V 6200

8V 6300

8V 6400

8V 6500

8V 6540

8V 900

8V 1000

8V 1100

8V 1200

8V 1300

8V 1400

8V 1500

8V 1600

8V 1700

8V 1800

8V 1900

8V 2000

8V 2100

8V 2200

8V 2300

8V 2400

8V 2500

8V 2600

8V 2700

8V 2800

2286

2540

2794

3048

3302

3556

3810

4064

4318

4572

4826

5080

5334

5588

5842

6096

6350

6604

6858

7112

BeltReference

BeltReference

OutsideLength(mm)

OutsideLength(mm)

BeltReference

OutsideLength(mm)


AngleAmm

Bmm

Section

Deg

Standard Min pulleydiameter

AA

BB

CC

25

13

17

22

25

10

14

17

22

40

40

40

40

IS 11038, ISO 5289

IS 11038IS 11038, ISO 5289

IS 11038IS 11038, ISO 5289

RMA IP 21IS 11038, ISO 5289

75

125

200

250

B

A

21

PIX Hexagonal BeltsHexagonal V-belts are also known as double V-belts, can be

in simple terms be considered as two V-belts joined back

to back. The neutral axis containing the tension member is

exactly half way up the section.

Applications :

Hexagonal belts finds its application in the drives where

several pulleys in the same plane are to be driven in the

clockwise and anti-clockwise direction simultaneously. The

polyester tension cord placed at the centre of the

construction provides the belt extreme flexibility and low

stretch properties. It is because of this positioning of the cord

the same is not subjected to any other forces as in the case of

normal V-belts. Double V-belts normally finds its application in

machines & rice mills. However of late these belts are rapidly

finding its application in industrial drives.

Drive Calculation :

Drive calculation for double V-belts differ from the drive

calculations of two pulley drives. The effective lengths,

rotational speeds, transmission ratios & belt speeds are

determined by the effective pulley diameters. We suggest that

the customer should get back to us for assistance in using

these belts. The maximum permissible belt speed is 30m/s

Features:



Dimensions :

For all practical purposes the length of double V-belts is

considered as the effective length which is roughly the belt

length at the centre.

22

CLA

SSIC

AL

SEC

TIO

N :

AA

455358606566687071

AA 73

AA 75AA 76

AA 77AA 78

AA 80

AA 83AA 85

AA 87

737576777880838587

1890

1941

1966

1992

2017

2068

2144

2195

2246

AA 45

AA 53AA 58

AA 60

AA 65AA 66

AA 68AA 70

AA 71

1143

1382

1509

1560

1687

1712

1763

1814

1839

BeltReference

Li(inches)

InsideLength(mm)

AA 88AA 90

AA 91

AA 95AA 96

AA 102AA 103

AA 105AA 108

227123222347244924742627265227032779

8890919596102103105108

AA 112AA 120AA 128

AA 146AA 152

AA 180AA 185

AA 220

AA 260

288130843287374438974608473555886604

112120128146152180185220260

BeltReference

Li(inches)

InsideLength(mm)

BeltReference

Li(inches)

InsideLength(mm)

BeltReference

Li(inches)

InsideLength(mm)


CLA

SSIC

AL

SEC

TIO

N :

BB

4050100150

BB 200

BB 250

BB 300

BB 350

200

250

300

350

5080

6350

7620

8890

BB 40

BB 50

BB 100

BB 150

1016

1270

2540

3810

BeltReference

Li(inches)

InsideLength(mm)

BB 400BB 450BB 500BB 550

10160

11430

12700

13970

400450500550

BB 600

BB 650

BB 660

15240

16510

16764

600

650

660

BeltReference

Li(inches)

InsideLength(mm)

BeltReference

Li(inches)

InsideLength(mm)

BeltReference

Li(inches)

InsideLength(mm)


CLA

SSIC

AL

SEC

TIO

N :

CC

73

100

150

200

CC 250CC 300CC 350CC 400

250

300

350

400

6350

7620

8890

10160

CC 73CC 100CC 150CC 200

1854

2540

3810

5080

BeltReference

Li(inches)

InsideLength(mm)

CC 450

CC 500

CC 550

CC 600

11430

12700

13970

15240

450

500

550

600

CC 650

CC 658

16510

16713

650

658

BeltReference

Li(inches)

InsideLength(mm)

BeltReference

Li(inches)

InsideLength(mm)

BeltReference

Li(inches)

InsideLength(mm)


CLA

SSIC

AL

SEC

TIO

N :

25x2

2

89

100

150

200

250300350400

250

300

350

400

63507620889010160

89100150200

2261254038105080

BeltReference

Li(inches)

InsideLength(mm)

450

500

550

600

11430

12700

13970

15240

450

500

550

600

650

681

16510

17297

650

681

BeltReference

Li(inches)

InsideLength(mm)

BeltReference

Li(inches)

InsideLength(mm)

BeltReference

Li(inches)

InsideLength(mm)


e

A

B

Angle

Amm

Bmm

Section

Deg

Standard Min pulleydia.

HA

HB

HC

HD

HSPZ

HSPA

HSPB

HSPC

H3V

H5V

H8V

13.0

17.0

22.0

32.0

10.0

13.0

17.0

22.0

9.7

15.8

25.4

40

40

40

40

40

40

40

40

40

40

40

ISO 5291

ISO 5291

ISO 5291

ISO 5291

BS 3790

BS 3790

BS 3790

BS 3790

ISO 5290

ISO 5290

ISO 5290

80 de

130 de

210 de

370 de

67 dp

100 dp

160 dp

224 dp

67 de

180 de

317 de

10.0

13.0

16.0

21.5

10.0

12.0

16.0

20.0

10.0

16.0

25.0

NominalLength

Dimension Pitchdistance

mm

15.9

19.0

25.5

37.0

12.0

15.0

19.0

25.5

10.3

17.5

28.6

Inside

length

in

inches

Pitchlengthin mm

Belt no./10outsidelength

in inches

23

PIX Banded BeltsPix Banded belts are made up from Classical, Wedge or

Narrow belts with strong tie band over them. Each band may

contain the required number of belts. Maximum up to 5 belts

in one tie band, depending upon the drive conditions, are

recommended.

Applications :

PIX banded belts are recommended on drives under the

conditions of-

• Severe vibrations,

• Vertical shaft drives,

• V-flat drives,

• Agricultural drives,

• Conveyer systems,

• Crushers, Compressors, Generator sets, Pumps etc.

Features :


• Recommended number of Ribs = 5 (Max)

NOTE :

While using banded belts it is always recommended to use

standard pulleys with proper guard only.

The proper belt sitting can only be obtained if the pitch

distances maintained for the belts & for pulleys are same.

We recommend that the customer get back to us with details

before using banded belts to enable us to provide the best

suggestions. Improper design using banded belts can lead to

very rapid failure of the drive system.

24

BA

ND

ED B

ELTS

: H

A

HA 59

HA 64

HA 67

HA 71

HA 75

1499

1626

1702

1803

1905

2007

2489

2540

2642

2845

HA 79

HA 98

HA 100

HA 104

HA 112

HA 33

HA 47

HA 51

HA 56

HA 57

838

1194

1295

1422

1448

BeltRef.

BeltRef.

InsideLength(mm)

InsideLength(mm)

BeltRef.

BeltRef.

BeltRef.

InsideLength(mm)

InsideLength(mm)

InsideLength(mm)

HA 120

HA 128

HA 144

HA 157

HA 167

3048

3251

3658

3988

4242

HA 177

HA 187HA 200

HA 220

HA 235

4496

4750

5080

5588

5969

BeltRef.

InsideLength(mm)

HA 250

HA 270

HA 280

6350

6858

7112


BA

ND

ED B

ELTS

: H

B

HB 64

HB 67

HB 71

HB 73

HB 75

HB 79

HB 83

1626

1702

1803

1854

1905

2007

2108

2235

2311

2400

2489

2591

2692

2845

HB 88

HB 91

HB 94.5

HB 98

HB 102

HB 106

HB 112

HB 41

HB 47

HB 51

HB 55

HB 59

HB 61

HB 63

1041

1194

1295

1397

1499

1549

1600

BeltRef.

BeltRef.

InsideLength(mm)

InsideLength(mm)

BeltRef.

BeltRef.

BeltRef.

InsideLength(mm)

InsideLength(mm)

InsideLength(mm)

HB 118

HB 120

HB 128

HB 132

HB 140

HB 146

HB 148

2997

3048

3251

3353

3556

3708

3759

HB 158

HB 167

HB 177

HB 187

HB 197

HB 208

HB 220

4013

4242

4496

4750

5004

5283

5588

BeltRef.

InsideLength(mm)

HB 250

HB 270

HB 300

HB 340

HB 375

HB 450

HB 500

6350

6858

7620

8636

9525

11430

12700


BA

ND

ED B

ELTS

: H

C

HC 98

HC 108

HC 120

HC 128

HC 140

2489

2743

3048

3251

3556

3708

3915

4242

4496

4750

HC 146

HC 151

HC 167

HC 177

HC 187

HC 46

HC 58

HC 70

HC 80

HC 90

1168

1473

1778

2032

2286

BeltRef.

BeltRef.

InsideLength(mm)

InsideLength(mm)

BeltRef.

BeltRef.

BeltRef.

InsideLength(mm)

InsideLength(mm)

InsideLength(mm)

HC 197

HC 208

HC 220

HC 236

HC 248

5004

5283

5588

5994

6299

HC 250

HC 300

HC 350

HC 400

HC 500

6350

7620

8890

10160

12700

BeltRef.

InsideLength(mm)

HC 600

HC 658

15240

16713


BA

ND

ED B

ELTS

: H

D

HD 158

HD 162

HD 173

HD 180

HD 195

4013

4115

4394

4572

4953

5334

5715

6096

6477

6858

HD 210

HD 225

HD 240

HD 255

HD 270

HD 90

HD 110

HD 120

HD 128

HD 144

2286

2794

3048

3251

3658

BeltRef.

BeltRef.

InsideLength(mm)

InsideLength(mm)

BeltRef.

BeltRef.

BeltRef.

InsideLength(mm)

InsideLength(mm)

InsideLength(mm)

HD 285

HD 300

HD 315

HD 330

HD 345

7239

7620

8001

8382

8763

HD 360

HD 390

HD 400

HD 450

HD 500

9144

9906

10160

11430

12700

BeltRef.

InsideLength(mm)

HD 550

HD 600

HD 658

13970

15240

16713


BA

ND

ED B

ELTS

: H

E

HE 158

HE 162

HE 173

HE 180

HE 195

4013

4115

4394

4572

4953

5334

5715

6096

6477

6858

HE 210

HE 225

HE 240

HE 255

HE 270

HE 90

HE 110

HE 120

HE 128

HE 144

2286

2794

3048

3251

3658

BeltRef.

BeltRef.

InsideLength(mm)

InsideLength(mm)

BeltRef.

BeltRef.

BeltRef.

InsideLength(mm)

InsideLength(mm)

InsideLength(mm)

HE 285

HE 300

HE 315

HE 330

HE 345

7239

7620

8001

8382

8763

HE 360

HE 390

HE 400

HE 450

HE 500

9144

9906

10160

11430

12700

BeltRef.

InsideLength(mm)

HE 550

HE 600

HE 658

13970

15240

16713


25

BA

ND

ED B

ELTS

: H

SPZ

HSPZ 3150

HSPZ 3200

HSPZ 3250

HSPZ 3300

HSPZ 3350

HSPZ 3400

HSPZ 3450

HSPZ 3500

HSPZ 3550

HSPZ 3600

HSPZ 3650

HSPZ 3700

HSPZ 3750

HSPZ 3800

HSPZ 3850

HSPZ 3900

HSPZ 3950

HSPZ 4000

HSPZ 4050

HSPZ 4100

HSPZ 4150

HSPZ 4200

HSPZ 4250

HSPZ 4300

HSPZ 4350

HSPZ 4400

HSPZ 4450

HSPZ 4500

HSPZ 4550

HSPZ 4600

HSPZ 4650

HSPZ 4700

HSPZ 4750

HSPZ 4800

HSPZ 4850

HSPZ 4900

HSPZ 4950

HSPZ 5000

HSPZ 5050

HSPZ 5100

3150

3200

3250

3300

3350

3400

3450

3500

3550

3600

3650

3700

3750

3800

3850

3900

3950

4000

4050

4100

4150

4200

4250

4300

4350

4400

4450

4500

4550

4600

4650

4700

4750

4800

4850

4900

4950

5000

5050

5100

5150

5200

5250

5300

5350

5400

5450

5500

5550

5600

5650

5700

5750

5800

5850

5900

5950

6000

6050

6100

6150

6200

6250

6300

6350

6400

6450

6500

6550

6600

6650

6700

6750

6800

6850

6900

6950

7000

7050

7100

HSPZ 5150

HSPZ 5200

HSPZ 5250

HSPZ 5300

HSPZ 5350

HSPZ 5400

HSPZ 5450

HSPZ 5500

HSPZ 5550

HSPZ 5600

HSPZ 5650

HSPZ 5700

HSPZ 5750

HSPZ 5800

HSPZ 5850

HSPZ 5900

HSPZ 5950

HSPZ 6000

HSPZ 6050

HSPZ 6100

HSPZ 6150

HSPZ 6200

HSPZ 6250

HSPZ 6300

HSPZ 6350

HSPZ 6400

HSPZ 6450

HSPZ 6500

HSPZ 6550

HSPZ 6600

HSPZ 6650

HSPZ 6700

HSPZ 6750

HSPZ 6800

HSPZ 6850

HSPZ 6900

HSPZ 6950

HSPZ 7000

HSPZ 7050

HSPZ 7100

HSPZ 1168

HSPZ 1200

HSPZ 1250

HSPZ 1300

HSPZ 1350

HSPZ 1400

HSPZ 1450

HSPZ 1500

HSPZ 1550

HSPZ 1600

HSPZ 1650

HSPZ 1700

HSPZ 1750

HSPZ 1800

HSPZ 1850

HSPZ 1900

HSPZ 1950

HSPZ 2000

HSPZ 2050

HSPZ 2100

HSPZ 2150

HSPZ 2200

HSPZ 2250

HSPZ 2300

HSPZ 2350

HSPZ 2400

HSPZ 2450

HSPZ 2500

HSPZ 2550

HSPZ 2600

HSPZ 2650

HSPZ 2700

HSPZ 2750

HSPZ 2800

HSPZ 2850

HSPZ 2900

HSPZ 2950

HSPZ 3000

HSPZ 3050

HSPZ 3100

1168

1200

1250

1300

1350

1400

1450

1500

1550

1600

1650

1700

1750

1800

1850

1900

1950

2000

2050

2100

2150

2200

2250

2300

2350

2400

2450

2500

2550

2600

2650

2700

2750

2800

2850

2900

2950

3000

3050

3100

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)


HSPZ 7150

HSPZ 7200

HSPZ 7250

HSPZ 7300

HSPZ 7350

HSPZ 7400

HSPZ 7450

HSPZ 7500

HSPZ 7550

HSPZ 7600

HSPZ 7650

HSPZ 7700

HSPZ 7750

HSPZ 7800

HSPZ 7850

HSPZ 7900

HSPZ 7950

HSPZ 8000

HSPZ 8050

HSPZ 8100

HSPZ 8150

HSPZ 8200

HSPZ 8250

HSPZ 8300

HSPZ 8350

HSPZ 8400

HSPZ 8450

HSPZ 8500

HSPZ 8550

HSPZ 8600

HSPZ 8650

HSPZ 8700

HSPZ 8750

HSPZ 8800

HSPZ 8850

HSPZ 8900

HSPZ 8950

HSPZ 9000

HSPZ 9042

7150

7200

7250

7300

7350

7400

7450

7500

7550

7600

7650

7700

7750

7800

7850

7900

7950

8000

8050

8100

8150

8200

8250

8300

8350

8400

8450

8500

8550

8600

8650

8700

8750

8800

8850

8900

8950

9000

9042

BA

ND

ED B

ELTS

: H

SPB

HSPB 3650HSPB 3700HSPB 3750HSPB 3800HSPB 3850HSPB 3900HSPB 3950HSPB 4000HSPB 4050HSPB 4100HSPB 4150HSPB 4200HSPB 4250HSPB 4300HSPB 4350HSPB 4400HSPB 4450HSPB 4500HSPB 4550HSPB 4600HSPB 4650HSPB 4700HSPB 4750HSPB 4800HSPB 4850HSPB 4900HSPB 4950HSPB 5000HSPB 5050HSPB 5100HSPB 5150HSPB 5200HSPB 5250HSPB 5300HSPB 5350HSPB 5400HSPB 5450HSPB 5500

36503700375038003850390039504000405041004150420042504300435044004450450045504600465047004750480048504900495050005050510051505200525053005350540054505500

55505600565057005750580058505900595060006050610061506200625063006350640064506500655066006650670067506800685069006950700070507100715072007250730073507400



17781800185019001950200020502100215022002250230023502400245025002550260026502700275028002850290029503000305031003150320032503300335034003450350035503600

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)


HSPB 7450HSPB 7500HSPB 7550HSPB 7600HSPB 7650HSPB 7700HSPB 7750HSPB 7800HSPB 7850HSPB 7900HSPB 7950HSPB 8000HSPB 8050HSPB 8100HSPB 8150HSPB 8200HSPB 8250HSPB 8300HSPB 8350HSPB 8400HSPB 8450HSPB 8500HSPB 8550HSPB 8600HSPB 8650HSPB 8700HSPB 8750HSPB 8800HSPB 8850HSPB 8900HSPB 8950HSPB 9000HSPB 9050HSPB 9100HSPB 9144

74507500755076007650770077507800785079007950800080508100815082008250830083508400845085008550860086508700875088008850890089509000905091009144

26

BA

ND

ED B

ELTS

: H

SPA

HSPA 1700HSPA 1750HSPA 1800HSPA 1850HSPA 1900HSPA 1950HSPA 2000HSPA 2050HSPA 2100HSPA 2150HSPA 2200HSPA 2250HSPA 2300HSPA 2350HSPA 2400HSPA 2450

1700175018001850190019502000205021002150220022502300235024002450

2500255026002650270027502800285029002950300030503100315032003250



91495010001050110011501200125013001350140014501500155016001650

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)


HSPA 3300HSPA 3350HSPA 3400HSPA 3450HSPA 3500HSPA 3550HSPA 3600HSPA 3650HSPA 3700HSPA 3750HSPA 3800HSPA 3850HSPA 3900HSPA 3912

33003350340034503500355036003650370037503800385039003912

27

BA

ND

ED B

ELTS

: H

SPC

HSPC 5900HSPC 6000HSPC 6100HSPC 6200HSPC 6300HSPC 6400HSPC 6500HSPC 6600HSPC 6700HSPC 6800HSPC 6900HSPC 7000HSPC 7100HSPC 7200HSPC 7300HSPC 7400HSPC 7500HSPC 7600HSPC 7700HSPC 7800HSPC 7900HSPC 8000HSPC 8100HSPC 8200HSPC 8300HSPC 8400HSPC 8500HSPC 8600HSPC 8700HSPC 8800HSPC 8900HSPC 9000HSPC 9100HSPC 9200HSPC 9300HSPC 9400HSPC 9500

5900600061006200630064006500660067006800690070007100720073007400750076007700780079008000810082008300840085008600870088008900900091009200930094009500

9600970098009900100001010010200103001040010500106001070010800109001100011100112001130011400115001160011700118001190012000121001220012300124001250012600127001280012900130001310013200



2235230024002500260027002800290030003100320033003400350036003700380039004000410042004300440045004600470048004900500051005200530054005500560057005800

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)


HSPC 13300HSPC 13400HSPC 13500HSPC 13600HSPC 13700HSPC 13800HSPC 13900HSPC 14000HSPC 14100HSPC 14200HSPC 14300HSPC 14400HSPC 14500HSPC 14600HSPC 14700HSPC 14800HSPC 14900HSPC 15000HSPC 15100HSPC 15200HSPC 15300HSPC 15400HSPC 15500HSPC 15600HSPC 15700HSPC 15800HSPC 15900HSPC 16000HSPC 16100HSPC 16200HSPC 16300HSPC 16400HSPC 16500HSPC 16600HSPC 16688

1330013400135001360013700138001390014000141001420014300144001450014600147001480014900150001510015200153001540015500156001570015800159001600016100162001630016400165001660016688

BA

ND

ED B

ELTS

: H

3V

H3V 650

H3V 700

H3V 750

H3V 800

H3V 850

H3V 900

H3V 950

1651

1778

1905

2032

2159

2286

2413

2540

2667

2794

2921

3048

3175

3302

H3V 1000

H3V 1050

H3V 1100

H3V 1150

H3V 1200

H3V 1250

H3V 1300

H3V 335

H3V 350

H3V 400

H3V 450

H3V 500

H3V 550

H3V 600

851

889

1016

1143

1270

1397

1524

BeltReference

BeltReference

OutsideLength(mm)

OutsideLength(mm)

BeltReference

BeltReference

OutsideLength(mm)

OutsideLength(mm)


H3V 1350

H3V 1400

H3V 1500

H3V 1600

H3V 1650

H3V 1700

H3V 1780

3429

3556

3810

4064

4191

4318

4521

28

BA

ND

ED B

ELTS

: H

5V

H5V 850

H5V 900

H5V 950

H5V 1000

H5V 1060

H5V 1120

H5V 1180

H5V 1250

H5V 1320

2159

2286

2413

2540

2692

2845

2997

3175

3353

3556

3810

4064

4318

4572

4826

5080

5385

5690

H5V 1400

H5V 1500

H5V 1600

H5V 1700

H5V 1800

H5V 1900

H5V 2000

H5V 2120

H5V 2240

H5V 480

H5V 530

H5V 560

H5V 600

H5V 630

H5V 670

H5V 710

H5V 750

H5V 800

1219

1346

1422

1524

1600

1702

1803

1905

2032

BeltReference

BeltReference

OutsideLength(mm)

OutsideLength(mm)

BeltReference

BeltReference

OutsideLength(mm)

OutsideLength(mm)


H5V 2360

H5V 2500

H5V 2650

H5V 2800

H5V 3000

H5V 3150

H5V 3350

H5V 3550

H5V 3600

5994

6350

6731

7112

7620

8001

8509

9017

9144

BA

ND

ED B

ELTS

: H

8V

H8V 2400

H8V 2500

H8V 2600

H8V 2700

H8V 2800

H8V 2900

H8V 3000

H8V 3100

H8V 3200

H8V 3300

H8V 3400

H8V 3500

H8V 3600

H8V 3700

H8V 3800

6096

6350

6604

6858

7112

7366

7620

7874

8128

8382

8636

8890

9144

9398

9652

9906

10160

10414

10668

10922

11176

11430

11684

11938

12192

12446

12700

12954

13208

13462

H8V 3900

H8V 4000

H8V 4100

H8V 4200

H8V 4300

H8V 4400

H8V 4500

H8V 4600

H8V 4700

H8V 4800

H8V 4900

H8V 5000

H8V 5100

H8V 5200

H8V 5300

H8V 980

H8V 1000

H8V 1100

H8V 1200

H8V 1300

H8V 1400

H8V 1500

H8V 1600

H8V 1700

H8V 1800

H8V 1900

H8V 2000

H8V 2100

H8V 2200

H8V 2300

2489

2540

2794

3048

3302

3556

3810

4064

4318

4572

4826

5080

5334

5588

5842

BeltReference

BeltReference

OutsideLength(mm)

OutsideLength(mm)

BeltReference

BeltReference

OutsideLength(mm)

OutsideLength(mm)


H8V 5400

H8V 5500

H8V 5600

H8V 5700

H8V 5800

H8V 5900

H8V 6000

H8V 6100

H8V 6200

H8V 6300

H8V 6400

H8V 6500

H8V 6600

H8V 6640

13716

13970

14224

14478

14732

14986

15240

15494

15748

16002

16256

16510

16764

16866

29

PIX Cut Edge Moulded Cogged Belts

The effectiveness of raw edge cogged belts is evident

where the pulley diameters are extremely small, belt speed

requirement is high, high levels of power transmissions are

required, Operating temperatures are quite high, Usage of

wrapped construction belts is rendered expensive

proposition and impractical.

Raw edge belts are best suited for such conditions because

of the usage of high grade components that go into the

manufacturing of these belts.

Features :

Special top layer with fabric

The rigid layer on the top restricts top layer cracking and gives

uniform tension on cord ends. Top fabric gives better

support & protection from environment.

Tough Tensile Member For Greater Strength

Specially treated stabilised polyester cord provides high

tensile strength with minimum stretch which in turn gives V-

belt superior resistance to fatigue & shock loads.

Oil & Heat Resistant

Polychloroprene used throughout the belt provides the oil &

heat resistance properties to the belt. It also helps the V-belt

resist ozone, sunlight, weather & ageing.

Moulded Cogs

Moulded cogs allow the Raw edge cogged belts to operate

even over smaller diameter pulley at high speeds. The cogs

also help in reducing the bending stress apart from providing

the higher surface area for proper heat dissipation.

Polychloprene Cushion Rubber Compound

Ensures the best possible bond between the base

compound, the tension cord & rubber impregnated fabric

top surface that provides long service without cord

separation.

Fibre Filled Polychloroprene Base Compound

Gives increased power transmission capability, superior

transverse stiffness & high wear resistance.

Speed ratios up to 1:14 are possible

This eliminates the need for multi stage drives.

1. Special Fabric layer

2. Polychloroprene cushion rubber compound

3. Specially treated & stabilised polyester cord

4. Fibre filled polychloroprene

5. Moulded coggs for better flexibility

Construction

1

234

5

30

CLA

SSIC

AL

SEC

TIO

N :

ZX

ZX 70

ZX 75

ZX 80

ZX 85

ZX 90

ZX 95

ZX 100

ZX 105

ZX 110

ZX 115

1778

1905

2032

2159

2286

2413

2540

2667

2794

2921

3048

3175

3302

3429

3556

3683

3810

3937

4064

4191

ZX 120

ZX 125

ZX 130

ZX 135

ZX 140

ZX 145

ZX 150

ZX 155

ZX 160

ZX 165

ZX 23

ZX 25

ZX 30

ZX 35

ZX 40

ZX 45

ZX 50

ZX 55

ZX 60

ZX 65

584

635

762

889

1016

1143

1270

1397

1524

1651

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)


ZX 170

ZX 175

ZX 180

ZX 185

ZX 190

ZX 195

ZX 200

4318

4445

4572

4699

4826

4953

5080

CLA

SSIC

AL

SEC

TIO

N :

AX

AX 70

AX 75

AX 80

AX 85

AX 90

AX 95

AX 100

AX 105

AX 110

AX 115

1778

1905

2032

2159

2286

2413

2540

2667

2794

2921

3048

3175

3302

3429

3556

3683

3810

3937

4064

4191

AX 120

AX 125

AX 130

AX 135

AX 140

AX 145

AX 150

AX 155

AX 160

AX 165

AX 22

AX 25

AX 30

AX 35

AX 40

AX 45

AX 50

AX 55

AX 60

AX 65

559

635

762

889

1016

1143

1270

1397

1524

1651

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)


AX 170

AX 175

AX 180

AX 185

AX 190

AX 195

AX 200

4318

4445

4572

4699

4826

4953

5080

CLA

SSIC

AL

SEC

TIO

N :

BX

BX 70

BX 75

BX 80

BX 85

BX 90

BX 95

BX 100

BX 105

BX 110

BX 115

1778

1905

2032

2159

2286

2413

2540

2667

2794

2921

3048

3175

3302

3429

3556

3683

3810

3937

4064

4191

BX 120

BX 125

BX 130

BX 135

BX 140

BX 145

BX 150

BX 155

BX 160

BX 165

BX 21

BX 25

BX 30

BX 35

BX 40

BX 45

BX 50

BX 55

BX 60

BX 65

533

635

762

889

1016

1143

1270

1397

1524

1651

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)


BX 170

BX 175

BX 180

BX 185

BX 190

BX 195

BX 200

4318

4445

4572

4699

4826

4953

5080

CLA

SSIC

AL

SEC

TIO

N :

CX

CX 70

CX 75

CX 80

CX 85

CX 90

CX 95

CX 100

CX 105

CX 110

CX 115

1778

1905

2032

2159

2286

2413

2540

2667

2794

2921

3048

3175

3302

3429

3556

3683

3810

3937

4064

4191

CX 120

CX 125

CX 130

CX 135

CX 140

CX 145

CX 150

CX 155

CX 160

CX 165

CX 21

CX 25

CX 30

CX 35

CX 40

CX 45

CX 50

CX 55

CX 60

CX 65

533

635

762

889

1016

1143

1270

1397

1524

1651

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)

BeltReference

BeltReference

InsideLength(mm)

InsideLength(mm)


CX 170

CX 175

CX 180

CX 185

CX 190

CX 195

CX 200

4318

4445

4572

4699

4826

4953

5080

31

WED

GE

SEC

TIO

N :

XPZ

XPZ 1700XPZ 1800XPZ 1900XPZ 2000XPZ 2100XPZ 2200XPZ 2300XPZ 2400XPZ 2500XPZ 2600XPZ 2700XPZ 2800

170018001900200021002200230024002500260027002800

290030003100320033003400350036003700380039004000



5906007008009001000110012001300140015001600

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)


410042004300440045004600470048004900500051005117


WED

GE

SEC

TIO

N :

XPB

XPB 1800XPB 1900XPB 2000XPB 2100XPB 2200XPB 2300XPB 2400XPB 2500XPB 2600XPB 2700XPB 2800XPB 2900

180019002000210022002300240025002600270028002900

300031003200330034003500360037003800390040004100



60070080090010001100120013001400150016001700

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)

XPB 4200XPB 4300XPB 4400XPB 4500XPB 4600XPB 4700XPB 4800XPB 4900XPB 5000XPB 5100XPB 5140

42004300440045004600470048004900500051005140

WED

GE

SEC

TIO

N :

XPC

XPC 1800XPC 1900XPC 2000XPC 2100XPC 2200XPC 2300XPC 2400XPC 2500XPC 2600XPC 2700XPC 2800XPC 2900

180019002000210022002300240025002600270028002900

300031003200330034003500360037003800390040004100



60070080090010001100120013001400150016001700

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)

XPC 4200XPC 4300XPC 4400XPC 4500XPC 4600XPC 4700XPC 4800XPC 4900XPC 5000XPC 5100XPC 5163

42004300440045004600470048004900500051005163

WED

GE

SEC

TIO

N :

XPA

XPA 1700XPA 1800XPA 1900XPA 2000XPA 2100XPA 2200XPA 2300XPA 2400XPA 2500XPA 2600XPA 2700XPA 2800

170018001900200021002200230024002500260027002800

290030003100320033003400350036003700380039004000



5906007008009001000110012001300140015001600

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)

BeltReference

BeltReference

PitchLength(mm)

PitchLength(mm)


410042004300440045004600470048004900500051005125




32

WED

GE

SEC

TIO

N :

3V

X

3VX 7003VX 7503VX 8003VX 8503VX 9003VX 9503VX 10003VX 10503VX 11003VX 1150

1778190520322159228624132540266727942921

3048317533023429355636833810393740644191



610635762889101611431270139715241651

BeltReference

BeltReference

OutsideLength(mm)

OutsideLength(mm)

BeltReference

BeltReference

OutsideLength(mm)

OutsideLength(mm)

3VX 17003VX 17503VX 18003VX 18503VX 19003VX 19503VX 20003VX 2020

43184445457246994826495350805131


WED

GE

SEC

TIO

N :

5V

X


1778190520322159228624132540266727942921

3048317533023429355636833810393740644191



610635762889101611431270139715241651

BeltReference

BeltReference

OutsideLength(mm)

OutsideLength(mm)

BeltReference

BeltReference

OutsideLength(mm)

OutsideLength(mm)

5VX 17005VX 17505VX 18005VX 18505VX 19005VX 19505VX 20005VX 2030

43184445457246994826495350805156


PIX Cut Edge Plain Belts

1. Special Top fabric layer

2. Specially treated & stabilised polyester cord

3. Polychloroprene cushion rubber compound

4. Fibre filled polychloroprene base

5. Special bottom fabric layer

Construction

1

2345

33

Features:

Special top fabric layer

The rigid fabric layer on the top restricts top layer cracking

and gives uniform tension on cord ends. Top fabric

construction gives better support & protection from

environment.

Tough tensile member for greater strength

Specially treated stabilised polyester cord provides high

tensile strength with minimum stretch which in turns gives V-

belt superior resistance to fatigue & shock loads.

Oil & heat resistant

Polychloroprene used throughout the belt provides the oil &

heat resistance properties to the belt. It also helps the V-belt

resist ozone, sunlight, weather & ageing.

Polychloroprene cushion rubber compound

Ensures the best possible bond between the base

compound, the tension cord & the rubber impregnated

fabric top surface that provides long service without cord

separation.

Fibre filled polychloroprene base compound

Gives increased power transmissions capability, superior

transverse stiffness & high wear resistance.

Range

Sections

Same as that of Cut Edge Cogged belts

Size

Same as that of Cut Edge Cogged belts, maximum up to 200

inches

Oil & Heat Resistant

PIX AOH V-BELTSRange : Classical, Wedge & Narrow V-Belts

Continuous contact with oil & grease has harmful effect on belt life. The heat resistant properties of regular construction belts allow drive operations in ambient temerature upto 60°C (Wrap belts). Ambient temperature above 60°C may lead to premature ageing of the belt. For both these conditions PIX AOH Belts are to be used.

Its special oil resistant cover protects the belt from contamination. Also these belts have been developed to work in ambient temperature upto 100°C. PIX AOH belts are also anti-static.

PIX Belts with Aramid Tension CordAramid is an organic polyaramide fibre that is manufactured using complex chemical processes. They are generally used where the power transmission requirements are very critical, apart from space restrictions on the installtion and take up allowances permissible. Aramid is used as tension member in such cases because of its inherent & high tensile strength.

Cord Tensile Strengthlb/in2

PolyesterAramid

162000400000

% Elongationat break

144

PIX aramid construction belts are specially suggested where :

•High levels of power transmission are required

•There are restrictions on the drive width

•The installation & take up allowances are minimal •The drive is critical

Thus the usage of PIX aramid belts significantly increases the power transmissions with the same number. The drive design calculation associated with this belt is similar to the standard drive design procedure except that the higher power ratings have to be considered. For further information kindly call on our Technical Services Department.

Cushion layerAramid Cord

Fibre filled basecompound

Cover fabric

Dry Cover

PIX DC V-BELTS Range : Classical, Wedge & Narrow V-Belts

It is suitable for drives having clutch applications, lawn movers, chemical industries where contamination is not acceptable. Basically manufactured in Blue colour. Can also be supplied in green, brown, red, balck & white colours. Available in polyster as well as aramid constructions.

PIX AUTOMOTIVE BELTS PIX Automotive belts are specially designed to cater to the needs

of automotive industries. These belts are suitable to drive various

accessories in automobile such as charging system, water pump,

power steering pump, A/C compressors. The PIX automotive belts

are available in Wrap construction/ Cut Edge/ Ribbed.

Section

Top width (mm)

Thickness (mm)

Angle (deg)

9.5/AV10 12.5/AV13 X9.5/AVX10 X12.5/AVX13

9.5

8.0

40

12.5

10.0

40

10.0

8.0

36

13.0

10.0

36

BELTS WITH SPECIAL CONSTRUCTION

Fire Resistant & Anti-Static

PIX FRAS V-BELTS Range : Classical, Wedge & Narrow V-Belts

Certain working environments such as coal mines & sensitive petro

chemical installations require V-belts having fire resistant properties

in addition to normal anti-static properties.

PIX FRAS belts are suitable for such environments. This construction

is thoroughly tested during & after manufacure, to comply with all

aspects of IS-2494 Part - II & BS-3790. FRAS Belts are also certified

by ATEX.

Confoms to : II 2GD c IIB X (Test report no. IB-03-4-934) - ATEX

II 2GD c IIB X

34


PIX Profile BeltsIn some of the applications it is desired that the belt used

to transmit the power should also convey material.

In such cases, the V-belt needs to have a special

construction depending on the type of material to be

conveyed. PIX manufactures these type of belts to cater to

such appilcations.

NOTE : Other profiles can be manufactured

on request.

PT - 0

PT - 1

PT - 6 (B)

PT - 6 (C)

PT - 7

PT - HC

PT - 2TP

Patterns Height ofPattern

Pitch

Stdmm

Maxmm

3

3

-

-

-

8

6

5

5

15

11

7

12

-

10

FRACTIONAL HORSE POWER BELTS(FHP/M)

These belts are mainly used on Fractional Horse Power

motors installed mainly in domestic appliances.

Series

Top width (mm)

Thickness (mm)

Angle (deg)

Range La (inches)

2000

10

6.0

40

11” - 173”

LIGHT DUTY SINGLE V-BELTThese belts are used for a smaller sized machineries

installed in the household appliances. These belts are

available in three different sections to meet the varying

requirements.

Series

Top width (mm)

Thickness (mm)

Angle (deg)

Range La (inches)

3L

10

6

40

10.5”-160”

4L

13

8

40

15”-360”

4L

17

10

40

21”-220”

PT - 6

PT - 2TP

PT - 0PT - 7

35

PT - HC

Orange Colour Top Profile

DOUBLE COG BELTThis special construction allows the use of belt on small

pulley diametres due to increased flexibility.

HEAVY DUTY VARIABLE SPEED BELTS

Specially designed to withstand the high ambient

temperature & oily conditions, generally encountered

in adjustable speed applications.

DOUBLE POLY BELTThese belts are recommended to be used on

applications demanding clockwise & anti-clockwise

rotations. Belts can be used from both the sides. It

facilitates use of very small diameter pulleys.

ELASTICATED BELT (PJ & PH)

Specially designed poly belts of PJ & PH section for

washing machines. These belts are with elastic

properties which are useful in certain applications like

washing machines.


36

FREE SET CONCEPT

FEW GOOD REASONS FOR USING IT

PIX free set belts are built with exceptionally close belt

length tolerances by virtue of latest belt manufacturing

technology. Further PIX belt length remains matched

during storage and on the drive.

Install PIX belts on the pulleys by giving correct tensioning

(Ref. Table A, Page 90). Run the belts under full load for

approx. 24 hours. Stop the drive and check the tension. If

necessary retension the belts (Ref. Table A, Page 90).

Normally no further retensioning is required in Pix Free Set

Belts in future.

PIX FREE SET BELT TENSIONING

PIX’ FREE SET V-BELTS

• No length code

• Low variation in length tolerance

• Less Centre adjustment

• Low stretch

• Low variation in elongation within a

set of belts.

• Power transmitted more evenly

• Longer life

• Longer maintenance intervals

• Less inventory

All ‘PIX FREE SET’ V-Belts are produced in the above length Tolerance Range. However, V-Belts normally shrink during storage which varies due to varying climate conditions. This shrinkage is a reversible process and the FREE SET V-BELTS would resume their original length on fitment and after initial run. Also this does not affect the working performance of the FREE SET V-Belts in any way.

Tolerances maintained for FREE SET belts are more stringent than BS-3790.

Nominal Length Tolerance in Length(In mm)

Up to 1905 mm (75 inches)

Beyond 1905 mm (75 inches)Up to 3150 mm (124 inches)




+1

+2-

+3-

+4-

+6-

-

37

DRIVE DESIGN PROCEDURE FOR V-BELTS

To obtain the best performance from V-Belts,It is necessary to design the drive correctly.

The procedure for the same is as follows.

38

Calculate Speed Ratio (S )R

Speed Ratio (S ) = R

r. p. m. of faster shaft (R)

r. p. m. of slower shaft (r)

Select Service Factor (K)

Service factor is obtained from Table 1 on page 42

Design Power (P ) = Power (P) x Service Factor (K)d

Calculate Design Power (P )d

Belt cross section is obtained from charts I, II & III on pages43 to 45. When the point of intersection falls on or near the dividing line, feasibility of both cross sections shouldbe checked.

Select Belt Cross Section

Refer Tables 2 & 3 on pages 46 & 47 for selecting pulleypitch diameters. Try to avoid use of non standards pulleysbut in some cases, it is necessary if the exact ratios arenot covered by standard pulleys.

Select Pulley Pitch Diameters

Calculate Belt Pitch Length (Lp) andCentre Distance (C)

Belt Pitch Length (Lp) = 2C +1.57 (D+d) +(D-d)

4C

2

Where D & d are pitch diameters of larger & smaller pulleysrespectively.

If the Belt Pitch Length comes in a fraction, use next whole / round-off length. If there is a space constraint or centre distance limitation, use the same calculated length. If so, exact centre distance calculations are not required again.

STEP 1

STEP 2

STEP 3

STEP 4

STEP 5

STEP 6

Calculate the exact centre distance by the formula

C = A + A - B2

Where, A = - 0.3925 (D +d) and4L

B = (D - d)2

8

Refer power rating Tables from 4 to 26 on pages 48 to 83 for different belt sections.

Power rating per belt (P) = Rated power + Additional power for speed ratio

Determine Power Rating (P)

Refer tables 27 & 28 on page 84 for Arc of Contact Correction Factor & Belt Pitch Length Correction Factorrespectively.

Find Arc of Contact CorrectionFactor (Fc) & Belt Length correctionFactor (Fd)

If the number of belts comes in a fraction, use next wholenumber.

Find Number of Belts (N)

Number of Belts (N) = Pd

P x Fc x Fd

1) Smaller & larger pulley pitch diameters & number of grooves obtained.

SUMMARY

2) Number of belts along with size & section obtained.

STEP 7

STEP 8

STEP 9

STEP 10

DRIVE DESIGN EXAMPLE (CLASSICAL)

CONDITION 1 : Prime mover A. C. Motor; 75kw, 1450 r.p.m. (DRIVER)

CONDITION 2 : Reciprocating pump, 310 r.p.m., 18 hrs. per day.

CONDITION 3 : Approximate centre distance 1050 mm

39

STEPS FORMULAE CALCULATIONS

See above given condition 1 & 2

Smaller pulley of 212 mm pitch dia. with 10 groovesof “C” section.

Larger pulley of 990 mm pitch dia. with 10 groovesfo “C” section.

10 belts of “C” section each of 4120 mm pitch length

1044 mm

S = R/r = 1450/310 = 4.67R

K = 1.4

Pd = 75 x 1.4 = 105 kw

Belt section indicated is “C”

d = 212 mm, D = 990 mm

Lp = 2(1050) +1.57 (990+212) +(990 - 212)

4 x 1050Lp = 4131.25 mm

Standard Lp = 4120 mm

C = A + A - B2

4120

4A = - 0.3925 (990 +212)

= 1030 - 471.78 A = 558.22

(990 - 212)

8B = = 75660.5

C = 558.22 + (558.22) - (75660.5)2

C = 1044 mm

P = 10.94 kw + 1.48 kw

P = 12.42 kw

Fc = 0.88

Fd = 1.03

N = 105

12.42 x 0.88 x 1.03= 9.32 (say 10 belts)

2

2

Speed Ratio (S ) = R/rR

Service factor (K) from Table 1 on page 42

Arc of contact correction factor (Fc)from table 27 on page 84Belt pitch length correction factor (Fd)from table 28 on page 84

Design power (Pd) = P x K

Belt cross section refer chart I on page 43

Pulley pitch diameters from Table 2 page 46

Belt pitch length (Lp) & Centre dist. (C)

C = A + A - B2

A = - 0.3925 (D +d) 4L

B =

Lp = 2C + 1.57 (D + d) +(D - d)

2

4C

Choose the nearest standard Lp frompage 10.

(D - d)2

8

Power rating (P) = Rated power +Additional power for speed ratiofrom Table 9 on page 56

PdP x Fc x Fd

Number of belts (N) =

Summary :

1. Smaller pulley fitted to prime mover

2. Larger pulley fitted to reciprocating pump

3. Classical belts required

4. Centre Distance

STEP 1

STEP 2

STEP 3

STEP 4

STEP 5

STEP 6

STEP 7

STEP 8

STEP 9

STEP 10

DRIVE DESIGN EXAMPLE (WEDGE)

CONDITION 1 : Normal torque A. C. Electric Motor 6 kw, 1440 rpm (DRIVER)

CONDITION 2 : Centrifugal pump 720 rpm, continuous running

40





C = A + A - B2

A = - 0.3925 (D +d) 4L

B =

Lp = 2C + 1.57 (D + d) +(D - d)

2

4C


PdP x Fc x Fd

Smaller pulley of 80 mm pitch dia. With 4 groovesof “SPZ” section.

Larger pulley of 160 mm pitch dia. With 4 grooves

of “SPZ” section.

4 belts of “SPZ” section each of 1500 mm pitch length.

560 mm



Belt cross section refer chart II on page 44

Pulley pitch diameters from Table 2 page 46



(D - d)2

8

Power rating (P) = Rated power +Additional power for speed ratiofrom Table 13 on page 63


Summary :

1. Smaller pulley fitted to electric motor shaft

2. Larger pulley fitted to pump shaft

3. Wedge belts required

4. Centre distance

S = R/r = 1440/720 = 2R

K = 1.2

Pd = 6 x 1.2 = 7.2 kw

Belt section indicated is “SPZ”

Lp = 1480 mm


C = A + A - B2

1500

4A = - 0.3925 (160 +80)

= 375 - 94.2 A = 280.8

(160 - 80)

8B = = 800

C = 280.8 + (280.8) - (800)2

C = 560 mm

P = 1.79 kw + 0.23 kw = 2.02 kw

Fc = 0.98

Fd = 0.99

N = 7.2

2.02 x 0.98 x 0.99= 3.67 (say 4 belts)

2

Lp = 2(550) +1.57 (160+80) +(160 - 80)

4 x 550

2

d = 80 mm, D = 160 mm

STEP 1

STEP 2

STEP 7

STEP 3

STEP 4

STEP 5

STEP 6

STEP 8

STEP 9

STEP 10

DRIVE DESIGN EXAMPLE (CUT EDGE COGGED)CONDITION 1 : Prime mover A. C. Motor; 75 kw, 1450 r.p.m. (DRIVER)

CONDITION 2 : Reciprocating pump, 310 r.p.m., 18 hrs. per day.


41




C = A + A - B2

A = - 0.3925 (D +d) 4L

B =

Lp = 2C + 1.57 (D + d) +(D - d)

2

4C


PdP x Fc x Fd

Smaller pulley of 125 mm pitch diameter with 15 grooves of “XPB” section.

Larger pulley of 584 mm pitch diameter with15 grooves of “XPB” section.

15 belts of “XPB” section each of 3000 mm pitchlength.

915 mm


Belt cross section refer chart II on page 44

Pulley pitch diameters from Table 3, page 47



(D - d)2

8

Power rating (P) = Rated power +Additional power for speed ratiofrom Table 25 on page 80 & 81


Summary:

1. Smaller pulley fitted to prime mover

2. Larger pulley fitted to reciprocating pump

3. Cut Edge Cogged belts required

4. Centre distance

S = R/r = 1450/310 = 4.67R

K = 1.4

Pd = 75 x 1.4 = 105 kw

Belt section indicated is “XPB”

Fc = 0.93

Fd = 0.99

N = 105

8 x 0.93 x 0.99= 14.25 (say 15 belts)

Lp = 2(900) +1.57 (584+125) +(584 - 125)

4 x 900Lp = 2972 mm


C = A + A - B2

3000

4A = - 0.3925 (584 +125)

= 750 - 278.28 A = 471.72

(584 - 125)

8B = = 26335.125

C = 471.72 + (471.72) - (26335.125)2

C = 915 mm

P = 6.97 kw + 1.03 kw

P = 8 kw

2

2

d = 125 mm, D = 584 mm


STEP 1

STEP 2

STEP 7

STEP 3

STEP 4

STEP 5

STEP 6

STEP 8

STEP 9

STEP 10

TABLE 1

FOR SPEED - INCREASING DRIVES OF,Speed ratio 1.00 to 1.24 : Multiply service factor by 1.00Speed ratio 1.25 to 1.74 : Multiply service factor by 1.05Speed ratio 1.75 to 2.49 : Multiply service factor by 1.11Speed ratio 2.50 to 3.49 : Multiply service factor by 1.18Speed ratio 3.50 & over : Multiply service factor by 1.25

+ E.g. electric motors (a.c. start, delta start, d.c. shunt wound), internal combustion engines with four or more cylinders, all primemovers fitted with centrifugal clutches, dry or fluid couplings.

+ E.g. Electric motors (a.c. direct -on - line start, d.c. series & compound wound), internal combustion engines with less than fourcylinders.

SPECIAL CONDITIONS

1) For reversing drives, except where high torque is not present on starting, add 20% to the factors.2) Idler pulley on slack side (internal), no addition to the factors.3) Idler pulley on tight side (internal), add 0.1 to the factors.

NOTE 1 : The service factors in table 1 do not apply to light duty drives using Z or Y section belts; PIX should be consulted.

NOTE 2 : The use of an idler pulley on the outside of belt is not recommended.

SERVICE FACTORS FOR BELT DRIVES (SEE NOTE 1)

TYPE OF DRIVEN MACHINE SERVICE FACTOR

EXAMPLES

Class 1 : LIGHT DUTY

Agitators (uniform density), BlowersExhausts & fans (up to 7.5 kw), Centrifugalcompressors & pumps, Belt conveyors(uniformly loaded)

SOFT START + HEAVY START #

Class 2 : MEDIUM DUTY

Agitators & mixers (variable density), Blowers,Exhausts & fans (over 7.5 kw), Rotary compressors& pumps (other than centrifugal), Belt conveyors(not uniformly loaded), Generators & excitors, laundry machinery, line shafts, machine tools, printing machinery, saw mill & wood workingmachinery, screens (rotary).

Class 3 : HEAVY DUTY

Brick machinery, bucket elevators,compressors & pumps (reciprocating),conveyors (heavy duty), hoists, mills (hammer),pulverisers, punches, presses, shears, quarry plant,rubber machinery, screens (vibrating), textile machinery

Class 4 : EXTRA HEAVY DUTY

Crushers (gyratory jaw - roll)Mills (ball - rod - tube)

10 & UNDER

OVER 10TO 16

OVER16

10 & UNDER

OVER 10TO 16

OVER16

1.0

1.1

1.2

1.3

1.1

1.2

1.3

1.4

1.2

1.3

1.4

1.5

1.1

1.2

1.4

1.5

1.3

1.4

1.6

1.8

1.2

1.3

1.5

1.6

WORKING HOURS

42

43

A/A

XB/

BXC

/CX

DE

12

34

51

02

03

04

05

01

00

20

03

00

500

30

070

00

.75

DES

IGN

PO

WER

(Kw

)

NO

TE :

Z s

ectio

n b

elts

sho

uld

be u

sed

fo

r lo

w p

ow

er,

smal

l pul

ley

dia

mete

r ap

plic

atio

ns a

nd s

houl

d b

e s

ele

cte

d o

nly

whe

n p

ulle

y d

iam

ete

rsar

e s

mal

ler

than

the

reco

mm

end

ed

min

imum

fo

r A

sectio

n b

elts

.

CH

ART

I :

SEL

ECTI

ON

OF

V-BEL

TS C

RO

SS S

ECTI

ON

10

0

20

0

30

0

40

0

50

0

10

00

12

00

15

00

20

00

30

00

40

00

50

00

SPEED OF FASTER SHAFT (rpm)

44

CH

ARTI

I :

SEL

ECTI

ON

OF

V-BEL

TS C

RO

SS S

ECTI

ON

12

34

51

02

03

04

05

01

00

20

03

00

30

00

.75

DES

IGN

PO

WER

(Kw

)

40

0

10

0

20

0

30

0

40

0

50

0

10

00

12

00

15

00

20

00

30

00

40

00

50

00


SPZ

/ X

PZSP

A /

XPA

SPB

/ X

PBSP

C /

XPC

45

CH

ARTI

II :

SEL

ECTI

ON

OF

V-BEL

TS C

RO

SS S

ECTI

ON

12

34

51

02

03

04

05

01

00

20

03

00

30

00

.75

DES

IGN

PO

WER

(Kw

)

40

0

10

0

20

0

30

0

40

0

50

0

10

00

12

00

15

00

20

00

30

00

40

00

50

00


3V

/ 3

VX

5V

/ 5

VX

8V

/ 8

VX

TABLE 2 - STANDARD PULLEY DIAMETERS FOR FASTER SHAFT(V-BELTS)

8 Z A B 20 C 25 D E SPZ/3V SPA SPB/5V 19 SPC 8V

35

40

45

50

56

63

71

80

90

45

50

53

56

60

63

67

71

75

80

85

90

95

100

112

125

140

160

180

71

75

80

85

90

95

100

106

112

118

125

132

140

150

160

180

200

224

106

112

118

125

132

140

150

160

170

180

190

200

212

224

236

250

280

315

355

140

160

180

200

224

236

250

280

315

355

400

450

500

170

180

190

200

212

224

236

250

265

280

300

315

335

355

375

400

450

500

560

630

800

224

236

250

280

315

355

400

450

500

560

630

710

800

315

335

355

375

400

425

450

475

500

530

560

600

630

670

710

750

800

900

1000

400

500

560

630

670

710

750

800

860

900

950

1000

1120

1250

1400

1600

63

67

71

75

80

85

90

95

100

106

112

118

125

132

140

150

160

180

200

224

80

85

90

95

100

106

112

118

125

132

140

150

160

170

180

190

200

224

250

280

315

125

132

140

150

160

170

180

190

200

212

224

236

250

265

280

315

355

375

400

450

500

180

200

224

236

250

280

315

355

375

400

450

500

560

630

200

224

236

250

265

280

300

315

335

355

375

400

450

500

560

630

710

800

1000

315

335

355

375

400

425

450

475

500

530

560

600

630

670

710

750

800

46

TABLE 3 - STANDARD PULLEY DIAMETERS FOR FASTER SHAFT (CUT EDGE COGGED)

XPC

160

180

190

200

212

224

236

250

265

280

315

335

355

400

450

500

560

630

710

XPB/5VX

100

112

118

125

132

140

150

160

170

180

190

200

212

224

236

250

280

315

355

400

XPA

63

71

75

80

85

90

95

100

106

112

118

125

132

140

150

160

170

180

190

200

224

250

280

XPZ/3VX

50

56

60

63

71

80

85

90

95

100

112

125

140

160

180

200

CX

140

150

160

180

200

224

250

280

315

335

355

400

450

500

630

BX

90

100

106

112

118

125

132

140

160

180

190

200

212

224

250

280

315

AX

63

71

80

90

95

100

106

112

118

125

132

140

150

160

180

200

40

45

50

56

63

71

80

90

100

112

125

140

160

ZX

47

TABLE 4 Section 8Power Rating P (kw) for arc of contact 180

48

700950

14502850

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500260027002800290030003100320033003400350036003700380039004000410042004300440045004600470048004900500051005200530054005500560057005800590060006200640066006800700072007400760078008000

NRPM

Pitch diameter of the smaller pulley (mm)

0.120.150.190.28

0.020.040.060.080.090.100.120.130.140.150.160.170.180.190.200.200.210.220.230.230.240.250.250.260.260.270.280.280.280.290.290.300.300.310.310.310.320.320.320.330.330.330.330.340.340.340.340.340.350.360.350.350.350.350.350.350.350.350.350.350.350.350.350.350.350.350.350.340.340.33

35

0.150.180.250.37

0.030.050.070.090.110.130.150.160.180.190.200.220.230.240.250.250.270.280.290.300.310.320.330.340.350.360.360.370.380.380.300.400.400.410.420.420.430.430.440.440.450.450.460.460.470.470.470.480.480.490.490.490.490.500.500.500.510.510.510.510.510.520.520.520.520.520.520.520.520.52

40

0.180.220.300.47

0.030.060.090.110.140.160.180.200.210.230.250.270.280.300.310.330.340.350.370.380.390.400.410.430.440.450.460.470.480.490.500.510.520.520.530.540.550.560.560.570.580.590.590.600.610.610.620.620.630.630.640.640.650.650.660.680.670.670.670.680.680.690.700.700.700.710.710.710.710.71

45

0.210.260.360.57

0.040.070.100.130.160.180.210.230.250.270.290.310.330.350.370.390.400.420.440.450.470.480.500.510.520.540.550.560.580.590.600.610.620.630.640.650.670.680.680.690.700.710.720.730.740.750.750.760.770.780.780.790.800.800.810.810.820.830.830.840.840.850.860.870.870.880.880.890.890.89

50

0.250.310.430.68

0.050.090.120.160.190.220.250.270.300.320.350.370.390.420.440.460.480.500.520.540.560.570.590.610.630.640.660.670.690.700.720.730.750.760.770.790.800.810.820.840.850.860.870.880.890.900.910.920.930.940.950.960.970.970.980.991.001.001.011.021.031.041.051.061.061.071.081.081.081.08

56

0.290.360.500.81

0.051.101.141.180.220.250.290.320.350.380.410.440.460.490.520.540.570.590.610.630.660.680.700.720.740.760.780.800.820.840.850.870.890.900.920.940.950.970.981.001.011.021.041.051.061.081.091.101.111.121.131.141.151.161.171.181.191.201.201.211.221.241.251.261.271.271.281.281.281.29

63

0.330.430.590.95

0.060.120.170.210.250.300.330.370.410.440.480.510.540.570.600.630.660.690.720.740.770.800.820.840.870.890.920.940.960.981.001.021.041.061.081.101.121.141.151.171.191.201.221.231.251.261.281.291.301.311.331.341.351.361.371.381.391.401.411.411.431.441.451.461.471.481.481.481.481.48

71

0.440.560.681.26

0.080.160.220.280.340.390.440.490.540.590.630.680.720.760.800.840.880.920.950.991.021.061.091.121.161.191.221.251.281.301.331.361.381.411.431.461.481.501.521.551.571.591.611.621.641.661.671.691.701.721.731.741.761.771.781.791.801.801.811.821.831.831.841.841.841.831.821.811.791.77

9080

0.390.490.681.10

0.070.140.190.240.290.340.390.430.470.510.550.590.630.660.700.730.770.800.830.860.890.920.950.981.011.031.061.091.111.141.161.191.211.231.251.271.301.321.341.351.371.391.411.431.441.461.471.491.501.521.531.541.551.561.571.591.591.601.611.621.631.651.651.661.671.671.671.661.661.65

Additional Power(Kw) per belt for

speed ratio

0.000.000.000.01

0.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.020.020.020.020.020.020.020.02

1.01to

1.05

0.010.010.020.03

0.000.000.010.010.010.010.010.010.020.020.020.020.020.030.030.030.030.030.040.040.040.040.040.040.050.050.050.050.050.060.060.060.060.060.060.070.070.070.070.070.080.080.080.080.080.090.090.090.090.090.090.100.100.010.010.010.110.110.110.110.110.120.120.130.130.130.140.140.090.09

1.06to

1.26

0.010.020.030.05

0.000.000.010.010.010.010.010.010.020.020.020.020.020.030.030.030.030.030.040.040.040.040.040.040.050.050.050.050.050.060.060.060.060.060.060.070.070.070.070.070.080.080.080.080.080.090.090.090.090.090.090.100.100.010.010.110.110.110.110.110.120.120.130.130.130.140.140.140.150.15

1.27to

1.57

0.010.020.030.06

0.000.000.010.010.010.010.010.020.020.020.020.020.030.030.030.030.040.040.040.040.040.050.050.050.050.050.060.060.060.060.060.070.070.070.070.070.080.080.080.080.090.090.090.090.090.100.100.100.100.100.110.110.110.110.110.120.120.120.120.120.130.130.140.140.150.150.150.160.160.17

For>

1.57

TABLE 5 Section ZPower Rating P (kw) for arc of contact 180

700950

14502850

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500260027002800290030003100320033003400350036003700380039004000410042004300440045004600470048004900500051005200530054005500560058006000620064006600680070007200740076007800800082008400

NRPM


0.030.040.060.12

0.000.010.010.020.020.030.030.030.040.040.050.050.060.060.060.070.070.080.080.090.090.100.100.100.110.110.120.120.130.130.130.140.140.150.150.160.160.160.170.170.180.180.190.190.190.200.200.210.210.220.220.230.230.230.240.240.250.260.270.280.290.290.300.310.320.330.340.350.350.36

0.190.240.330.48

0.030.070.100.120.150.170.190.210.240.250.270.280.310.320.330.340.360.370.380.400.410.420.430.440.440.450.460.470.490.490.500.510.510.520.520.530.530.540.540.550.550.550.570.570.570.580.580.580.580.580.590.590.590.590.590.590.590.590.580.580.580.570.570.550.540.530.520.510.500.47

45

0.250.320.430.66

0.050.090.120.160.190.210.250.270.310.330.350.370.400.420.430.450.470.500.510.530.540.570.580.590.610.620.630.660.670.680.690.700.710.720.730.750.760.770.780.790.790.800.810.820.820.840.840.850.860.860.870.870.870.880.880.880.890.890.900.900.900.900.900.900.890.890.880.870.850.85

50

0.280.350.470.75

0.060.100.140.170.220.250.280.310.340.360.390.410.440.460.490.510.530.550.570.590.610.630.650.670.680.700.720.740.750.770.780.800.810.830.840.850.870.880.340.910.920.930.940.950.970.980.991.011.011.021.021.031.041.051.051.071.081.091.111.131.151.151.151.151.151.151.131.131.111.09

53

0.320.400.540.87

0.060.110.160.200.240.270.320.350.380.410.440.470.500.530.550.590.610.630.660.690.710.730.760.780.800.810.840.860.880.890.920.940.950.970.981.011.021.031.051.061.071.081.111.121.131.141.151.161.181.191.191.201.211.221.221.231.241.251.271.281.291.291.291.291.291.291.281.281.271.25

56

0.350.440.600.98

0.070.130.180.230.270.320.350.390.430.470.490.530.550.590.630.650.680.710.730.770.780.820.830.860.880.920.930.950.991.011.021.041.061.111.121.131.141.161.181.211.221.241.251.281.291.311.321.341.361.391.411.431.441.451.461.471.491.511.521.541.551.571.571.591.591.591.571.571.551.54

60

0.380.490.681.11

0.070.140.190.240.290.340.380.430.470.510.550.590.630.670.700.730.770.800.840.870.890.930.960.981.021.041.071.101.121.151.181.201.221.241.271.291.311.331.361.371.391.411.421.451.471.481.491.511.531.541.561.571.581.591.601.621.641.651.671.681.701.711.711.721.721.721.711.711.701.68

63

0.460.600.841.38

0.090.160.230.290.350.410.460.520.580.620.680.720.770.810.860.900.950.981.031.071.111.141.191.221.251.291.321.361.391.421.461.491.531.551.581.601.641.661.681.721.741.761.791.811.831.851.881.901.911.931.951.971.982.002.012.022.062.082.092.112.122.142.152.152.152.152.142.122.112.09

7167

0.410.530.741.19

0.080.150.210.260.310.360.410.460.510.550.590.650.670.730.750.780.820.850.890.930.960.991.031.051.081.131.151.171.221.241.251.291.321.341.371.391.421.441.471.491.511.531.561.591.611.631.651.681.691.731.751.761.781.811.821.831.851.881.911.931.951.961.971.971.971.971.961.951.931.91

0.030.040.060.11

0.000.010.010.020.020.030.030.030.040.040.050.050.050.060.060.070.070.070.080.080.080.090.090.100.100.100.110.110.120.120.120.130.130.130.140.140.150.150.150.160.160.170.170.170.180.180.180.190.190.200.200.200.210.210.220.220.230.240.250.250.260.270.280.280.290.300.310.310.320.32


speed ratio

0.000.000.010.01

0.000.000.000.000.000.000.000.000.000.000.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.030.030.030.030.030.030.030.030.030.030.030.030.030.040.040.040.040.040.04

1.01to

1.05

0.020.020.030.07

0.000.000.010.010.010.010.020.020.020.020.030.030.030.030.040.040.040.040.050.050.050.050.060.060.060.060.060.070.070.070.070.080.080.080.080.090.090.090.090.100.100.100.100.110.110.110.110.120.120.120.120.130.130.130.130.130.140.140.150.150.160.160.170.170.180.180.190.190.200.20

1.06to

1.26

1.27to

1.57

For>

1.57

0.510.640.861.44

0.100.170.240.310.380.430.510.540.630.650.740.750.790.840.890.950.981.031.061.121.141.181.231.271.311.341.371.411.461.481.521.561.591.621.651.681.711.751.771.811.831.861.891.931.951.992.012.052.072.092.112.112.142.152.182.192.222.242.262.272.282.312.312.312.282.282.262.242.222.19

75

0.550.721.011.67

0.100.190.270.350.420.500.550.620.690.850.810.870.930.981.041.081.141.191.241.291.341.391.441.481.531.571.601.651.701.731.771.811.841.891.921.951.992.022.062.082.112.152.172.202.232.252.272.292.322.342.262.262.412.422.442.452.492.512.532.542.552.572.572.572.552.552.532.512.492.45

80

0.580.751.041.74

0.110.120.290.370.440.520.580.650.720.770.830.890.961.021.061.141.171.221.281.351.391.431.481.521.571.621.661.711.751.791.841.881.931.962.022.042.082.142.162.192.232.282.312.342.372.422.442.472.522.542.562.562.582.592.612.622.632.652.682.692.692.692.682.672.642.632.602.582.58

85

0.660.851.201.99

0.120.230.320.410.500.580.660.730.810.880.961.031.101.161.221.291.361.411.471.541.591.651.711.751.811.861.911.972.012.062.102.152.192.242.282.322.362.402.432.472.512.542.582.602.632.672.692.712.752.772.792.792.832.852.872.882.902.932.952.962.962.962.952.942.922.892.862.832.83

90

49

TABLE 5 Section ZPower Rating P (kw) for arc of contact 180

700950

14502850

100200300400500600700800900

10001100120013001400150016001700180019002000210022002300240025002600270028002900300031003200330034003500360037003800390040004100420043004400450046004700480049005000510052005300540055005600580060006200640066006800700072007400

NRPM


0.020.020.030.07

0.000.000.010.010.010.010.020.020.020.020.030.030.030.030.040.040.040.040.050.050.050.050.060.060.060.060.060.070.070.070.070.080.080.080.080.090.090.090.090.100.100.100.100.110.110.110.110.120.120.120.120.130.130.130.130.130.140.140.150.150.160.160.170.170.18

0.030.040.060.12

0.000.010.010.020.020.030.030.030.040.040.050.050.060.060.060.070.070.080.080.090.090.100.100.100.110.110.120.120.130.130.130.140.140.150.150.160.160.160.170.170.180.180.190.190.190.200.200.210.210.220.220.230.230.230.240.240.250.260.270.280.290.290.300.310.32

0.000.000.010.01

0.000.000.000.000.000.000.000.000.000.000.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.030.030.030.030.030.030.030.030.030.030.030.030.030.04

0.680.881.232.04

0.130.240.330.440.520.610.680.760.840.890.991.051.121.211.261.311.391.441.521.551.621.681.781.811.891.911.972.022.062.122.192.222.312.342.392.422.452.482.542.592.622.662.722.752.792.832.882.922.993.043.063.063.093.113.133.143.163.173.193.193.173.163.133.093.08

95

0.871.131.592.64

0.160.290.420.540.660.770.870.971.071.181.281.371.461.551.641.721.811.891.972.052.122.192.272.342.412.472.542.612.672.732.792.852.902.963.013.063.113.153.203.243.283.323.363.393.423.453.483.503.533.553.573.583.603.623.623.633.643.633.623.593.563.513.463.393.31

112100

0.760.971.382.29

0.140.260.370.470.570.670.760.850.941.021.101.191.271.331.411.491.561.631.701.761.831.901.972.022.092.152.202.262.322.372.432.472.522.582.622.672.712.762.792.842.872.902.952.983.013.043.073.103.123.143.163.163.213.223.243.253.283.293.303.303.293.283.243.213.18

0.030.040.060.11

0.000.010.010.020.020.030.030.030.040.040.050.050.050.060.060.070.070.070.080.080.080.090.090.100.100.100.110.110.120.120.120.130.130.130.140.140.150.150.150.160.160.170.170.170.180.180.180.190.190.200.200.200.210.210.220.220.230.240.250.250.260.270.280.280.29


speed ratio

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57

0.911.151.622.66

0.160.300.430.550.670.780.910.981.081.191.301.401.461.551.651.771.851.942.022.152.222.282.352.412.432.492.552.612.672.732.792.902.952.993.043.083.123.203.283.353.383.423.483.503.523.553.583.593.613.61

125

1.061.341.873.01

0.280.400.500.590.720.851.061.151.271.381.501.611.711.821.922.022.112.212.302.392.482.562.652.732.792.852.912.973.033.093.153.213.253.293.323.363.393.433.463.49

140

1.171.562.163.41

0.420.520.650.700.851.001.171.331.471.611.741.882.002.122.232.352.462.572.672.782.872.963.053.143.203.263.313.373.433.493.543.603.613.633.643.653.663.673.683.69

160

1.331.582.323.69

0.480.500.700.800.971.141.331.511.561.611.651.701.942.182.422.662.782.903.013.133.223.313.393.483.533.583.623.673.723.773.813.863.863.863.853.85

180

50

TABLE 6 Section APower Rating P (kw) for arc of contact 180

700950

14502850

100200300400500600700800900

100011001200130014001500160017001800190020002100220023002400250026002700280029003000310032003300340035003600370038003900400041004200430044004500460047004800490050005100520053005400550056005700580059006000

NRPM


0.080.100.160.31

0.010.020.030.040.050.060.080.090.100.110.120.130.140.150.160.170.180.190.210.220.230.240.250.260.270.280.220.300.310.320.340.350.360.370.380.390.400.410.420.430.440.450.460.480.490.500.510.520.530.540.550.560.570.580.590.610.620.630.640.65

0.140.180.280.55

0.020.040.060.080.100.120.140.160.180.190.210.230.250.270.290.310.330.350.370.390.410.430.450.470.490.510.530.540.560.580.600.620.640.660.680.700.720.740.760.780.800.820.840.860.880.890.910.930.950.970.991.011.031.051.071.091.111.131.151.17

0.020.020.030.06

0.000.000.010.010.010.010.020.020.020.020.020.030.030.030.030.030.040.040.040.040.050.050.050.050.050.060.060.060.060.060.070.070.070.070.080.080.080.080.080.090.090.090.090.100.100.100.100.100.110.110.110.110.110.120.120.120.120.130.130.13

0.580.710.911.15

0.130.240.310.390.460.520.580.630.680.730.770.810.850.880.920.950.971.011.031.051.081.091.111.121.131.141.151.151.161.161.161.161.161.151.151.141.131.121.111.091.081.051.031.010.990.950.920.900.850.820.780.740.690.650.600.560.500.450.390.34

71

0.710.841.071.36

0.160.290.390.480.560.630.710.770.810.870.910.961.031.041.081.121.141.161.191.211.241.261.281.291.311.321.341.351.361.361.371.371.381.391.391.391.391.391.411.391.391.381.381.381.371.371.361.361.351.351.331.321.311.281.261.241.211.201.181.14

75

1.091.371.872.81

0.210.390.550.690.830.961.091.201.311.421.521.621.721.811.911.992.072.152.232.312.372.442.512.562.632.692.732.792.832.882.912.962.993.023.053.073.093.113.123.143.153.153.153.153.143.123.113.093.073.053.012.982.952.902.862.812.762.702.632.56

90

1.221.552.113.23

0.250.440.620.770.931.081.221.361.481.601.721.841.952.062.162.262.352.452.542.632.712.792.872.933.013.083.143.203.263.303.363.403.443.483.523.553.573.603.623.633.643.653.653.653.653.643.633.613.583.563.533.493.463.423.363.303.253.183.113.04

95

1.341.712.353.64

0.270.480.670.851.031.191.341.501.651.781.922.052.172.302.412.532.632.742.842.953.043.143.213.303.383.463.533.613.663.733.793.843.893.933.984.014.044.074.104.114.134.144.144.144.144.134.124.084.084.044.013.983.933.883.823.763.703.623.543.46

100

1.501.922.644.11

0.290.530.750.951.141.321.501.671.841.992.152.302.442.582.712.842.973.093.203.333.433.543.643.733.833.914.004.084.164.224.294.354.404.464.504.554.584.614.654.674.684.694.704.704.694.684.674.614.614.584.554.504.454.394.324.244.174.093.993.89

106

0.120.160.250.49

0.020.030.050.070.090.100.120.140.160.170.190.210.220.240.260.280.290.310.330.350.360.380.400.420.430.450.470.480.500.520.540.550.570.590.610.620.640.660.670.690.710.730.740.760.780.800.810.830.850.870.880.900.920.930.950.970.991.001.021.04


speed ratio

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57

0.821.021.361.96

0.170.310.430.540.640.730.820.910.991.061.131.201.271.331.391.441.501.561.601.651.691.741.781.811.851.881.921.941.971.992.022.032.052.062.072.082.082.082.092.082.082.072.072.062.042.032.001.981.961.931.891.861.831.781.741.691.651.591.531.48

80

0.891.111.492.20

0.190.330.460.570.690.790.890.981.061.161.231.321.391.461.531.591.651.721.771.841.891.941.982.032.072.122.142.192.212.242.282.292.322.352.362.372.382.392.412.412.422.422.422.422.412.412.392.382.372.362.352.332.312.292.262.222.192.142.092.03

85

51

TABLE 6 Section APower Rating P (kw) for arc of contact 180

700950

14502850

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500260027002800290030003100320033003400350036003700380039004000410042004300440045004600470048004900500051005200530054005500

NRPM


0.080.100.160.31

0.010.020.030.040.050.060.080.090.100.110.120.130.140.150.160.170.180.190.210.220.230.240.250.260.270.280.220.300.310.320.340.350.360.370.380.390.400.410.420.430.440.450.460.480.490.500.510.520.530.540.550.560.570.580.59

0.140.180.280.55

0.020.040.060.080.100.120.140.160.180.190.210.230.250.270.290.310.330.350.370.390.410.430.450.470.490.510.530.540.560.580.600.620.640.660.680.700.720.740.760.780.800.820.840.860.880.890.910.930.950.970.991.011.031.051.07

0.020.020.030.06

0.000.000.010.010.010.010.020.020.020.020.020.030.030.030.030.030.040.040.040.040.050.050.050.050.050.060.060.060.060.060.070.070.070.070.080.080.080.080.080.090.090.090.090.100.100.100.100.100.110.110.110.110.110.120.12

1.662.122.934.58

0.310.580.821.041.251.461.661.852.032.212.372.542.702.863.013.163.293.433.563.703.823.934.044.164.264.364.454.544.634.704.774.854.914.965.025.065.115.145.175.205.215.225.235.225.225.205.175.125.125.075.034.974.914.844.76

112

1.992.553.555.56

0.370.680.971.241.501.751.992.222.442.652.873.073.273.463.643.823.994.164.324.484.634.774.915.045.165.295.405.515.605.705.785.875.946.006.066.126.156.186.226.246.256.256.246.236.206.176.146.036.035.96

125118

1.812.323.215.04

0.350.630.901.141.371.591.812.022.222.422.602.792.973.143.303.463.623.773.924.054.194.324.454.574.684.794.895.005.085.175.255.325.395.455.515.565.605.635.675.695.705.715.715.715.705.685.645.615.575.515.455.385.315.225.12

0.120.160.250.49

0.020.030.050.070.090.100.120.140.160.170.190.210.220.240.260.280.290.310.330.350.360.380.400.420.430.450.470.480.500.520.540.550.570.590.610.620.640.660.670.690.710.730.740.760.780.800.810.830.850.870.880.900.920.930.95


speed ratio

2.162.783.886.06

0.400.751.061.361.641.902.162.422.672.903.123.353.563.773.984.174.364.554.724.895.055.215.355.505.635.775.896.006.106.206.296.386.456.526.596.636.686.706.726.746.746.736.726.706.666.626.566.426.426.33

2.363.054.246.61

0.440.811.151.481.782.082.362.642.913.173.423.663.904.134.364.574.774.975.165.355.535.705.866.016.166.296.436.556.666.766.856.947.027.087.137.187.227.257.267.267.267.247.207.167.11

2.613.364.697.26

0.480.901.271.621.972.302.612.923.213.513.794.054.314.574.825.055.295.505.715.916.106.296.476.636.796.947.087.207.317.437.527.607.677.737.787.827.847.857.857.837.817.767.717.647.55

2.923.685.147.87

0.530.971.391.782.152.512.923.203.533.844.144.454.735.015.285.535.786.016.256.466.686.877.067.247.397.557.697.827.938.048.138.108.278.328.368.388.388.388.368.31

3.214.316.058.99

0.621.131.622.082.522.933.213.744.124.494.855.205.535.856.166.456.747.017.277.527.747.958.158.348.518.678.818.949.049.139.209.259.289.309.30

132 140 150 160 1801.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57

3.564.596.48

10.06

0.821.351.822.122.593.053.563.944.354.755.165.565.936.316.687.057.367.677.988.298.568.839.099.369.519.669.819.97

10.1210.2710.4210.57

200

4.015.217.45

1.021.632.012.452.983.514.014.514.985.455.926.396.817.227.648.058.408.749.099.439.71

10.0010.2810.56

224

52

TABLE 7 Section BPower Rating P (kw) for arc of contact 180

700950

14502850

100200300400500600700800900

10001100120013001400150016001700180019002000210022002300240025002600270028002900300031003200330034003500360037003800390040004100420043004400450046004700480049005000

NRPM


0.170.230.350.69

0.020.050.070.100.120.140.170.190.220.240.270.290.310.340.360.390.410.430.460.480.510.530.560.580.600.630.650.680.700.720.750.770.800.820.840.870.890.920.940.970.991.011.041.061.091.111.131.161.181.21

0.300.410.631.24

0.040.090.130.170.220.260.300.350.390.430.480.520.560.610.650.690.740.780.820.870.910.961.001.041.091.131.171.221.261.301.351.391.431.481.521.561.611.651.691.741.781.821.871.911.952.002.042.082.132.17

0.030.050.070.14

0.000.010.010.020.020.030.030.040.040.050.050.060.060.070.070.080.080.090.090.100.100.110.110.120.120.13.0130.140.140.140.150.150.160.160.170.170.180.180.190.190.200.200.210.210.220.220.230.230.240.24

1.361.611.972.36

0.340.590.780.961.111.231.361.461.551.651.741.811.871.931.992.032.092.142.162.192.232.262.272.282.292.312.332.352.382.262.192.162.142.061.991.941.891.861.841.791.771.711.691.671.651.611.581.561.551.54

106

1.632.012.613.28

0.360.630.871.081.281.461.631.791.942.082.212.332.442.552.652.752.842.922.983.053.103.153.193.223.253.273.283.283.283.273.253.213.173.123.073.002.932.852.752.652.542.422.292.151.991.831.651.471.281.07

112

2.152.683.584.81

0.450.801.111.401.661.912.152.382.592.782.983.163.333.503.643.803.934.054.174.284.384.474.544.614.684.724.764.804.824.824.824.814.794.744.704.644.574.484.394.284.154.023.863.713.523.333.122.902.672.42

125118

1.772.192.983.76

0.380.680.921.181.391.571.771.982.122.422.582.692.882.933.083.163.283.363.413.483.553.623.653.693.723.743.753.763.763.773.773.763.763.753.733.713.693.653.623.523.413.383.283.163.082.882.812.422.222.05

0.270.370.561.10

0.040.080.120.150.190.230.270.310.350.390.420.460.500.540.580.620.660.700.730.770.810.850.890.950.971.001.041.081.121.161.201.241.271.311.351.391.431.471.511.551.581.621.661.701.741.781.821.851.891.93


speed ratio

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57

2.433.054.085.59

0.500.891.241.561.872.162.432.682.933.173.393.603.803.994.174.354.504.654.804.935.045.155.255.345.415.485.535.575.605.625.625.615.595.565.515.455.375.285.175.064.924.774.604.424.224.003.773.533.262.97

2.743.454.666.45

0.550.991.391.762.102.432.743.043.323.593.854.094.324.554.764.965.155.325.505.655.795.926.046.146.246.316.386.426.476.496.506.496.476.446.386.316.236.126.015.865.715.535.355.144.914.894.854.75

3.143.965.377.47

0.621.121.571.992.392.773.143.483.814.114.424.714.985.255.495.735.956.166.356.536.706.856.997.127.227.327.397.457.497.517.527.517.487.447.377.297.187.066.916.746.566.356.115.855.58

132 140 150

53

TABLE 7 Section BPower Rating P (kw) for arc of contact 180

700950

14502850

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500260027002800290030003100320033003400350036003700380039004000

NRPM


0.170.230.350.69

0.020.050.070.100.120.140.170.190.220.240.270.290.310.340.360.390.410.430.460.480.510.530.560.580.600.630.650.680.700.720.750.770.800.820.840.870.890.920.940.97

0.300.410.631.24

0.040.090.130.170.220.260.300.350.390.430.480.520.560.610.650.690.740.780.820.870.910.961.001.041.091.131.171.221.261.301.351.391.431.481.521.561.611.651.691.74

0.030.050.070.14

0.000.010.010.020.020.030.030.040.040.050.050.060.060.070.070.080.080.090.090.100.100.110.110.120.120.13.0130.140.140.140.150.150.160.160.170.170.180.180.190.19

3.524.476.068.44

0.681.241.762.232.683.113.523.914.284.644.985.315.625.926.206.486.736.967.187.397.587.767.918.048.168.268.358.408.458.478.478.468.428.358.268.158.027.877.687.47

160

3.894.966.759.33

0.751.381.942.462.973.443.894.334.755.165.545.916.266.596.917.217.497.768.008.238.448.628.798.939.069.169.259.319.359.369.359.319.249.159.048.908.728.538.298.03

170

4.655.938.09

10.92

0.891.622.302.933.534.104.655.185.696.176.637.077.497.908.278.508.959.269.559.81

10.0410.2510.4410.5910.7110.8110.8810.9110.9210.8910.8410.7410.6010.4410.24

190180

4.285.457.43

10.15

0.811.502.112.703.253.774.284.765.235.676.096.496.897.257.597.928.238.518.799.039.259.459.649.799.91

10.0210.1010.1410.1610.1610.1310.07

9.989.869.70

0.270.370.561.10

0.040.080.120.150.190.230.270.310.350.390.420.460.500.540.580.620.660.700.730.770.810.850.890.950.971.001.041.081.121.161.201.241.271.311.351.391.431.471.511.55


speed ratio

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57

5.036.418.73

11.62

0.961.752.483.163.814.435.035.606.156.677.177.658.108.538.939.319.669.99

10.2910.5610.8011.0211.2011.3511.4711.5511.6111.6211.5911.5411.4411.3111.1310.9110.65

5.476.979.49

12.34

1.031.892.683.434.154.825.476.096.697.267.808.328.819.279.70

10.1110.4810.8411.1411.4311.6711.8812.0612.2012.3012.3612.3912.3612.3112.20

5.917.54

10.2312.96

1.112.042.893.714.485.215.916.597.237.848.438.989.50

10.0010.4610.8911.2811.6411.9612.2412.5012.6912.8612.9813.0613.0913.0713.0112.8912.73

6.358.09

10.9613.45

1.192.193.113.984.815.596.357.077.768.429.049.63

10.1910.7011.1911.6412.0512.4112.7413.0213.2613.4513.6013.6813.7313.7213.6613.5413.3513.12

6.858.76

11.84

1.282.353.364.295.186.046.857.628.379.089.74

10.3710.9611.5112.0112.4912.9013.2713.6013.8714.0914.2614.3714.4214.41

7.9110.0513.42

1.472.723.874.955.986.977.918.809.65

10.4511.2011.9012.5513.1513.6814.1714.5914.9415.2415.4615.6115.6915.6915.6115.44

200 212 224 236 250 280

8.2310.5614.16

1.632.753.935.116.167.218.239.24

10.0810.9111.7512.5813.1913.8014.4115.0215.3515.6916.0216.35

315

9.4612.0615.91

2.323.114.515.917.138.359.46

10.5611.5812.5913.6114.6215.1315.6316.1416.64

355

54


700950

14502850

50100150200250300350400450500550600650700750800850900950

10001050110011501200125013001350140014501500155016001650170017501800185019001950200020502100215022002250230023502400245025002550260026502700275028002850290029503000

NRPM


2.833.464.415.02

0.360.640.891.111.331.521.721.892.062.222.392.542.692.832.963.093.223.343.463.573.683.783.893.994.074.164.244.334.414.484.554.614.684.734.804.844.894.944.975.015.045.075.095.115.135.145.155.155.155.155.145.135.115.095.075.035.024.964.924.87

140

3.604.435.726.61

0.430.781.091.381.641.902.142.382.592.812.013.223.413.603.773.944.114.284.434.594.734.875.015.145.275.395.515.625.725.825.926.026.106.186.256.336.396.466.516.576.616.656.696.726.746.766.776.786.786.786.776.766.746.716.676.646.616.546.496.43

160

4.345.386.987.87

0.520.931.301.641.972.272.562.853.123.383.633.884.114.344.564.774.985.185.385.565.755.926.096.256.426.566.716.856.987.107.217.337.437.547.627.717.807.867.947.998.058.098.138.168.198.208.218.218.218.198.188.148.108.068.007.947.877.807.717.61

200

5.086.318.168.81

0.591.071.501.902.282.642.983.323.633.944.234.534.815.085.345.585.836.076.316.516.736.937.147.327.517.687.858.008.168.318.438.568.688.798.909.009.089.169.229.299.339.379.419.439.449.459.449.439.409.369.319.269.199.129.028.928.818.688.558.41

224

5.937.359.499.45

0.681.231.732.202.653.073.473.864.234.594.955.285.615.936.236.526.817.107.357.617.868.108.338.558.768.959.159.339.499.669.819.94

10.0710.1810.2810.3810.4710.5310.5910.6410.6810.7010.7110.7110.6910.6710.6310.5710.5110.4210.3210.2210.10

9.969.819.639.459.269.048.80

236

6.347.87

10.13

0.721.321.852.352.833.273.724.134.534.915.295.666.116.346.676.997.297.597.878.158.418.668.919.149.359.579.769.95

10.1310.2910.4410.5810.7410.8210.9211.0211.0911.1611.2211.2411.2611.2611.2611.2411.2111.1611.0911.0210.9210.8110.6810.5310.3710.2110.02

250

6.838.47

10.83

0.781.411.992.533.033.523.994.444.875.295.696.086.466.837.187.527.848.168.478.769.049.319.569.81

10.0310.2510.4510.6510.8310.9911.1511.2911.4011.5111.6111.7111.7611.8211.8511.8611.8711.8511.8211.7711.7111.6311.5211.4011.2811.12

280

8.9611.0313.62

1.021.852.603.323.994.635.255.846.426.977.488.008.498.969.419.84

10.2610.6511.0310.3810.7212.0312.3212.5912.8413.0713.2713.4613.6213.7513.8613.9414.0114.0414.0414.0213.9813.9013.7913.6513.4913.2913.0613.8013.51

355315

7.839.69

12.21

0.891.612.282.893.484.044.585.105.596.076.536.997.417.838.238.628.979.349.69

10.0110.3110.6210.8911.1611.4011.6311.8512.0412.2112.3812.5212.6512.7412.8312.9012.9512.9712.9712.9612.9312.8612.7912.6812.5512.4012.2312.0311.8011.5611.29


speed ratio

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57

10.2012.4514.91

1.162.112.973.794.565.295.996.677.327.958.549.129.67

10.2010.6911.1711.6212.0512.4512.8213.1813.4913.7814.0514.2814.4814.6614.8014.9114.9915.0315.0315.0114.9514.8414.7114.5314.3114.0513.76

0.040.050.070.15

0.000.010.010.010.010.020.020.020.020.030.030.030.030.040.040.040.040.050.050.050.050.060.060.060.060.070.070.070.070.080.080.080.080.090.090.090.090.100.100.100.110.110.110.110.120.120.120.120.130.130.130.130.140.140.140.140.150.150.150.15

0.180.240.370.73

0.010.030.040.050.060.080.090.100.120.130.140.150.170.180.190.210.220.230.240.260.270.280.290.310.320.330.350.360.370.380.400.410.420.440.450.460.470.490.500.510.530.540.550.560.580.590.600.620.630.640.650.670.680.690.710.720.730.740.760.77

0.290.390.591.17

0.020.040.060.080.100.120.140.160.180.210.230.250.270.290.310.330.350.370.390.410.430.450.470.490.510.530.550.570.590.620.640.660.680.700.720.740.760.780.800.820.840.860.880.900.920.940.960.981.011.031.051.071.091.111.131.151.171.191.211.23

0.320.440.671.31

0.020.050.070.090.120.140.160.180.210.230.250.280.300.320.350.370.390.420.440.460.480.510.530.550.580.600.620.650.670.690.710.740.760.780.810.830.850.880.900.920.950.970.991.011.041.061.081.111.131.151.181.201.221.251.271.291.311.341.361.38

180 400

12.4315.2718.65

1.602.453.064.355.246.146.997.928.709.57

10.2911.0511.7412.4313.1113.8014.2914.7815.2715.7616.2416.7317.2217.7117.9018.0918.2718.4618.6518.8419.0219.21

450

14.0417.03

2.042.933.684.986.007.027.999.069.93

10.9111.7012.5413.2914.0414.7915.5416.0416.5317.0317.5318.0218.5219.0119.51

500

16.4219.05

3.674.525.616.757.888.97

10.1511.1312.2213.0914.0514.8415.6316.4217.2117.6718.1318.5919.0519.5119.9720.4320.89

55

TABLE 9 Section CPower Rating P (kw) for arc of contact 180

700950

14502850

50100150200250300350400450500550600650700750800850900950

1000105011001150120012501300135014001450150015501600165017001750180018501900195020002050210021502200225023002350240024502500255026002650270027502800285029002950300030503100315032003250

NRPM


4.745.877.587.93

0.561.001.401.772.132.472.783.103.393.683.964.224.484.744.985.225.445.665.876.086.286.476.656.836.997.157.517.447.587.727.837.958.058.168.248.338.408.468.538.578.618.648.668.678.678.668.658.628.598.548.488.428.448.258.168.047.937.797.657.507.347.166.976.776.55

180

5.947.439.70

10.30

0.661.211.702.172.613.033.443.834.224.594.945.285.625.946.266.566.877.157.437.707.968.218.458.688.909.129.329.529.709.88

10.0510.2010.3410.4810.6110.1710.8210.9110.9911.0611.1211.1611.1911.2111.2211.2211.2011.1711.1311.0811.0010.9310.8310.7210.5910.4610.3010.13

9.959.759.539.309.068.808.52

200

6.668.35

10.9411.50

0.741.331.892.402.913.383.834.274.705.125.525.916.296.667.027.377.718.038.358.658.959.249.519.78

10.0310.2710.5010.7310.9411.1411.3211.5011.6711.8111.9612.0912.2012.3012.3912.4612.5312.5712.6112.6312.6312.6212.6012.5612.5112.4412.3612.2512.1412.0011.8511.6911.5011.3011.0810.8410.8110.7510.6310.5110.04

212

7.379.25

12.1412.51

0.801.462.072.653.192.724.224.715.195.656.106.546.967.377.778.168.548.909.259.609.92

10.2510.5510.8511.1311.4011.6611.9112.1412.3612.5712.7612.9413.1013.2613.4013.5113.6313.7213.8013.8613.9013.9313.9513.9413.9313.8913.8413.7713.6713.5713.4413.2913.1312.9412.7412.5112.2612.0611.71

224

8.0710.1413.30

0.861.592.252.883.484.054.615.165.676.186.687.157.628.078.528.959.369.75

10.1410.5210.8911.2411.5711.9012.2112.5112.7913.0513.3013.5513.7713.9814.1814.3514.5114.6614.7814.8914.9815.0615.1215.1615.1815.1815.1615.1315.0714.9914.9014.7714.6414.4814.2914.0913.86

236

8.8811.1714.64

0.951.732.463.153.814.455.065.666.246.797.347.888.398.889.389.85

10.3010.7411.1711.5911.9912.3812.7513.1013.4413.7714.0714.3514.6414.8915.1315.3515.5515.7415.9116.0516.1816.2916.3816.4416.4916.5216.5216.5016.4516.3916.3016.1916.0515.89

250

9.7412.2516.06

1.021.882.693.444.174.865.546.206.837.448.048.639.209.74

10.2810.8011.3011.7812.2512.7213.1513.5713.9714.3514.7215.0715.4015.7116.0616.2816.5316.7616.9717.1517.3117.4617.5917.6817.7617.8117.8317.8317.8117.7617.6717.5717.4317.2717.0816.86

265 280

10.5913.3217.31

1.102.042.913.734.525.286.026.737.428.108.759.38

10.0010.5911.1811.7412.2912.8113.3213.8114.2814.7315.6015.5815.9716.3416.6817.0117.3117.6017.8618.0918.3018.4818.6518.7718.8818.9619.0219.0419.0419.0118.9318.8418.72


speed ratio

0.080.110.160.32

0.010.010.020.020.030.030.040.050.050.060.060.070.070.080.080.090.100.100.110.110.120.120.130.140.140.150.150.160.160.170.180.180.190.190.200.200.210.220.220.230.230.240.240.250.250.260.270.270.280.280.290.290.300.310.310.320.320.330.330.340.350.350.360.360.37

0.400.540.821.61

0.030.060.080.110.140.170.200.230.250.280.310.340.370.400.420.450.480.510.540.570.590.620.650.680.710.740.760.790.820.850.880.910.930.960.991.021.051.071.101.131.161.191.221.241.271.301.331.361.391.411.441.471.501.531.561.581.611.641.671.701.731.751.781.811.84

0.630.861.312.58

0.050.090.140.180.230.270.320.360.410.450.500.540.590.630.680.720.770.810.860.910.951.001.041.091.131.181.221.271.311.361.401.451.491.541.581.631.671.721.771.811.861.901.951.992.042.082.132.772.222.262.312.352.402.442.492.532.582.632.672.722.762.812.852.902.94

0.710.971.482.90

0.050.100.150.200.250.310.360.410.460.510.560.610.660.710.760.810.870.920.971.021.071.121.171.221.271.321.371.42.1.481.531.581.631.681.731.781.831.881.931.982.042.092.142.192.242.292.342.392.442.492.542.602.652.702.752.802.852.902.953.003.053.103.153.213.263.31

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57

4.184.926.137.28

0.550.981.381.722.032.352.582.823.093.313.523.723.944.184.284.434.654.754.925.055.195.345.445.555.695.795.926.096.136.196.296.376.456.536.596.666.726.786.866.896.926.987.027.077.097.137.157.177.197.227.227.257.297.317.387.347.287.227.187.057.016.926.856.696.42

170

5.236.518.519.15

0.591.081.521.922.312.683.053.383.693.094.324.634.925.235.485.766.046.266.516.746.987.217.427.637.827.998.188.368.518.678.828.989.119.219.339.459.559.639.719.789.829.889.929.969.979.989.979.979.959.929.899.839.759.699.559.219.158.998.728.658.388.217.847.747.59

190

56

TABLE 9 Section CPower Rating P (kw) for arc of contact 180

700950

14502850

50100150200250300350400450500550600650700750800850900950

10001050110011501200125013001350140014501500155016001650170017501800185019001950200020502100215022002250

NRPM


11.7214.7118.98

1.212.242.204.114.985.836.647.438.208.959.67

10.3711.0611.7212.3612.9813.5814.1514.7115.2515.7616.2416.7217.1617.5717.9718.3318.6718.9819.2719.5319.7619.9620.1320.2720.3820.4520.5020.5120.4920.4220.3320.1920.0219.82

300


speed ratio

12.5415.7320.17

1.292.393.424.405.336.247.117.968.789.58

10.3511.1111.8312.5413.2313.8914.5215.1415.7316.3016.8317.3517.8418.2918.7319.1319.5119.8620.1720.4520.7120.9321.1121.2621.3821.4521.4921.5021.4721.40

13.6317.0521.65

1.402.593.714.775.806.777.738.659.54

10.4211.2612.0812.8613.6314.3615.0815.7616.4217.0517.6618.2318.7719.2819.7620.2120.6221.0021.3521.6521.9222.1622.3522.5122.6222.6922.7222.7122.6522.5522.40

14.7018.3423.03

1.502.794.005.156.257.318.349.33

10.3011.2412.1513.0213.8614.7015.4916.2416.9817.6718.3418.9719.5720.1420.6621.1621.6122.0322.4122.7323.0323.2823.4823.6423.7523.8123.8223.7923.7123.5623.3723.12

15.7519.5924.29

1.622.994.285.526.707.848.95

10.0211.0612.0513.0313.9714.8715.7516.5917.3918.1718.9019.5920.2520.8721.4522.0022.4922.9423.3523.7124.0224.2924.5024.6624.7724.8224.8224.77

17.0321.1125.69

1.743.244.655.997.278.519.70

10.8611.9813.0614.1115.1216.1017.0317.9218.7819.6020.3721.1121.7922.4323.0223.5624.0624.4924.8725.2025.4725.6925.8425.9425.9725.9225.8325.65

19.5123.9327.90

2.013.745.366.908.389.81

11.1812.5213.8015.0416.2317.3818.4719.5120.5121.4422.3323.1623.9324.6325.2825.8626.3826.8227.1827.4827.7027.8427.9027.8727.7627.5527.2726.8826.40

0.080.110.160.32

0.010.010.020.020.030.030.040.050.050.060.060.070.070.080.080.090.100.100.110.110.120.120.130.140.140.150.150.160.160.170.180.180.190.190.200.200.210.220.220.230.230.240.240.250.25

0.400.540.821.61

0.030.060.080.110.140.170.200.230.250.280.310.340.370.400.420.450.480.510.540.570.590.620.650.680.710.740.760.790.820.850.880.910.930.960.991.021.051.071.101.131.161.191.221.241.27

0.630.861.312.58

0.050.090.140.180.230.270.320.360.410.450.500.540.590.630.680.720.770.810.860.910.951.001.041.091.131.181.221.271.311.361.401.451.491.541.581.631.671.721.771.811.861.901.951.992.04

0.710.971.482.90

0.050.100.150.200.250.310.360.410.460.510.560.610.660.710.760.810.870.920.971.021.071.121.171.221.271.321.371.42.1.481.531.581.631.681.731.781.831.881.931.982.042.092.142.192.242.29

315 335 355 375 400 4501.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57

20.5924.76

2.834.235.927.258.78

10.3111.7813.2414.5815.9217.1718.4219.5020.5921.6722.7523.4224.0924.7625.4426.1126.7827.4528.12

500

23.1228.12

3.655.326.878.25

10.0211.7813.4115.0416.5518.0519.4420.8221.9723.1224.2725.4225.8426.0428.1228.3128.4228.3428.06

560

27.8231.35

5.357.629.89

11.9614.0315.9217.8019.5021.2022.7124.2125.5026.7827.8228.8629.6330.3930.8731.3531.5031.6531.4731.29

630

32.85

6.879.77

12.6715.2817.8820.2022.5124.5026.4828.0929.6930.9032.1132.8533.5933.8434.08

800

57


700950

1450

50100150200250300350400450500550600650700750800850900950

1000105011001150120012501300135014001450150015501600165017001750180018501900195020002050210021502200225023002350240024502500

NRPM


6.087.348.72

0.751.351.882.362.843.263.684.074.444.805.155.475.786.086.366.536.887.127.347.547.747.928.088.238.368.478.578.668.728.778.808.828.818.788.748.688.608.508.388.248.087.897.687.467.206.936.636.315.975.60

224

6.918.40

10.09

0.831.502.102.653.183.674.144.595.025.445.836.216.576.917.247.557.858.138.408.658.889.109.309.589.639.779.90

10.0010.0910.1510.2110.2310.2410.2210.1910.1210.05

9.949.819.669.489.289.058.818.538.227.897.537.156.73

236

7.899.62

11.63

0.921.672.342.973.574.144.685.205.696.176.627.067.497.898.278.638.999.319.629.91

10.1910.4410.6710.8811.0711.2511.4011.5211.6311.7211.7811.8111.8211.8111.7711.7111.6211.5011.3611.1910.9910.7510.5010.21

9.899.539.168.748.297.81

250

9.9312.1714.73

1.112.032.083.674.425.145.826.477.127.738.308.879.419.93

10.4210.8911.3411.7712.1712.5412.8913.2313.5213.7914.0414.2614.4514.6114.7314.8414.9114.9414.9414.9214.8414.7414.6114.4314.2213.9713.6913.3612.9912.5812.13

12.2415.0117.99

1.342.463.504.465.396.287.137.958.749.50

10.2310.9211.6012.2412.8613.4414.0014.5215.0115.4715.8916.2916.6416.9617.2417.4817.6917.8617.9918.0618.1018.0918.0417.9417.8017.6017.3717.0716.7116.32

14.8118.0821.15

1.592.944.195.376.497.568.609.60

10.5611.4812.3713.2114.0314.8115.5416.2416.9017.5118.0818.6119.0919.5319.9120.2620.5420.7820.9621.0821.1521.1621.1120.9920.8220.5820.27

280

17.5721.2923.97

1.883.484.966.377.719.00

10.2311.4312.5613.6614.7115.7216.6717.5718.4319.2319.9720.6621.2921.8622.3722.8223.2023.5123.7523.9324.0124.0323.9723.82

315

23.2527.42

2.504.656.668.55

10.3612.0913.7515.3316.8518.2919.6620.9422.1423.2524.2825.2226.0526.7927.4227.9428.3428.6328.8028.8528.75

560

20.4924.5426.07

2.194.075.817.479.04

10.5612.0113.4114.7316.0217.2318.3819.4720.4921.4522.3423.1423.8824.5425.1125.6126.0026.3126.5326.6426.6526.5726.3626.0725.64


speed ratio

26.3330.36

2.885.347.659.83

11.9113.9015.7917.5919.3020.9222.4423.8525.1526.3327.4028.3429.1529.8230.3630.7330.9631.0130.9030.6130.14

0.120.160.25

0.010.020.030.030.040.050.060.070.080.090.100.100.110.120.130.140.150.160.160.170.180.190.200.210.220.230.230.240.250.260.270.280.290.290.300.310.320.330.340.350.360.360.370.380.390.400.410.420.420.43

0.610.821.26

0.040.090.130.170.220.260.300.500.390.430.480.520.560.610.650.690.740.780.820.870.910.951.001.041.081.131.171.211.261.301.341.391.431.471.521.561.601.651.691.731.781.821.861.911.951.992.042.082.122.17

0.971.322.01

0.070.140.210.280.350.420.490.550.620.690.760.830.900.971.041.111.181.251.321.391.461.531.601.661.731.801.871.942.012.082.152.222.292.362.432.502.572.642.702.772.842.912.983.053.123.193.263.333.403.47

1.091.482.26

0.080.160.230.310.390.470.550.620.700.780.860.941.011.091.171.251.331.401.481.561.641.721.791.871.952.032.102.182.262.342.422.492.572.652.732.812.882.963.043.123.203.273.353.433.513.593.663.743.823.90

5004504003551.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57630

31.16

3.566.168.78

11.3913.7616.1218.2720.4222.3624.3026.0027.7029.4331.1632.89

710

34.53

4.357.05

10.0513.0515.7418.4220.8423.2525.4127.5629.3731.1832.8534.5336.20

800

37.65

5.238.09

11.4614.8317.8820.9323.6426.3528.6430.9232.8034.6836.1737.6539.14

58

TABLE 11 Section DPower Rating P (kw) for arc of contact 180

59

700950

20406080

100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680700720740760780800820840860880900920940960980

100010201040106010801100112011401160118012001220124012601280130013201340136013801400

NRPM

Pitch diameter of the smaller pulley (mm)Additional Power(Kw) per belt for

speed ratio

0.230.31

0.010.010.020.030.030.040.050.050.060.060.070.080.080.090.100.100.110.120.120.130.140.140.150.160.160.170.180.180.190.190.200.210.210.220.230.230.240.250.250.260.270.270.280.290.290.300.310.310.320.320.330.340.340.350.360.360.370.380.380.390.400.400.410.420.420.430.440.440.450.45

1.141.154

0.030.060.100.130.160.190.230.260.290.320.360.390.420.450.490.520.550.580.620.650.680.710.750.780.810.840.880.910.940.971.011.041.071.101.141.171.201.231.271.301.331.361.401.431.461.491.531.561.591.621.661.691.721.751.791.821.851.881.921.951.982.012.052.082.112.142.182.212.242.27

1.822.47

0.050.100.160.210.260.310.360.420.470.520.570.620.680.730.780.830.880.940.991.041.091.141.201.251.301.351.401.461.511.561.611.661.721.771.821.871.921.982.032.082.132.182.242.292.342.392.442.502.552.602.652.702.762.812.862.912.963.023.073.123.173.223.283.333.383.433.483.533.593.64

2.052.78

0.060.120.180.230.290.350.410.470.530.580.640.700.760.820.880.940.991.051.111.171.231.291.341.401.461.521.581.641.691.751.811.871.931.992.052.102.162.222.282.342.402.452.512.572.632.692.752.812.862.922.983.043.103.163.213.273.333.393.453.513.563.623.683.743.803.863.923.974.034.09

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57

16.0519.43

0.831.532.182.793.383.954.495.035.546.056.557.047.517.988.438.889.329.77

10.1910.6111.0111.4211.8212.2112.5912.9713.3513.7014.0614.4114.7515.0915.4215.7416.0516.3716.6716.9717.2517.5417.8118.0818.3418.6018.8419.0819.3119.5319.7519.9620.1620.3620.5420.7220.9020.0520.2120.3621.4921.6221.7521.8521.9622.0522.1422.2222.2922.3422.4022.44

315

20.1224.35

1.011.862.653.404.134.835.516.176.837.478.098.699.299.88

10.4611.0311.5812.1412.6713.2013.7214.2414.7415.2415.7216.2016.6717.1417.5918.0318.4718.8919.3119.7220.1220.5220.9021.2721.6321.9822.3322.6723.0023.3223.6323.9324.2124.5024.7625.0225.2625.5025.7425.9526.1626.3626.5326.7126.8727.0227.1527.2927.3927.5027.5927.6727.7427.7927.8427.86

355

22.1026.71

1.092.022.893.714.505.276.026.757.478.168.859.81

10.1710.8311.4612.0912.7113.3013.9014.4815.0615.6216.1816.7317.2617.7918.3018.8219.3119.8020.2920.7521.2121.6622.1022.5322.9523.3623.7624.1524.5324.8925.2425.5925.9226.2526.5726.8627.1527.4327.6927.9528.1928.4128.6328.8329.0329.2129.3729.5329.6629.7929.8930.0130.0830.1530.2030.2430.2730.29

375

24.5329.56

1.202.223.174.084.975.826.657.478.259.039.80

10.5411.2811.9912.7113.4014.0814.7515.4116.0716.7117.3417.9618.5619.1619.7520.3320.8821.4421.9822.5123.0423.5424.0324.5325.0025.4625.9036.8426.7827.1827.5827.9728.3528.7129.0629.4029.7230.0330.3230.6030.8731.1231.3531.5731.7831.9732.1432.3232.4632.5932.7132.8032.8832.9532.9933.0233.0333.0333.23

400

26.8932.28

1.302.423.474.465.436.367.288.179.049.89

10.7311.5512.3613.1613.9314.7015.4616.1916.9317.6418.3119.0419.7120.3821.0321.6822.3122.9223.5324.1324.7125.2722.8226.3726.8927.4127.9128.3928.8629.3329.7730.2030.6131.0131.4031.7632.1132.4532.7733.0833.3633.6333.8834.1334.3534.5534.7334.8935.0435.1835.2835.3735.4535.5135.5335.5435.5335.5135.4635.39

425

29.2034.88

1.412.613.764.845.896.917.908.879.82

10.7511.6712.5613.4414.3015.1515.9916.8117.6218.4119.1919.9620.7121.4522.1822.8823.5824.2724.9325.5926.2326.8527.4628.0628.6329.2029.7630.2830.8131.3131.7932.2632.7133.1533.4633.9634.3534.7035.0535.3735.6935.9736.2436.4936.7236.9337.1237.2837.4237.5537.6537.7337.7937.8237.8337.8237.7937.7437.6537.5537.41

450

30.3635.92

1.522.844.075.096.127.158.179.20

10.2211.2512.1813.1114.0314.9615.8916.7317.5818.4219.2720.1120.8721.6222.3823.1323.8924.5425.1925.8426.4927.3427.9428.5529.1529.7630.3630.8631.3631.8632.3632.8632.9133.4634.0234.5735.1235.4535.7736.1036.4236.7536.9737.1937.4137.6337.8537.9638.0838.1938.3138.4238.4138.4038.3838.3738.3638.2238.0837.9337.7937.65

475

34.9240.72

1.753.334.725.917.118.319.50

10.7011.8913.0914.1415.1916.2517.3018.3519.3320.3121.2822.2623.2424.1124.9925.8626.7427.6128.4029.1929.9730.7631.5532.2232.9033.5734.2534.9235.4936.0536.6237.1837.7538.1838.6139.0339.4639.8940.2040.5140.8341.1441.4541.6141.7741.9242.0842.2442.2642.2942.3142.3442.3642.1842.3141.8241.6441.4641.1240.7840.4340.0939.75

500

33.6539.69

1.623.014.335.596.807.989.14

10.2611.3612.4413.5114.5515.5716.5817.5718.5319.4920.4221.3422.2423.1323.9924.8425.6826.4927.2928.0828.8329.5830.3031.0231.7032.3733.0233.6534.2534.8435.4135.9536.4836.9837.4637.9238.3638.7739.1539.5939.8640.1640.4640.7240.9541.1641.3541.5141.6341.7441.8041.8541.8641.8441.8041.7341.6241.4941.1440.2239.9439.0438.09

530

17.4121.38

0.981.762.473.053.634.214.795.375.956.537.057.568.088.599.119.58

10.0410.5110.9711.4411.8812.3212.7513.1913.6314.0314.4414.8415.2515.6516.0016.3516.7117.0617.4117.7918.0418.3318.4118.6319.0919.2819.6719.8920.0420.4421.3121.4321.5422.0422.1422.3122.6922.8123.9824.1224.2124.3624.4424.9825.0625.4425.5425.6125.7825.8125.8925.9826.0926.09

335

TABLE 11 Section DPower Rating P (kw) for arc of contact 180

60

700950

20406080

100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680700720740760780800820840860880900920940960980

10001020104010601080110011201140116011801200

NRPM


44.0149.48

2.154.025.807.499.14

10.7312.3013.8215.3116.7718.2019.6020.9822.3323.6624.9526.2227.4629.6829.8631.0232.0533.2534.3235.3636.3737.3638.3039.2240.1140.9541.7742.5543.2944.0144.6845.3145.9146.4546.9747.4547.8848.2748.6248.9249.1749.3849.5549.6749.7449.7649.7349.6449.5249.33

900560

38.6544.72

1.863.495.016.477.899.26

10.6111.9213.2014.4615.7016.9118.0919.2620.4121.5422.6423.7224.7825.8226.8427.8328.8029.7630.6831.5932.4833.3433.1734.9895.7696.5337.2637.9738.6539.3039.9340.5341.1041.6442.1642.6343.0843.5043.8944.2544.5644.8644.1145.3345.5245.6645.7845.8545.8945.9045.8545.7845.6545.50


speed ratio

46.8151.61

2.314.346.248.069.84

11.5613.2514.8916.5018.0719.6121.1322.6124.0625.4716.8628.2229.5530.8532.1133.3434.5535.7136.8337.9439.0040.0241.0041.9642.8743.7444.5745.3646.1146.8147.4748.0948.6649.1849.6550.0950.4650.7951.0651.2951.4651.5851.6351.6451.59

49.43

2.484.646.688.64

10.5412.3914.2015.9617.6819.3621.0122.6324.2125.7627.2728.7530.2031.6132.9834.3135.6236.8838.0939.2840.4341.5342.5943.6144.5745.5146.3947.2248.0148.7449.4350.0650.6451.1851.6552.0752.4352.7352.9753.1553.28

51.85

2.644.957.129.22

11.2513.2215.1417.0118.8520.6422.4024.1225.8027.4429.0430.6132.1333.6235.0636.4737.8339.1440.4341.6542.8343.9645.0646.0847.0748.0148.8949.7150.4851.1951.8552.4452.9753.4553.8454.1954.4654.6654.8054.8654.86

54.57

2.845.327.679.92

12.1114.2416.3118.3920.3022.2324.1225.9627.7629.5231.2332.9034.5136.0937.6139.0940.5341.9143.2344.5045.7346.8848.0049.0450.0250.9551.8952.5953.3353.9854.5755.0955.5355.9055.9056.41

58.98

3.236.078.76

11.3413.8316.2518.6220.9223.1625.3527.4929.5731.5933.5635.4737.3239.1140.8542.5144.1145.6547.1148.5149.8451.0952.2653.3554.3755.2956.1356.8957.5558.1358.6058.9859.2559.4359.5059.5059.33

0.230.31

0.010.010.020.030.030.040.050.050.060.060.070.080.080.090.100.100.110.120.120.130.140.140.150.160.160.170.180.180.190.190.200.210.210.220.230.230.240.250.250.260.270.270.280.290.290.300.310.310.320.320.330.340.340.350.360.360.370.380.380.39

1.141.154

0.030.060.100.130.160.190.230.260.290.320.360.390.420.450.490.520.550.580.620.650.680.710.750.780.810.840.880.910.940.971.011.041.071.101.141.171.201.231.271.301.331.361.401.431.461.491.531.561.591.621.661.691.721.751.791.821.851.881.921.95

1.822.47

0.050.100.160.210.260.310.360.420.470.520.570.620.680.730.780.830.880.940.991.041.091.141.201.251.301.351.401.461.511.561.611.661.721.771.821.871.921.982.032.082.132.182.242.292.342.392.442.502.552.602.652.702.762.812.862.912.963.023.073.12

2.052.78

0.060.120.180.230.290.350.410.470.530.580.640.700.760.820.880.940.991.051.111.171.231.291.341.401.461.521.581.641.691.751.811.871.931.992.052.102.162.222.282.342.402.452.512.572.632.692.752.812.862.922.983.043.103.163.213.273.333.393.453.51

8007507106706301.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.571000

3.946.538.06

10.3512.6314.9217.0219.1221.2223.2025.1727.1528.9830.8132.6434.3336.0337.7239.4841.2442.9944.7546.5147.8649.2150.5651.9153.2654.1355.0055.8856.7557.62

600

40.3545.72

1.993.985.556.938.329.71

11.0912.4813.8615.2516.5117.7719.0220.2821.5422.6823.8324.9726.1227.2628.2729.2730.2831.2832.2933.1634.0334.9035.7736.6437.3838.1238.8739.6140.3540.9341.5142.1042.6843.2643.6644.0644.4544.8545.2545.4645.6845.8946.1146.3246.3546.3946.4246.4646.4946.2646.0445.8145.5945.36

TABLE 12 Section EPower Rating P (kw) for arc of contact 180


800400


speed ratio

7507106706305601.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57860500

28.0331.56

1.552.854.055.186.287.328.339.32

10.2711.2012.1213.0013.8614.7115.5316.3317.1217.8918.6519.3720.0820.7821.4422.1022.7423.3623.9624.5425.0925.6326.1526.6527.1427.5928.0328.4428.8329.2029.5529.8830.1830.4630.7230.9431.1531.3331.4931.6231.7331.8031.8531.8731.8731.8431.7831.6931.5831.4331.2531.0430.8330.5330.2229.8929.52

700950

20406080

100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680700720740760780800820840860880900920940960980

1000102010401060108011001120114011601180120012201240126012801300

NRPM

33.5937.41

1.823.364.796.147.448.709.92

11.1012.2513.3814.4815.5516.5917.6218.6119.5920.5421.4722.3823.2624.1224.9525.7726.5527.3228.0628.6429.4730.1430.7831.4031.9932.5533.0833.5934.0734.5234.9535.3435.7036.0336.3436.6036.8437.0537.2237.3537.4637.5237.5637.5637.5137.4437.3337.1736.9836.7636.4936.1835.8335.4435.1234.5234.1433.44

39.8143.40

2.143.965.667.278.83

10.3411.8013.2214.6015.9517.2718.5519.8121.0422.2423.4024.5525.6626.7427.7928.8229.8230.7831.7232.6233.4934.3335.1435.9136.6437.3538.0238.6639.2539.8140.3440.8241.2741.6742.0442.3642.6442.8843.0843.2343.3343.3943.4043.3643.2843.1442.9642.7342.4442.1141.7141.2740.7640.2139.59

46.4148.83

2.514.656.678.59

10.4312.2213.9615.6517.3018.9020.4722.0123.4924.9526.3727.7529.1130.4131.6832.9234.1235.2836.4037.4738.5139.5140.4541.3642.2243.0443.8144.5345.2145.8246.4146.9347.3947.8148.1748.4648.7148.9049.0349.0949.1049.0448.9248.7348.4748.1647.7647.3146.7846.1745.50

49.82

2.715.067.249.33

11.3413.2815.1817.0218.8220.5622.2723.9525.5727.1528.6930.1931.6533.0634.4435.7637.0638.3039.4940.6341.7342.7843.7844.7345.6246.4647.2447.9848.6549.2649.8250.3150.7451.1051.4051.6351.8051.9051.9251.8851.76

52.97

2.935.457.80

10.0612.2414.3416.4018.3820.3322.2224.0625.8627.6129.3230.9732.5834.1535.6737.1338.5539.9241.2242.4843.6944.8545.9446.9747.9448.8649.7050.5051.2151.8752.4552.9753.4053.7754.0654.2854.4254.4754.4554.3554.1653.87

55.83

3.135.838.37

10.8013.1315.4017.6019.7421.8323.8525.8327.7629.6331.4533.2234.9436.6038.2139.7741.2742.7144.0945.4046.6547.8448.9750.0251.0151.9352.7753.5454.2354.8455.3755.8356.2056.4856.6856.7856.79

59.00

3.396.329.07

11.7014.2516.7119.0921.4123.6825.8728.0230.1032.1234.0935.9937.8339.6141.3342.9844.5646.0847.5348.9050.2051.4252.5853.6454.6255.5156.3357.0557.6958.2258.6659.0059.2459.3859.4259.3559.17

61.69

3.656.819.77

12.6115.3518.0020.5723.0825.5127.8830.1832.4034.5836.6838.7040.6642.5544.3646.1047.7649.3450.8452.2653.5854.8255.9757.0257.9758.8259.5760.2260.7661.1861.5061.69

0.380.52

0.010.020.030.040.050.070.080.090.100.110.120.130.140.150.160.180.190.200.210.220.230.240.250.260.270.280.300.310.320.330.340.350.360.370.380.390.410.420.430.440.450.460.470.480.490.500.510.530.540.550.560.570.580.590.600.610.620.640.650.660.670.680.690.700.71

1.922.60

0.050.110.160.220.270.330.380.440.490.550.600.660.710.770.820.880.930.991.041.091.151.201.261.311.371.421.481.531.591.641.701.751.811.861.921.972.032.082.142.192.242.302.352.412.462.522.572.632.682.742.792.852.902.963.013.073.123.183.233.283.343.393.453.503.56

3.074.16

0.090.180.260.350.440.530.610.700.790.880.961.051.141.231.311.401.491.581.661.751.841.932.022.102.192.282.372.452.542.632.722.802.892.983.073.153.243.333.423.503.593.683.773.863.944.034.124.214.294.384.474.564.644.734.824.914.995.085.175.265.345.435.525.615.70

3.454.68

0.100.200.300.390.490.590.690.790.890.981.081.181.281.381.481.581.671.771.871.972.072.172.272.362.462.562.662.762.862.953.053.153.253.353.453.553.643.743.843.944.044.144.244.334.434.534.634.734.834.925.025.125.225.325.425.525.615.715.815.916.016.116.216.306.11

61

TABLE 12 Section EPower Rating P (kw) for arc of contact 180


900


speed ratio

16001400125011201000 1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57950

63.88

3.907.28

10.4613.5216.4519.2922.0524.7327.3329.8532.3134.6836.9839.2141.3643.4345.4147.3149.1250.8552.4854.0155.4556.7858.0159.1460.1461.0561.8362.4963.0363.4463.7263.8763.88

700950

20406080

100120140160180200220240260280300320340360380400420440460480500520540560580600620640660680700

NRPM

65.54

4.167.76

11.1614.4117.5320.5623.5026.3529.1331.8134.4136.9339.3641.7043.9646.1348.2050.1752.0553.8255.4857.0358.4759.7961.2062.0763.0363.8464.5265.0665.4765.7165.8065.7565.54

4.418.24

11.8415.3018.6221.8424.9527.9730.9033.7436.4939.1441.6944.1546.5048.7650.9152.9554.8756.6758.3559.9061.3362.6163.7764.7865.6466.3566.8967.28

5.268.58

11.9015.2418.5721.9124.9628.0131.0633.8636.6539.4541.9744.4847.0049.2451.4853.7255.6757.6359.5861.1962.7964.4065.6466.8868.1268.9769.8370.68

5.919.69

13.4717.2521.0324.8128.2431.6735.1038.2341.3544.4847.2550.0152.7855.2057.6360.0562.0564.0566.0567.6069.1470.6971.7672.8373.9074.4274.9575.47

6.7110.9815.2419.5223.8128.0931.9535.8139.6743.1346.6050.0653.0756.0759.0861.6164.1566.6868.6770.6672.6574.0675.3576.7177.3978.0978.78

7.7412.6717.5922.5127.4232.3436.7541.1645.5749.4153.2557.0960.3363.5666.8069.3671.9274.4876.2377.9879.7380.6181.4982.37

0.380.52

0.010.020.030.040.050.070.080.090.100.110.120.130.140.150.160.180.190.200.210.220.230.240.250.260.270.280.300.310.320.330.340.350.360.370.38

1.922.60

0.050.110.160.220.270.330.380.440.490.550.600.660.710.770.820.880.930.991.041.091.151.201.261.311.371.421.481.531.591.641.701.751.811.861.92

3.074.16

0.090.180.260.350.440.530.610.700.790.880.961.051.141.231.311.401.491.581.661.751.841.932.022.102.192.282.372.452.542.632.722.802.892.983.07

3.454.68

0.100.200.300.390.490.590.690.790.890.981.081.181.281.381.481.581.671.771.871.972.072.172.272.362.462.562.662.762.862.953.053.153.253.353.45

62

TABLE13 Section SPZ, 3VPower Rating P (kw) for arc of contact 180

63

700950

14502850

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500260027002800290030003100320033003400350036003700380039004000410042004300440045004600470048004900500051005200530054005500560058006000620064006600680070007200740076007800800082008400

NRPM


0.550.690.961.53

0.110.200.280.340.420.480.550.610.660.730.780.830.880.940.981.031.081.121.171.211.251.291.331.361.411.441.471.511.541.571.611.641.671.691.731.751.771.791.821.841.861.881.901.911.941.951.971.981.992.002.012.022.022.042.042.052.052.052.052.042.011.991.971.941.901.861.801.751.691.63

0.750.961.352.24

0.140.250.360.460.560.660.750.840.921.021.080.171.241.311.391.461.531.601.661.741.791.861.931.982.052.102.162.212.272.322.382.422.482.522.562.612.652.702.742.782.822.852.892.932.962.993.013.053.073.093.123.153.173.183.203.213.253.283.283.283.283.283.263.233.203.173.123.073.002.93


speed ratio

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57

0.010.010.020.04

0.000.000.000.010.010.010.010.010.010.010.020.020.020.020.020.020.020.030.030.030.030.030.030.030.040.040.040.040.040.040.040.050.050.050.050.050.050.050.060.060.060.060.060.060.060.060.070.070.070.070.070.070.080.080.080.080.080.090.090.090.100.100.100.110.110.110.110.110.120.14

0.060.090.130.26

0.010.020.030.040.050.060.060.070.080.090.100.110.120.130.140.150.160.170.180.190.190.190.210.220.230.240.250.260.270.280.290.300.310.310.320.330.340.350.360.370.380.390.400.410.420.420.440.440.450.460.470.480.490.500.510.520.540.560.590.610.630.620.670.690.700.720.740.760.780.79

0.090.120.190.37

0.010.030.040.050.070.080.090.110.120.130.140.160.170.180.200.210.220.240.250.260.280.280.300.320.330.340.35

0.3670.380.390.410.420.430.450.460.470.490.500.510.530.540.550.570.580.590.590.620.630.640.660.670.680.700.710.720.740.760.790.840.870.890.920.950.971.001.031.051.081.101.13

0.110.150.230.46

0.020.030.050.060.080.100.110.130.150.160.180.190.210.230.240.260.270.290.310.320.340.340.370.390.400.420.440.450.470.480.500.520.530.550.560.580.600.610.630.640.660.680.690.710.730.730.760.770.790.810.820.840.850.870.890.900.930.971.031.061.101.131.161.191.221.261.291.321.351.38

63 71 95 100

0.971.251.793.03

0.180.330.460.610.730.850.971.091.211.311.421.531.641.741.841.942.042.132.222.312.412.502.592.662.752.832.922.993.073.153.213.293.363.423.493.553.623.693.743.803.853.913.964.024.064.104.154.194.244.244.304.354.384.404.434.464.504.534.574.584.594.584.574.544.514.474.404.334.264.17

1.101.422.023.45

0.200.360.530.670.810.961.101.231.361.491.611.741.851.972.092.202.312.422.532.632.742.842.943.043.143.233.323.413.503.593.673.753.843.923.994.074.154.214.284.354.414.484.534.604.654.714.754.814.854.904.944.975.025.055.085.105.165.195.235.255.255.255.235.195.155.095.034.944.854.73

1.221.582.273.88

0.220.410.580.750.911.071.221.361.521.661.791.942.072.202.332.462.592.712.832.953.073.183.303.413.523.623.733.833.934.034.134.224.314.404.494.584.654.734.814.884.965.035.095.165.235.285.355.405.455.505.545.595.635.675.705.735.795.835.855.865.875.855.835.795.735.675.585.475.365.21

1.341.752.514.31

0.230.440.640.831.001.181.341.511.671.831.982.132.292.432.572.722.862.993.143.273.403.523.653.773.894.024.134.254.364.474.584.684.774.874.975.065.165.255.345.415.495.575.645.725.795.855.915.976.036.086.136.176.226.266.296.336.386.416.456.456.456.426.386.336.256.166.055.925.785.61

1.461.912.744.71

0.250.480.690.891.091.281.461.651.831.992.172.332.502.662.822.983.143.283.433.583.723.864.004.144.274.404.524.654.774.905.015.135.245.355.455.565.655.745.845.936.026.096.176.256.336.396.466.526.586.636.696.736.786.826.856.896.946.976.996.996.966.936.886.806.706.596.456.286.115.90

80 85 90

0.791.021.432.41

0.150.280.380.490.590.690.790.880.971.071.151.241.311.391.481.541.631.691.791.851.921.992.062.132.182.252.322.382.422.492.542.592.652.732.762.822.862.932.973.013.053.093.143.193.213.243.263.323.343.383.463.493.513.533.553.573.593.623.643.653.663.663.643.623.603.583.533.483.423.36

75

0.650.831.111.81

0.130.230.330.420.510.590.650.730.790.870.930.991.051.091.161.221.281.331.361.411.461.541.571.611.681.711.751.791.841.881.921.941.992.042.072.122.152.182.222.252.282.332.362.382.422.442.492.512.542.562.612.632.682.712.732.742.762.772.772.772.782.782.762.752.732.682.612.542.522.38

67

TABLE13 Section SPZ, 3VPower Rating P (kw) for arc of contact 180

64

700950

14502850

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500260027002800290030003100320033003400350036003700380039004000410042004300440045004600470048004900500051005200530054005500560058006000620064006600680070007200740076007800

NRPM


112 125 132 140 160

2.072.713.916.69

0.350.670.971.251.531.802.072.332.592.833.083.323.553.784.024.244.464.684.885.095.305.505.705.896.076.266.446.616.786.947.107.257.407.557.697.827.948.068.188.298.408.508.598.688.768.838.908.979.019.069.109.139.169.179.199.209.179.139.058.938.798.608.38

200180

1.762.313.325.68

0.310.570.831.071.301.531.761.982.192.402.612.813.013.203.403.593.773.964.144.314.494.654.834.985.155.305.465.615.755.906.046.176.306.426.566.676.796.907.017.117.217.307.397.477.567.627.707.777.827.887.937.988.028.058.098.118.138.148.138.098.027.937.817.677.497.287.05


speed ratio

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57

2.232.934.227.22

0.390.731.051.351.661.952.232.522.793.063.333.593.854.094.354.594.835.065.295.515.735.946.166.366.566.756.947.137.307.487.657.717.968.128.268.408.548.668.788.899.009.109.199.279.359.429.489.549.589.639.659.679.689.699.699.679.639.549.419.24

2.433.184.587.81

0.420.781.131.461.792.112.432.733.043.323.613.894.174.444.724.975.245.495.735.976.226.456.676.897.117.327.517.717.908.098.268.448.598.768.909.049.179.319.439.549.649.749.829.909.98

10.0310.0910.1310.1610.1910.2110.2110.2110.1910.1610.1310.0810.98

9.689.45

2.663.495.038.51

0.450.861.241.614.972.322.663.003.323.653.974.284.584.885.175.465.746.026.296.556.816.817.307.507.778.008.218.428.618.819.009.179.349.509.669.809.93

10.0710.1810.2910.3810.4710.5510.6210.6710.7110.7510.7710.7910.7910.7810.7610.7110.6710.6210.5410.3510.12

3.374.406.34

10.48

0.571.081.562.042.492.933.373.784.204.615.015.405.786.156.516.887.227.567.898.218.518.519.109.379.649.90

10.1410.3710.5910.7910.9911.1711.3411.5011.6311.7611.8711.9612.0312.1012.1412.1812.1912.1912.1712.1212.0711.9911.8911.77

3.824.987.17

11.64

1.651.221.772.312.833.333.824.304.775.245.696.136.566.977.387.788.168.548.899.249.589.58

10.2110.5110.7811.0411.3011.5311.7411.9512.1212.2912.4412.5612.6712.7612.8412.8812.9012.9112.9012.8612.7912.7212.61

0.010.010.020.04

0.000.000.000.010.010.010.010.010.010.010.020.020.020.020.020.020.020.030.030.030.030.030.030.030.040.040.040.040.040.040.040.050.050.050.050.050.050.050.060.060.060.060.060.060.060.060.070.070.070.070.070.070.080.080.080.080.080.090.090.090.100.100.100.110.110.110.110.11

0.060.090.130.26

0.010.020.030.040.050.060.060.070.080.090.100.110.120.130.140.150.160.170.180.190.190.190.210.220.230.240.250.260.270.280.290.300.310.310.320.330.340.350.360.370.380.390.400.410.420.420.440.440.450.460.470.480.490.500.510.520.540.560.590.610.630.620.670.690.700.720.740.76

2.893.805.479.21

0.500.941.351.752.152.522.893.273.623.974.314.654.985.315.625.946.246.536.837.127.397.397.928.178.428.668.889.109.319.509.709.88

10.0510.2210.3610.5110.6410.7610.8710.9711.0611.1211.1911.2311.2811.3011.3111.3111.2911.2511.2111.1511.0810.9910.89

0.090.120.190.37

0.010.030.040.050.070.080.090.110.120.130.140.160.170.180.200.210.220.240.250.260.280.280.300.320.330.340.35

0.3670.380.390.410.420.430.450.460.470.490.500.510.530.540.550.570.580.590.590.620.630.640.660.670.680.700.710.720.740.760.790.840.870.890.920.950.971.001.031.051.08

0.110.150.230.46

0.020.030.050.060.080.100.110.130.150.160.180.190.210.230.240.260.270.290.310.320.340.340.370.390.400.420.440.450.470.480.500.520.530.550.560.580.600.610.630.640.660.680.690.710.730.730.760.770.790.810.820.840.850.870.890.900.930.971.031.061.101.131.161.191.221.261.291.32

150 224

3.935.197.26

11.59

0.701.261.822.352.893.423.934.434.905.375.836.306.677.057.427.798.198.598.999.399.72

10.0510.3710.7010.9011.1011.2911.4911.6911.8912.0812.2812.2512.2212.1812.1512.1312.1012.0812.05

106

1.481.952.794.82

0.260.490.720.931.131.311.481.681.862.052.232.392.562.742.893.093.213.353.493.663.793.954.094.234.384.494.654.794.894.975.165.245.335.465.595.695.795.845.966.096.166.196.296.356.466.496.596.636.696.786.896.987.017.047.097.147.167.187.247.087.046.986.866.786.626.586.45

118

1.792.353.385.78

0.320.580.841.121.341.561.792.052.222.452.692.883.083.283.463.653.894.094.214.414.594.684.925.085.315.395.605.725.836.016.186.256.416.526.616.826.936.997.137.247.337.437.567.637.717.797.837.958.018.098.118.148.168.188.218.238.188.168.148.128.097.987.89

TABLE 14 Section SPAPower Rating P (kw) for arc of contact 180

NRPM


speed ratio

90 100 112 118 125 132 1401.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.5780 85 95 106

65

700950

14502850

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500260027002800290030003100320033003400350036003700380039004000410042004300440045004600470048004900500051005200530054005500560057005800590060006100620063006400650066006700680069007000

1.231.552.133.29

0.240.440.620.780.931.081.231.371.491.621.741.861.972.082.182.292.392.492.572.672.752.842.912.993.053.133.193.263.323.373.423.483.523.563.593.633.653.693.713.733.743.753.763.763.763.753.743.733.713.693.653.623.583.543.503.443.393.333.263.183.113.022.942.852.752.652.532.422.302.10

1.622.082.904.62

0.300.560.801.021.231.431.621.811.982.162.332.502.662.812.973.123.273.403.543.663.803.924.044.164.264.374.474.584.664.764.844.925.005.075.135.205.255.305.365.405.435.465.495.505.525.535.535.535.525.515.495.465.435.405.345.295.245.185.105.024.944.844.754.644.534.404.273.823.993.84

2.092.693.796.17

0.380.701.011.291.561.832.092.332.572.803.033.263.483.693.904.104.294.484.674.855.034.365.375.525.685.835.966.116.246.366.496.596.716.806.916.997.087.157.227.297.347.397.427.477.497.517.527.527.527.507.487.447.417.367.317.257.177.096.996.896.786.666.536.386.246.085.905.725.535.32

2.322.994.236.93

0.420.781.111.431.732.032.322.592.873.133.383.633.894.124.364.584.805.025.235.435.635.786.016.206.366.536.706.867.007.157.287.417.537.647.767.857.958.038.128.188.248.308.348.388.408.428.438.438.438.418.388.358.308.248.178.108.017.917.807.697.557.407.267.096.916.726.526.316.085.84

2.583.354.757.79

0.460.861.241.601.932.272.582.903.203.503.794.074.354.624.885.135.395.645.876.106.336.546.766.967.167.357.537.717.888.038.198.348.478.608.728.838.949.039.119.199.259.309.369.399.429.439.449.439.429.399.369.309.249.179.088.998.878.768.628.478.318.147.957.757.537.307.066.806.536.24

2.863.715.268.64

0.500.951.351.752.132.502.863.203.543.864.194.504.815.115.415.695.976.256.516.767.017.267.507.727.948.158.358.558.738.909.079.239.389.529.659.779.889.98

10.0710.1410.2110.2710.3110.3410.3610.3710.3710.3510.3210.2810.2310.1610.08

9.999.879.759.629.469.299.118.918.708.478.257.97

3.164.115.849.58

0.561.041.501.932.352.763.163.543.924.284.655.005.345.686.016.326.646.937.227.527.798.068.328.578.819.049.269.489.689.87

10.0510.2310.3810.5310.6310.7910.9111.0111.1011.1711.2511.2911.3311.3511.3611.3611.3411.3111.2611.1911.1111.0110.9110.7710.6410.4710.2910.10

9.889.659.419.148.858.558.19

0.020.030.050.09

0.000.010.010.010.020.020.020.030.030.030.040.040.040.050.050.050.060.060.060.070.070.070.080.080.080.090.090.090.100.100.100.110.110.110.120.120.120.130.130.130.140.140.140.150.150.150.160.160.160.170.170.170.180.180.180.190.190.190.200.200.200.210.210.210.220.220.220.230.230.23

0.150.200.310.61

0.020.040.060.090.110.130.150.170.190.220.240.030.280.030.320.340.370.390.410.430.450.470.490.520.540.560.580.600.620.650.670.690.710.730.750.770.800.820.840.860.880.900.930.950.970.991.011.031.051.081.101.121.141.161.181.211.231.251.271.291.311.331.361.381.401.421.441.461.481.51

0.210.290.440.87

0.030.060.090.120.150.180.210.240.270.310.340.370.400.430.460.490.520.550.580.610.640.670.700.730.760.790.820.860.890.920.950.981.011.041.071.101.131.161.191.221.251.281.311.341.371.411.441.471.501.531.561.591.621.651.681.711.741.771.801.831.861.891.921.961.992.022.052.082.112.14

0.260.360.541.07

0.040.070.110.150.190.220.260.300.340.370.410.450.490.520.560.600.640.670.710.750.790.820.860.900.940.971.011.051.091.121.161.201.241.271.311.351.391.421.461.501.541.571.611.651.691.721.761.801.841.871.911.951.992.022.062.102.132.172.212.252.282.322.362.402.432.472.512.552.582.62

0.951.171.522.11

0.230.380.520.640.740.840.951.041.161.191.291.351.421.481.561.591.641.691.751.791.841.881.921.951.992.042.082.092.132.152.192.222.232.272.282.312.33

1.111.371.822.68

0.220.420.590.730.860.991.111.231.331.421.551.591.681.781.851.931.992.072.152.192.282.312.372.412.492.542.592.652.692.742.792.832.892.952.952.983.033.063.093.143.183.19

1.451.792.433.79

0.290.530.750.941.111.291.451.591.751.891.992.132.252.392.482.592.732.852.993.083.113.213.333.423.493.593.683.753.853.893.984.064.144.194.284.354.394.484.594.594.664.734.794.844.884.944.994.994.984.974..954.914.894.824.714.634.584.554.424.214.093.983.863.823.723.583.473.123.093.01

1.792.323.255.24

0.340.610.891.111.341.591.791.992.212.392.592.782.963.153.363.493.653.823.994.134.264.414.554.674.824.925.065.185.265.385.475.585.685.765.835.925.996.046.096.166.196.246.266.296.326.336.346.356.356.346.316.286.246.186.176.126.025.985.925.815.745.635.495.415.265.174.984.844.684.46

TABLE 14 Section SPAPower Rating P (kw) for arc of contact 180

NRPM


speed ratio

170 190 224 250 280 3151.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57150 160 180 200

700950

14502850

100200300400500600700800900

100011001200130014001500160017001800190020002100220023002400250026002700280029003000310032003300340035003600370038003900400041004200430044004500460047004800490050005100520053005400550056005700580059006000

4.145.367.65

12.45

0.721.341.952.513.083.594.144.655.135.626.096.566.997.467.898.268.699.129.499.86

10.1910.5810.9111.1911.5211.7912.0912.3112.5612.7612.9413.1913.2913.4113.5613.6313.7513.8213.8613.8813.8913.8913.8513.7613.6813.4413.3413.2413.1613.0112.9412.8912.74

4.836.298.95

14.29

0.841.592.282.953.594.264.835.466.056.597.217.718.268.739.259.71

10.2610.6311.0911.4911.8912.2912.5812.9613.2813.5813.8914.1614.3814.5714.7614.9415.0815.2115.3215.3915.4115.4315.4215.3815.3415.2915.2115.1915.0414.9814.8614.79

6.268.16

11.5717.65

1.072.032.933.804.645.466.267.047.798.539.249.93

10.6111.2611.8812.4813.0613.6114.1314.6415.1115.5815.9616.3416.7017.0117.2917.5417.7517.9218.0618.1518.2118.2218.2018.1218.0017.8417.6317.37

7.199.37

13.2119.35

1.232.333.374.375.336.287.198.098.959.78

10.5911.3712.1312.8513.5614.2214.8515.4516.0116.5417.0317.4817.8918.2618.5918.8619.0919.2819.4119.5019.5319.5119.4419.3019.11

8.2510.7215.0220.77

1.412.673.865.016.127.208.259.26

10.2411.1912.1112.9813.8214.6315.3816.1116.7817.4118.0018.5319.0219.4419.8120.1320.3820.5720.7120.7720.7620.69

9.4612.2516.9921.60

1.623.074.445.757.048.269.46

10.6111.7212.7913.8114.7815.7016.7817.3918.1418.8519.4820.0620.5520.9821.3421.6121.8121.9121.9521.8721.7121.4621.11

0.020.030.050.09

0.000.010.010.010.020.020.020.030.030.030.040.040.040.050.050.050.060.060.060.070.070.070.080.080.080.090.090.090.100.100.100.110.110.110.120.120.120.130.130.130.140.140.140.150.150.150.160.160.160.170.170.170.180.180.180.190.190.190.200.20

0.150.200.310.61

0.020.040.060.090.110.130.150.170.190.220.240.030.280.030.320.340.370.390.410.430.450.470.490.520.540.560.580.600.620.650.670.690.710.730.750.770.800.820.840.860.880.900.930.950.970.991.011.031.051.081.101.121.141.161.181.211.231.251.271.29

0.210.290.440.87

0.030.060.090.120.150.180.210.240.270.310.340.370.400.430.460.490.520.550.580.610.640.670.700.730.760.790.820.860.890.920.950.981.011.041.071.101.131.161.191.221.251.281.311.341.371.411.441.471.501.531.561.591.621.651.681.711.741.771.801.83

0.260.360.541.07

0.040.070.110.150.190.220.260.300.340.370.410.450.490.520.560.600.640.670.710.750.790.820.860.900.940.971.011.051.091.121.161.201.241.271.311.351.391.421.461.501.541.571.611.651.691.721.761.801.841.871.911.951.992.022.062.102.132.172.212.25

3.544.606.55

10.72

0.621.171.672.162.643.093.543.974.394.815.215.616.006.376.747.107.447.788.128.438.759.049.339.619.87

10.1310.3710.6110.8311.0411.2411.4111.5811.7411.8912.0112.1312.2212.3112.3712.4312.4612.4812.4812.4712.4412.4012.3412.2512.1512.0211.8911.7311.5511.3411.1210.8810.6210.3310.03

3.915.097.27

11.81

0.681.281.852.382.913.413.914.394.865.325.786.296.647.067.477.858.248.628.989.339.67

10.0010.3110.6210.9111.1811.4511.7011.9312.1512.3612.5512.7212.8713.0213.1413.2513.3413.4113.4613.4913.5113.5013.4813.4413.3713.2813.1813.0412.8912.7212.5212.3012.0511.78

4.656.078.65

13.86

0.811.512.182.843.454.064.655.235.806.346.887.407.918.408.889.369.81

10.2510.6711.0811.4711.8412.2112.5512.8713.1813.4713.7313.9914.2214.4314.6114.7714.9215.0415.1315.2015.2615.2815.2815.2515.1815.1114.9914.8614.6914.4914.2614.0013.70

5.397.02

10.0015.72

0.921.752.533.284.004.705.396.066.717.357.968.579.169.72

10.2710.8011.3211.8112.2912.7513.1813.6013.9914.3514.7015.0315.3215.5915.8316.0516.2416.4016.5416.6316.7116.7516.7516.7316.6616.5716.4416.2816.0715.8215.54

66

TABLE 15 Section SPB, 5VPower Rating P (kw) for arc of contact 180

NRPM


speed ratio

125 140 160 170 180 1901.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57132 150 200 212

700950

14502850

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500260027002800290030003100320033003400350036003700380039004000410042004300440045004600470048004900500051005200530054005500

2.893.564.797.16

0.621.091.481.882.222.542.893.183.463.693.984.194.444.664.895.095.325.495.695.886.096.226.396.566.646.796.947.097.187.317.387.497.597.69

3.624.636.399.52

0.691.261.792.282.753.193.624.044.444.825.205.555.906.246.556.867.157.437.707.958.198.428.638.839.019.189.329.469.589.689.779.839.889.919.929.919.899.859.789.699.599.469.309.148.948.728.478.217.927.607.276.906.506.085.64

4.856.248.71

13.16

0.891.652.343.013.644.254.855.425.976.517.027.538.018.478.939.369.78

10.1710.5510.9111.2611.5711.8812.1612.4212.6512.8713.0613.2413.3913.5013.6013.6713.7213.7313.7213.6913.6313.5313.4113.2513.0612.8412.5912.3111.9911.6311.2610.8310.36

9.879.338.778.157.50

5.256.749.44

14.29

0.951.762.533.233.964.625.255.896.497.127.628.198.779.239.71

10.1910.6511.1311.4911.8912.2612.6112.9213.2613.5113.7913.9914.2314.3914.5614.6914.7514.7914.8314.8514.8014.7414.6214.5114.4414.3113.9813.6213.2112.9412.3612.0411.8911.4211.0910.9410.71

6.067.82

10.9616.49

1.092.032.903.744.545.316.066.787.498.168.829.46

10.0710.6711.2511.7912.3212.8213.2913.7614.1814.5714.9515.3015.6115.9116.1616.3916.5816.7516.8716.9717.0217.0417.0316.9716.8816.7516.5716.3616.1015.7915.4515.0514.6214.1213.5913.0112.3711.69

6.668.61

12.0618.04

1.192.223.184.104.985.836.667.468.238.989.71

10.4211.0911.7512.3812.9813.5614.1014.6315.1215.5916.0216.4216.7917.1417.4317.7017.9318.1318.2918.4118.4818.5118.5118.4618.3618.2318.0417.8017.5117.1816.8016.3615.8715.33

0.050.070.110.21

0.010.010.020.030.040.040.050.060.070.070.080.090.100.100.110.120.120.130.140.150.150.160.170.180.180.190.200.210.210.220.230.230.240.250.260.260.270.280.290.290.300.310.320.320.330.340.340.350.360.370.370.380.390.400.40

0.330.450.691.35

0.050.090.140.190.240.280.330.380.430.470.520.570.620.660.710.760.810.850.900.950.991.041.091.141.181.231.281.331.371.421.471.521.561.611.661.711.751.801.851.891.941.992.042.082.132.182.232.272.322.372.422.462.512.562.61

0.470.640.971.92

0.070.130.200.270.340.400.470.540.610.670.740.810.870.941.011.081.141.211.281.341.411.481.551.611.681.751.821.881.952.022.082.152.222.292.352.422.492.552.622.692.762.822.892.963.033.093.163.233.293.363.433.503.563.633.70

0.580.781.202.35

0.080.160.250.330.410.490.580.660.740.820.910.991.071.151.241.321.401.481.571.651.731.811.901.982.062.142.232.312.392.472.562.642.722.802.892.973.053.133.213.303.383.463.543.633.713.793.873.964.044.124.204.294.374.454.53

3.224.095.458.29

0.671.191.652.092.532.863.223.613.894.264.494.815.095.385.655.896.146.316.596.826.996.267.417.597.797.958.118.238.418.568.698.798.918.999.11

4.245.447.56

11.37

0.791.452.072.653.203.734.244.745.215.676.116.546.967.367.758.128.478.819.149.459.74

10.0210.2710.5110.7410.9411.1311.3011.4511.5711.6811.7611.8311.8811.9011.8911.8711.8111.7411.6411.5211.3611.1810.9810.7510.4910.20

9.889.539.168.758.317.837.336.79

7.269.39

13.1619.50

1.292.403.454.455.426.357.268.138.979.80

10.5811.3512.1012.8113.4914.1414.7715.3715.9316.4616.9617.4217.8518.2418.5918.9019.1719.4019.5819.7319.8219.8819.8819.8319.7419.5919.3919.1318.8318.4618.0317.5517.0016.4015.73

7.9610.3114.4421.14

1.412.643.784.885.946.977.968.939.86

10.7511.6312.4713.2814.0614.8215.5316.2016.8517.4618.0318.5519.0519.4919.9020.2520.5720.8321.0521.2121.3321.3921.4021.3521.2321.0620.8320.5520.1919.7719.28

67

TABLE 15 Section SPB, 5VPower Rating P (kw) for arc of contact 180

NRPM


speed ratio

700950

14502850

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500260027002800290030003100320033003400350036003700380039004000

250 280 355 375 400 450

10.1713.1818.3825.41

1.773.344.826.237.598.90

10.1711.4112.6013.7614.8615.9216.9417.9018.8319.7020.5221.2821.9922.6423.2223.7424.1924.5824.9125.1525.3225.4025.4125.3425.1824.9324.5924.1623.64

11.9015.3821.3027.72

2.073.905.627.288.87

10.4111.9013.3414.7116.0417.3118.5319.6920.7821.8122.7723.6724.4825.2225.8726.4526.9327.3227.6327.8327.9327.9327.8127.5927.26

16.0720.2128.24

2.795.267.609.85

12.0014.0716.0717.9719.7721.4923.1124.6226.0327.3128.4829.5230.4131.1631.7632.2132.4932.6032.5332.2831.83

17.1421.9929.48

2.985.638.13

10.5212.8215.0317.1419.1521.0622.8724.5626.1327.5728.8930.0431.0631.9132.5933.1133.4333.5633.5033.2132.7231.99

18.4723.6131.32

3.216.078.78

11.3613.8416.2118.4720.6222.6524.5526.3227.9429.4230.7231.8732.8233.5934.1634.5034.6434.5334.2033.6032.7431.62

19.7325.3032.72

3.256.609.46

12.3214.7917.2619.7322.2024.1226.0527.9729.8930.9231.9632.9934.0234.3234.62

0.050.070.110.21

0.010.010.020.030.040.040.050.060.070.070.080.090.100.100.110.120.120.130.140.150.150.160.170.180.180.190.200.210.210.220.230.230.240.250.260.260.270.280.290.29

0.330.450.691.35

0.050.090.140.190.240.280.330.380.430.470.520.570.620.660.710.760.810.850.900.950.991.041.091.141.181.231.281.331.371.421.471.521.561.611.661.711.751.801.851.89

0.470.640.971.92

0.070.130.200.270.340.400.470.540.610.670.740.810.870.941.011.081.141.211.281.341.411.481.551.611.681.751.821.881.952.022.082.152.222.292.352.422.492.552.622.69

0.580.781.202.35

0.080.160.250.330.410.490.580.660.740.820.910.991.071.151.241.321.401.481.571.651.731.811.901.982.062.142.232.312.392.472.562.642.722.802.892.973.053.133.213.30

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57224

8.6611.2215.7122.64

1.522.864.115.316.477.588.669.71

10.7311.7112.6613.5814.4615.3016.1116.8717.6118.2918.9419.5420.1020.6021.0621.4721.8322.1322.3822.5622.7022.7722.7922.7222.6122.4222.1621.8221.4220.9420.3819.75

236

9.3712.1416.9524.01

1.643.084.445.736.988.209.37

10.5011.6012.6613.6814.6715.6116.5217.3818.2018.9719.7020.3721.0021.5822.0922.5522.9623.3123.5823.8023.9624.0524.0623.9923.8623.6523.3623.0022.8422.7121.99

265

10.6113.6719.0425.61

1.853.474.996.497.879.28

10.6111.8913.1414.3115.4916.4917.5818.5819.5220.3921.1921.9622.6523.2923.8424.3324.7625.1225.3925.5625.6225.6325.5125.48

315

13.8617.8824.5329.06

2.404.546.558.48

10.3412.1413.8615.5217.1218.6420.0921.4622.7523.9625.0726.0927.0327.8528.5629.1629.6530.0130.2530.3630.3230.1529.8329.3628.7327.94

500

22.0728.0734.56

3.304.509.20

13.9016.6219.3522.0724.7926.7228.6630.5932.5233.3434.1634.9835.80

68


69

NRPM


speed ratio

0.090.130.190.38

0.010.010.020.030.030.040.050.050.060.070.070.080.090.090.100.110.110.120.130.130.140.150.150.160.170.170.180.190.190.200.210.210.220.230.230.240.250.250.260.270.270.280.290.290.300.310.310.320.330.330.340.350.350.360.370.370.380.390.390.400.410.430.440.450.470.480.490.510.520.53

0.600.821.252.45

0.040.090.130.170.210.260.300.340.390.430.470.520.560.600.640.690.730.770.820.860.900.950.991.031.071.121.161.201.251.291.331.381.421.461.501.551.591.631.681.721.761.811.851.891.931.982.022.062.112.152.192.232.282.322.362.412.452.492.542.582.662.752.842.923.013.093.183.273.353.44

0.851.161.773.48

0.060.120.180.240.310.370.430.490.550.610.670.730.790.850.920.981.041.101.161.221.281.341.401.461.531.591.651.711.771.831.891.952.012.072.142.202.262.322.382.442.502.562.622.682.752.812.872.932.993.053.113.173.233.293.363.423.483.543.603.663.783.904.034.154.274.394.514.644.764.88

1.051.422.174.26

0.070.150.220.300.370.450.520.600.670.750.820.900.971.051.121.201.271.351.421.501.571.651.721.801.871.942.022.092.172.242.322.392.472.542.622.692.772.842.922.993.073.143.223.293.373.443.523.593.673.743.813.893.964.044.114.194.264.344.414.494.644.794.945.095.245.395.535.685.835.98

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57

700950

14502850

50100150200250300350400450500550600650700750800850900950

100010501100115012001250130013501400145015001550160016501700175018001850190019502000205021002150220022502300235024002450250025502600265027002750280028502900295030003100320033003400350036003700380039004000

224 250 315 355 375 400

10.0312.9617.8722.36

0.921.742.523.284.024.745.446.136.817.488.138.779.41

10.0310.6411.2311.8212.4012.9613.5114.0514.5715.0915.5816.0716.5417.0017.4517.8718.2918.6919.0719.4319.7820.1220.4320.7321.0121.2721.5121.7421.9422.1222.2922.4322.5522.6522.7322.7822.8122.8222.8122.7722.7022.6222.5022.3622.2022.0121.7921.2720.6419.8919.0218.0316.9115.6714.2912.7811.12

12.1515.7021.5625.39

1.102.093.033.954.845.716.577.418.249.059.84

10.6311.3912.1512.8913.6114.3215.0215.7016.3617.0117.6418.2618.8519.4319.9920.5321.0621.5622.0422.5022.9423.3623.7524.1324.4824.8025.1025.3825.6325.8526.0526.2126.3626.4726.5526.6126.6326.6226.5826.5126.4126.2826.1125.9025.6725.3925.0824.7424.3523.4722.4421.2419.8918.3616.6514.77

17.3122.2729.9326.21

1.542.954.295.606.888.139.36

10.5711.7512.9114.0415.1616.2517.3118.3619.3820.3721.3322.2723.1824.0624.9125.7326.5227.2727.9928.6729.3229.9330.5031.0331.5231.9632.3733.0533.3133.5433.7133.8333.9033.9233.8933.8033.6633.4633.2032.8832.5032.0731.5631.0030.3729.6728.9128.0827.1826.2125.1624.0421.5818.82

20.3926.1034.4023.53

1.813.475.066.618.129.60

11.0512.4813.8715.2316.5717.8719.1520.3921.6122.7823.9325.0326.1027.1328.1229.0729.9730.8331.6532.4133.1333.7934.4034.9635.4635.9036.2936.6136.8837.0737.2137.2737.2737.2037.0536.8336.5336.1635.7135.1834.5633.8633.0832.2131.2530.2029.0627.8226.4925.0623.5321.9020.1618.33

21.9027.9536.43

1.953.735.457.118.74

10.3311.8913.4214.9216.3817.8119.2120.5821.9023.1924.4525.6626.8327.9529.0330.0631.0531.9832.8733.6934.4635.1835.8336.4336.9637.4237.8238.1438.4038.5838.6938.7238.6838.5538.3438.0437.6637.1936.6335.9735.2234.3833.4332.3931.24

23.7630.2038.74

2.124.065.927.749.51

11.2412.9414.6016.2217.8119.3620.8722.3323.7625.1426.4827.7729.0130.2031.3332.4133.4334.3935.2836.1136.8837.5738.1938.7439.2139.6139.9240.1540.2940.3540.3140.1839.9639.6439.2238.7038.0737.3336.4935.5334.6633.2731.9630.5328.98

180

6.378.19

11.2614.70

0.611.151.652.142.613.063.513.944.374.785.195.595.986.376.757.127.487.848.198.538.869.199.519.82

10.1210.4210.7110.9911.2611.5211.7712.0212.2512.4812.6912.9013.1013.2813.4613.6313.7813.9314.0714.1914.3014.4014.4914.5714.6314.6914.7314.7614.7714.7714.7614.7414.7014.6514.5814.5014.2914.0313.7013.3112.8612.3411.7511.0910.36

9.50

200

8.0410.3814.3218.55

0.751.422.052.663.253.834.394.945.486.016.537.057.558.048.539.009.479.93

10.3810.8211.2511.6712.0812.4812.8713.2513.6213.9714.3214.6614.9815.3015.6015.8916.1616.4316.6816.9117.1417.3517.5417.7317.8918.0518.1818.3118.4118.5018.5818.6318.6718.7018.7118.6918.6618.6218.5518.4718.3618.2417.9317.5517.0816.5215.8815.1414.3213.3912.3711.25

236

11.0114.2319.6023.91

1.001.902.763.594.405.195.966.727.478.208.929.63

10.3311.0111.6812.3412.9813.6114.2314.8315.4216.0016.5617.1117.6418.1518.6519.1319.6020.0420.4720.8821.2821.6522.0022.3422.6522.9423.2223.4623.6923.9024.0824.2324.3724.4824.5624.6224.6524.6624.6324.5824.5124.4024.2724.1023.9123.6923.4323.1522.4821.6820.7419.6718.4517.0915.5813.9112.0810.09

280

14.5618.7825.5827.31

1.302.493.624.725.796.847.868.879.87

10.8411.8012.7313.6514.5615.4416.3117.1517.9818.7819.5720.3321.0721.7922.4822.1523.8024.4225.0125.5826.1226.6327.1127.5627.9828.3628.7229.0429.3329.5929.8029.9930.1330.2430.3130.3430.3230.2730.1830.0429.8629.6429.3729.0528.6928.2827.8227.3126.7526.1425.4824.0022.3120.3918.2415.85

450

27.3734.4642.61

2.454.706.878.98

11.0313.0415.0016.9218.7920.6122.3824.1025.7727.3728.9230.4131.8333.1834.4635.6636.7937.8338.7939.6740.4541.1441.7342.2242.6142.8943.0543.1143.0542.8642.5542.1241.5540.8540.0139.0337.9036.6335.2033.6231.88

500

30.8438.3845.36

2.795.357.81

10.2112.5414.8217.0419.2121.3123.3525.3327.2429.0830.8432.5334.1335.6437.0638.3839.6140.7341.7442.6343.4144.0644.5944.9845.2445.3645.3345.1544.8144.3243.6642.8341.8240.6439.2737.7235.97

560

31.4938.6443.39

2.835.407.86

10.4512.7415.0317.1919.3421.5923.8326.0828.3229.9031.4933.0734.6535.9837.3138.6439.9841.3142.6443.9745.3044.9244.5444.1543.7743.3943.0142.6242.24

630

34.1140.51

2.895.457.90

12.0014.6017.2019.6022.0024.1326.2528.3830.5032.3134.1135.9237.7238.6539.5840.5141.4442.3743.3044.2345.16

TABLE 17 Section SPCPower Rating P (kw) for arc of contact 180

70


speed ratioNRPM

700950

14502850

50100200300350400450500550600650700750800850900950

100010501100115012001250130013501400145015001550160016501700175018001850190019502000205021002150220022502300235024002450250025502600265027002750280028502900295030003050310031503200325033003350340034503500

200 236 265 280 300 315

9.1911.3615.11

1.112.123.564.815.466.046.567.157.628.098.639.199.59

10.0610.5210.9311.3611.7512.1612.6013.0113.3213.6314.0114.3814.6915.1115.3815.6615.9916.2616.4916.7817.1217.3617.5917.8818.0518.2118.4618.6318.7919.1819.2619.4219.91

12.0915.1120.0123.56

1.452.544.436.217.017.798.499.32

10.0610.7611.3212.0912.6613.2113.7814.3615.1115.6316.1616.6717.2117.7318.1818.6619.1619.6320.0120.5321.0921.4621.8322.2622.6622.9423.3623.5524.1624.2724.6424.9325.1125.5325.8126.0426.2126.5526.7326.8825.7624.8424.6824.3224.1824.0423.5623.0422.7922.5922.0421.9421.7921.6421.5221.0120.8620.7420.6819.72

14.8118.9625.4329.03

1.612.785.147.318.369.35

10.3911.2412.2913.1913.9914.8115.7316.5417.3118.1918.9619.7120.4321.1121.8322.4323.1223.7124.2924.8925.4325.8426.4326.9127.3327.6928.1528.4628.8629.1629.3229.6829.7329.8930.1430.3230.3930.3130.3130.3130.2930.2530.1830.0229.9529.8229.6829.4229.0328.8228.1727.9727.5427.5026.4326.1225.5624.9224.26

18.0523.0530.9633.13

1.763.296.128.75

10.0011.2312.4413.6214.7615.8916.9918.0519.1120.1321.1222.1023.0523.9724.8525.7326.5627.3728.1528.9029.6130.3030.9631.5732.1732.7333.2433.7234.1734.5934.9635.2935.5835.8436.0436.2236.3436.4236.4736.4636.4036.3036.1535.9535.7135.4135.0734.6634.2033.7033.1332.5131.8431.1030.3129.4628.5527.5726.54

20.2825.8834.63

1.963.676.839.79

11.2112.6013.9615.2816.5617.8319.0720.2821.4622.6123.7324.8225.8826.9027.9028.8629.7930.6931.5532.3833.1733.9234.6335.3135.9436.5337.0837.5938.0638.4738.8439.1739.4539.6739.8539.9840.0540.0740.0439.9539.8039.6039.3539.0238.6438.2037.7037.1336.49

21.9327.9737.30

2.113.957.37

10.5712.1113.6115.0816.5117.9119.2920.6221.9323.2124.4425.6526.8227.9729.0830.1431.1832.1733.1334.0534.9235.7636.5537.3038.0038.6639.2739.8340.3440.8041.2241.5741.8842.1342.3242.4642.5442.5542.5042.4042.2241.9941.6941.3240.8840.3839.7939.1438.4337.62

0.140.190.290.57

0.010.020.040.060.070.080.090.100.110.120.130.140.150.160.170.180.190.200.210.220.230.240.250.260.270.280.290.300.310.320.330.340.350.360.370.380.390.400.410.420.430.440.450.460.470.480.490.500.510.520.530.540.550.560.570.580.590.600.610.620.630.640.650.660.670.680.690.70

0.901.221.863.67

0.060.130.260.390.450.510.580.640.710.770.840.900.961.031.091.161.221.291.351.411.481.541.611.671.741.801.861.931.992.062.122.192.252.312.382.442.512.572.642.702.772.832.892.963.023.093.153.223.283.343.413.473.543.603.673.733.793.863.923.994.054.124.184.244.314.374.444.50

1.281.732.655.20

0.090.180.370.550.640.730.820.911.001.101.191.281.371.461.551.641.731.831.922.012.102.192.282.372.462.562.652.742.832.923.013.103.193.293.383.473.563.653.743.833.924.024.114.204.294.384.474.564.664.754.844.935.025.115.205.295.395.485.575.665.755.845.936.026.126.216.306.39

1.572.133.256.38

0.110.220.450.670.780.901.011.121.231.341.451.571.681.791.902.012.132.242.352.462.572.692.802.913.023.133.253.363.473.583.693.803.924.034.144.254.364.484.594.704.814.925.045.155.265.375.485.605.715.825.936.046.166.276.386.496.606.706.836.947.057.167.277.397.507.617.727.80

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57224

11.7214.8619.9223.11

1.202.234.085.786.597.388.148.899.62

10.3411.0311.7212.3813.0113.6514.2714.8615.4416.0216.5617.0917.6118.1118.5919.0519.5019.9220.3420.7321.1021.4621.7822.1022.3922.6622.9223.1423.3523.5323.7023.8323.9524.0424.1024.1524.1624.1624.1124.0623.9723.8623.7123.5423.3423.1122.8522.5722.2421.9021.5221.1020.6520.1819.6719.1318.5517.9417.29

250

14.6818.7025.1828.58

1.472.725.037.168.199.18

10.1511.1012.0312.9413.8214.6815.5216.3517.1617.9418.7019.4520.1720.8821.5622.2222.8623.4824.0724.6325.1825.6926.2026.6727.1027.5327.9128.2828.6228.9229.2029.4429.6729.8630.0230.1430.2330.2830.3130.3130.2630.1830.0629.9229.7229.5029.2328.9328.5828.2027.7827.3126.8026.2525.6525.0124.3323.6022.8322.0121.1520.23

335

24.1030.7140.71

2.314.328.09

11.6113.3114.9516.5818.1619.6921.2022.6724.1025.5026.8628.1829.4730.7131.9133.0734.1935.2736.3037.2738.2139.1039.9340.7141.4442.1242.7443.3043.8044.2544.6344.9645.2145.4045.5345.5845.5645.4845.3245.0844.7844.3943.9343.3842.75

355

26.2533.4043.97

2.504.708.80

12.6414.4916.3018.0519.7821.4623.0924.7026.2527.7629.2430.6832.0733.4034.7035.9437.1338.2739.3740.4041.3842.3043.1643.9744.7145.3946.0046.5547.0347.4347.7748.0348.2048.3248.3448.2848.1547.9247.6247.2246.7446.1745.4944.7243.86

TABLE 17 Section SPCPower Rating P (kw) for arc of contact 180

NRPM


speed ratio

700950

14502850

50100200300350400450500550600650700750800850900950

10001050110011501200125013001350140014501500155016001650170017501800185019001950200020502100215022002250

450 560 710 800 1000

36.1145.4257.06

3.426.45

12.1317.4720.0322.5224.9527.3229.6131.8534.0136.1138.1240.0641.9343.7145.4247.0348.5449.9751.3152.5353.6654.6855.5956.3857.0657.6158.0558.3558.5258.5658.4558.2257.8357.2956.5955.74

46.7057.5566.49

4.478.46

15.9322.9226.2629.5032.6535.6838.6141.4344.1346.7049.1651.4653.6455.6857.5559.2760.8262.2063.4064.4265.2565.8866.2966.5166.4966.25

59.5770.47

5.8711.1420.9830.1334.4538.6242.6046.4150.0253.4256.6259.5762.2864.7566.9468.8570.4771.7772.7673.3973.6873.6173.16

62.1472.42

11.8622.1931.7236.1340.5344.5548.5752.1755.7758.9662.1464.7567.3669.3871.3972.42

74.29

15.0628.1439.9945.3850.7655.4860.1964.1668.1271.2174.29

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57375

28.3836.0447.06

2.695.079.51

13.6615.6717.6219.5221.3823.2124.9826.7028.3830.0031.6033.1334.6136.0437.4138.7340.0041.1942.3443.4144.4345.3846.2647.0647.8048.4649.0449.5649.9950.3250.5950.7650.8550.8450.7450.5550.2549.8649.3848.79

400

30.9939.2650.69

2.935.53

10.3814.9417.1219.2621.3523.3925.3727.2929.1830.9932.7634.4736.1337.7239.2640.7242.1243.4644.7245.9147.0248.0649.0249.9050.6951.3952.0052.5352.9653.3053.5453.6653.6953.6153.4453.1352.7252.1951.5450.7849.88

500

41.0451.1862.17

3.907.37

13.8719.9622.8825.7328.4931.1733.7736.2838.7141.0443.2745.4047.4449.3751.1852.8854.4555.9157.2358.4259.4760.3861.1361.7362.1762.4562.5662.5162.2661.8561.23

630

52.9564.1468.75

5.129.71

18.3026.3130.1333.8137.3740.7944.0647.1950.1552.9555.5758.0260.2662.3164.1465.7667.1368.2869.1769.8170.1870.2670.0669.5568.7567.61

0.140.190.290.57

0.010.020.040.060.070.080.090.100.110.120.130.140.150.160.170.180.190.200.210.220.230.240.250.260.270.280.290.300.310.320.330.340.350.360.370.380.390.400.410.420.430.440.45

0.901.221.863.67

0.060.130.260.390.450.510.580.640.710.770.840.900.961.031.091.161.221.291.351.411.481.541.611.671.741.801.861.931.992.062.122.192.252.312.382.442.512.572.642.702.772.832.89

1.281.732.655.20

0.090.180.370.550.640.730.820.911.001.101.191.281.371.461.551.641.731.831.922.012.102.192.282.372.462.562.652.742.832.923.013.103.193.293.383.473.563.653.743.833.924.024.11

1.572.133.256.38

0.110.220.450.670.780.901.011.121.231.341.451.571.681.791.902.012.132.242.352.462.572.692.802.913.023.133.253.363.473.583.693.803.924.034.144.254.364.484.594.704.814.925.04

71

TABLE 18 Section 8VPower Rating P (kw) for arc of contact 180


speed ratioNRPM

700950

1450

50100150200250300350400450500550600650700750800850900950

1000105011001150120012501300135014001450150015501600165017001750180018501900195020002050210021502200

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57

0.280.380.59

0.020.040.060.080.100.120.140.160.180.200.220.240.260.280.300.320.340.360.380.400.420.440.460.490.510.530.550.570.590.610.630.650.670.690.710.730.750.770.790.810.830.850.870.89

1.832.483.79

0.130.260.390.520.650.780.911.051.181.311.441.571.701.831.962.092.222.352.482.612.742.883.013.143.273.403.533.663.793.924.054.184.314.444.574.704.844.975.105.235.365.495.625.75

2.603.525.38

0.190.370.560.740.931.111.301.481.671.862.042.232.412.602.782.973.153.343.523.713.904.084.274.454.644.825.015.195.385.575.755.946.126.316.496.686.867.057.237.427.617.797.988.16

3.184.326.60

0.230.450.680.911.141.361.591.822.052.272.502.732.963.183.413.643.874.094.324.554.785.005.235.465.695.916.146.376.606.827.057.287.517.737.968.198.428.648.879.109.339.559.78

10.01

355 400 450 475 500 530

29.2736.5946.00

2.965.517.90

10.1712.3714.4916.5418.5320.4622.3324.1625.9127.6329.2730.8632.3833.8535.2636.5937.8739.0740.2041.2742.2543.1744.0044.7545.4246.0046.4946.9047.2247.4347.5547.5847.4947.3147.0246.6246.1145.4844.7343.8742.88

35.5344.2854.61

3.566.599.41

12.2814.8817.4419.7822.4624.7327.2329.3131.4633.4935.5337.5439.2940.7842.5644.2845.7347.2248.4349.5750.7551.5952.4953.4554.2254.6155.0955.3855.4855.6255.4555.2354.7954.2353.6252.2451.4849.8049.2448.8446.09

43.4653.9264.91

4.288.03

11.5814.9718.2621.4324.5227.5030.4033.2035.9138.5241.0443.4645.7847.9950.0752.0653.9255.6557.2658.7360.0761.2662.3163.2063.9364.5064.9165.1465.2165.0864.7664.2663.5662.6461.5360.2158.6656.89

47.0558.1568.84

4.638.69

12.5416.2219.7923.2426.5829.8232.9635.9938.9241.7444.4647.0549.5351.8854.1156.2058.1559.9661.6163.1264.4665.6566.6467.4768.1268.5868.8468.9068.7568.3967.8167.0065.96

50.5762.2372.28

4.979.35

13.4917.4721.3025.0228.6232.1235.4938.7541.8844.9147.8150.5753.1955.6858.0260.2162.2364.0965.7867.2868.6269.7470.6871.4171.9372.2272.2872.1271.7271.0670.1668.9967.55

54.6966.9375.76

5.3810.1314.6418.9523.1227.1631.0734.8538.5042.0245.4048.6551.7554.6957.4960.1162.5764.8466.9368.8270.5171.9973.2574.2875.0975.6375.9475.9975.76

315

22.8128.7136.24

2.414.356.327.889.78

11.1713.0614.5516.1917.1518.8820.3621.5422.8124.0624.8126.4627.6228.7129.6830.6631.5232.4332.5133.7834.4535.3635.6236.2436.6237.2337.5437.6637.8537.9338.1237.9637.8337.6437.4637.0236.6436.0135.34

335

26.1732.7241.29

2.684.987.129.16

11.1113.0114.8416.6118.3320.0021.6223.1824.7126.1727.5828.9530.2631.5132.7233.8634.9435.9636.9337.8238.6539.4240.1140.7441.2941.7742.1742.4942.7442.8942.9742.9642.8642.6742.3942.0141.5440.9640.2939.52

375

32.3340.3950.47

3.246.058.68

11.1913.6215.9618.2420.4422.5924.6626.6728.6230.5132.3334.0835.7737.3938.9340.3941.7943.1044.3345.4946.5547.5248.4149.1949.8950.4750.9751.3551.6251.7951.8451.7851.5951.2850.8550.3049.6048.7747.8246.7145.47

425

39.8249.5560.52

3.947.37

10.6213.7216.7219.6222.4425.1727.8130.3932.8735.2737.5939.8241.9644.0045.9547.8049.5551.1952.7254.1355.4356.6157.6658.5859.3760.0260.5260.8961.1061.1561.0660.8060.3659.7658.9858.0156.8755.53

560

58.7371.4078.48

5.7910.9115.7720.4324.9329.2833.4837.5541.4845.2448.8752.3255.6258.7361.6764.4166.9569.2871.4073.2874.9476.3577.4978.3878.9979.3279.3479.0778.48

600

63.9576.9880.85

6.3311.9517.2722.3927.3232.0836.6941.1245.3849.4853.3957.1160.6363.9567.0369.8972.5174.8876.9878.8080.3581.5982.5183.1283.3883.3082.8782.0580.85

630

67.7380.87

6.7312.7218.4023.8529.1034.1739.0643.7648.2852.5956.7160.6264.2967.7370.9173.8376.4778.8280.8782.6084.0185.0785.7686.1086.04

670

70.3482.96

7.1513.4219.2824.7830.5435.8540.9145.8250.5354.9459.1163.2466.9170.3473.5876.2378.8180.8882.9684.3585.4686.3386.2486.1986.11

710

77.2489.94

7.8114.7721.3727.7033.7939.6545.2850.6755.8160.6965.2969.5873.5877.2480.5683.5086.0688.2189.9491.2292.0392.3692.1891.4889.32

750

79.1291.23

8.2215.3122.1328.6934.7940.9846.7253.2128.4362.4167.4371.4575.4679.1282.2184.9287.2389.2191.2393.3592.8492.8692.3191.9890.42

800

86.9097.65

9.0117.0524.6831.9838.9945.7052.1058.2063.9669.3574.3778.9983.1786.9090.1392.8595.0496.6497.6598.0397.7496.7895.0992.6491.43

72

TABLE 19 Section ZXPower Rating P (kw) for arc of contact 180

NRPM


speed ratio

700950

14502850

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500260027002800290030003100320033003400350036003700380039004000410042004300440045004600470048004900500051005200530054005500560058006000620064006600680070007200740076007800800082008400

50 63 80 90 100 112

0.350.440.600.94

0.070.120.180.230.270.320.350.400.430.460.500.500.550.590.620.640.680.700.720.750.780.800.820.850.870.890.900.930.950.970.981.011.031.041.061.071.101.111.121.141.151.161.181.191.211.221.231.241.251.271.281.291.291.301.311.321.331.341.371.381.391.391.401.411.411.411.411.411.411.41

0.490.620.851.34

0.090.180.250.320.370.430.490.540.600.640.690.690.780.820.870.920.950.991.031.061.111.141.181.211.241.281.301.331.371.391.421.451.481.501.541.561.581.601.631.651.671.701.721.741.761.791.801.821.841.851.881.891.901.921.931.941.982.002.022.032.062.072.082.092.102.102.112.112.112.10

0.660.841.151.85

0.120.240.330.420.500.590.660.730.800.870.940.941.061.121.191.241.301.341.401.461.501.561.601.651.701.741.791.831.881.911.951.992.032.072.102.142.172.202.242.272.312.332.362.382.422.442.462.492.522.542.552.582.602.622.632.662.692.712.732.762.772.782.792.792.792.792.782.772.752.72

0.760.961.322.12

0.150.270.370.470.580.670.760.840.920.991.071.071.221.291.361.421.491.551.621.671.731.791.841.901.952.002.062.102.152.192.252.282.332.372.422.452.502.532.572.602.632.672.702.732.762.792.812.842.872.892.922.942.952.972.993.013.043.063.073.103.103.113.113.103.083.063.043.012.98

0.851.081.492.40

0.170.310.430.540.640.750.850.951.041.121.211.211.381.461.531.601.671.751.821.891.942.012.082.142.142.252.312.362.422.472.522.572.622.672.712.752.792.842.872.922.952.983.023.053.073.113.133.163.193.213.233.243.273.293.303.313.333.363.363.373.363.363.333.313.283.213.173.093.04

0.961.221.682.69

0.190.340.490.610.730.850.961.071.181.281.371.371.561.641.731.811.901.982.062.122.202.272.342.412.472.542.602.672.722.782.842.892.942.993.043.083.133.183.213.253.293.323.363.393.413.453.473.493.513.543.563.573.583.593.603.623.633.633.623.603.573.543.493.453.38

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.5740

0.250.310.410.61

0.050.090.120.160.190.210.250.270.290.320.340.360.370.400.420.430.450.460.490.500.510.520.540.550.570.580.590.600.610.620.630.640.660.660.670.680.690.690.700.710.710.720.720.730.730.750.750.760.760.770.770.770.780.780.780.780.790.790.790.800.800.800.800.790.790.790.780.780.770.77

45

0.310.370.510.78

0.060.110.160.190.230.270.310.330.360.380.420.440.470.500.520.540.570.590.610.620.640.670.680.700.720.730.750.770.780.800.810.820.840.860.870.880.890.900.920.930.940.950.960.970.970.980.991.011.011.021.031.031.041.051.051.061.071.071.081.101.101.111.111.111.111.111.111.111.111.10

56

0.420.530.711.13

0.080.150.210.270.320.370.420.460.510.540.590.590.670.700.730.770.800.840.870.890.930.960.981.021.041.071.101.121.141.161.201.221.241.271.281.301.321.341.371.381.401.411.441.451.471.481.501.511.531.551.561.571.581.591.601.621.641.661.671.701.711.721.731.741.751.751.751.761.751.75

71

0.570.720.991.59

0.110.200.280.360.440.510.570.630.690.750.800.800.920.971.021.061.121.161.211.251.301.331.381.421.461.501.541.571.601.641.681.711.741.771.811.841.861.901.921.951.982.012.032.062.082.102.122.152.172.192.202.232.252.262.282.292.332.352.372.402.422.432.442.452.452.462.462.452.452.44

0.000.010.010.02

0.000.000.000.000.000.000.000.010.010.010.010.010.010.010.010.010.010.010.010.010.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.020.030.030.030.030.030.030.030.030.030.030.030.030.030.030.030.040.040.040.040.040.040.040.040.040.040.050.050.050.050.050.050.050.060.06

0.020.020.040.07

0.000.010.010.010.010.020.020.020.020.030.030.030.030.040.040.040.040.050.050.050.050.060.060.060.060.070.070.070.070.080.080.080.080.090.090.090.090.100.100.100.100.110.110.110.120.120.120.120.130.130.130.130.140.140.140.140.150.150.160.160.170.170.180.180.190.190.200.200.210.21

0.030.040.050.11

0.000.010.010.010.020.020.030.030.030.040.040.040.050.050.060.060.060.070.070.070.080.080.080.090.090.100.100.100.110.110.110.120.120.130.130.130.140.140.140.150.150.150.160.160.170.170.170.180.180.180.190.190.200.200.200.210.210.220.230.240.240.250.260.270.270.280.290.300.300.31

0.040.050.080.16

0.010.010.020.020.030.030.040.050.050.060.060.070.070.080.090.090.100.100.110.110.120.130.130.140.140.150.150.160.170.170.180.180.190.190.200.210.210.220.220.230.230.240.250.250.260.260.270.270.280.290.290.300.300.310.310.320.330.340.350.370.380.390.400.410.420.430.450.460.470.48

125

1.011.321.882.96

0.260.370.530.660.760.861.011.161.271.381.491.601.711.811.922.022.112.192.282.362.432.512.582.652.722.792.862.932.993.063.133.203.233.263.293.323.373.423.473.523.523.523.513.513.513.513.513.503.503.603.57

140

1.141.462.033.28

0.340.430.580.700.861.021.141.261.401.531.671.801.902.002.102.202.302.402.502.602.712.812.923.023.083.143.203.263.323.383.443.503.543.583.613.653.713.783.843.903.883.853.833.803.783.753.733.703.683.653.58

160

1.311.662.383.68

0.390.550.630.800.971.131.311.461.621.791.952.112.222.332.442.552.672.792.903.023.113.203.293.383.453.513.583.643.713.773.843.903.913.923.923.933.923.923.913.90

73

TABLE 20 Section AXPower Rating P (kw) for arc of contact 180

NRPM


speed ratio

700950

14502850

100200300400500600700800900

100011001200130014001500160017001800190020002100220023002400250026002700280029003000310032003300340035003600370038003900400041004200430044004500460047004800490050005100520053005400550056005700580059006000

80 95 106 112 118 125

1.111.391.852.70

0.240.420.590.740.871.001.111.231.331.441.531.631.721.811.891.962.042.112.182.252.312.372.432.492.542.582.642.682.722.762.802.842.872.902.932.952.983.003.023.033.053.073.073.083.093.093.093.083.083.073.063.053.033.012.992.972.942.922.892.86

1.471.842.483.73

0.300.550.760.961.131.301.471.621.761.912.052.172.302.422.532.652.752.862.963.063.153.233.323.403.483.563.623.703.763.823.873.943.994.034.074.124.164.194.224.254.274.294.324.334.344.354.354.354.344.344.334.314.284.264.234.204.174.134.084.04

1.722.162.934.43

0.360.630.881.111.321.521.721.902.082.252.402.562.712.862.993.133.273.383.513.623.743.843.954.044.144.234.324.404.474.554.624.684.754.804.854.904.954.995.025.055.085.105.125.135.155.155.155.135.125.115.095.075.045.004.964.914.864.814.754.68

1.862.333.174.81

0.380.680.951.201.431.651.862.052.252.432.602.772.933.093.243.393.533.663.803.934.044.164.274.384.484.584.674.774.854.925.005.075.135.205.255.305.365.405.435.465.485.505.525.535.535.535.535.525.505.485.455.425.395.335.28

1.982.513.405.17

0.410.721.021.281.531.761.982.212.402.602.792.973.153.323.493.643.803.954.084.224.354.474.604.714.824.925.035.125.215.295.385.455.515.585.645.695.735.785.825.845.875.885.905.905.905.905.885.875.845.815.785.735.685.625.55

2.142.713.685.58

0.430.781.091.381.651.902.142.372.592.813.013.213.403.593.773.944.114.264.414.564.704.844.975.095.215.325.435.525.625.715.805.875.946.016.066.116.166.206.246.266.286.296.306.306.296.286.256.236.186.14

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.5763

0.700.861.091.46

0.160.280.390.470.560.630.700.770.830.880.930.991.031.071.111.161.191.221.251.281.311.331.351.381.401.421.441.451.461.471.481.491.491.501.501.501.501.501.501.501.491.481.481.471.451.441.431.411.401.381.351.331.301.281.261.231.201.171.131.10

71

0.901.111.452.06

0.200.350.480.600.700.810.900.991.071.141.221.291.351.421.481.541.601.651.701.741.791.831.871.911.941.972.012.042.072.092.122.142.152.172.192.212.222.232.242.252.252.252.252.252.252.252.242.232.222.212.192.172.152.142.112.092.072.042.011.97

90

1.351.692.273.39

0.280.500.700.881.051.211.351.491.631.751.882.002.112.222.322.432.522.612.702.792.882.953.023.103.173.233.313.363.423.483.533.583.623.663.713.743.783.813.833.863.893.903.923.933.943.953.953.953.953.943.933.923.903.873.853.823.803.763.733.69

100

1.591.982.694.05

0.330.590.821.031.221.411.591.751.912.062.212.352.492.632.752.872.983.103.213.323.413.523.613.703.783.863.954.024.084.164.224.284.344.394.444.484.534.564.604.624.654.674.694.704.714.734.734.734.714.704.684.674.644.624.594.554.504.464.414.36

0.020.030.040.09

0.000.010.010.010.020.020.020.020.030.030.030.040.040.040.050.050.050.050.060.060.060.070.070.070.080.080.080.090.090.090.090.100.100.100.110.110.110.120.120.120.120.130.130.130.140.140.140.150.150.150.160.160.160.160.170.170.170.180.180.18

0.080.110.170.33

0.010.020.030.050.060.070.080.090.100.110.130.140.150.160.170.180.200.210.220.230.240.250.260.280.290.300.310.320.330.340.360.370.800.390.400.410.420.440.450.460.470.480.490.510.520.530.540.550.560.570.590.600.610.620.630.640.650.670.680.69

0.120.160.240.47

0.020.030.050.070.080.100.120.130.150.170.180.200.220.230.250.260.280.300.310.330.350.360.380.400.410.430.450.460.480.500.510.530.550.560.580.600.610.630.650.660.680.700.710.730.740.760.780.790.810.830.840.860.880.890.910.930.940.960.980.99

0.160.240.370.73

0.030.050.080.100.130.150.180.210.230.260.280.310.330.360.380.410.440.460.490.510.540.560.590.620.640.670.690.720.740.770.800.820.850.870.900.920.950.981.001.031.051.081.101.131.151.181.211.231.261.281.311.331.361.391.411.441.461.491.511.54

132

2.302.903.955.96

0.460.831.171.471.762.042.302.542.783.013.233.443.653.854.044.224.404.574.744.895.045.195.325.465.585.705.815.916.026.116.206.276.346.416.476.516.556.596.636.656.666.666.666.656.636.606.576.536.486.42

140

2.473.124.256.39

0.490.891.251.591.892.182.472.742.993.243.483.713.934.154.354.554.744.925.095.265.425.585.725.866.006.126.246.346.456.546.636.706.776.846.896.946.977.007.027.047.057.047.026.996.96

150

2.683.394.626.90

0.540.971.351.722.062.372.682.973.263.533.784.034.274.504.734.955.155.345.535.715.886.056.216.356.496.626.746.856.957.057.137.217.287.337.387.417.447.477.477.477.467.437.397.357.29

160

2.893.654.987.38

0.581.041.461.852.222.562.893.213.513.804.084.354.614.865.095.325.545.755.956.146.336.506.676.816.967.097.217.337.427.527.607.687.737.787.817.847.857.857.847.82

180

3.314.185.688.23

0.661.191.672.112.532.933.313.664.014.354.664.975.265.545.816.076.316.546.766.977.177.357.527.687.827.968.078.188.278.358.418.468.498.528.52

200

3.784.816.84

10.92

0.751.261.722.262.983.693.784.304.705.105.505.906.256.606.957.307.647.988.318.658.959.259.559.85

10.0810.3010.5310.7510.9811.2011.4311.6511.7111.78

74

TABLE 21 Section BXPower Rating P (kw) for arc of contact 180

NRPM


speed ratio

700950

14502850

100200300400500600700800900

10001100120013001400150016001700180019002000210022002300240025002600270028002900300031003200330034003500360037003800390040004100420043004400450046004700480049005000

106 118 132 140 160 180

2.302.893.915.87

0.470.851.191.491.772.052.302.542.783.003.213.423.623.813.994.174.354.504.664.824.975.105.245.375.485.605.715.825.916.016.106.176.266.326.386.456.506.546.586.626.656.676.696.696.706.696.686.676.646.60

2.693.384.596.93

0.550.991.381.732.072.382.692.973.243.523.774.014.254.474.694.905.115.315.505.685.856.026.176.336.486.626.746.876.987.107.197.297.387.467.537.597.657.717.747.787.807.827.837.837.827.807.787.757.717.65

3.123.955.378.09

0.631.131.592.012.392.773.123.473.794.104.404.684.975.245.495.745.996.226.446.656.857.057.227.407.577.737.898.028.158.278.398.498.588.668.748.818.868.908.948.968.978.988.978.958.918.878.818.758.678.58

3.374.265.808.72

0.681.221.712.162.582.983.373.744.084.434.765.065.375.665.936.216.476.716.957.187.407.607.807.998.178.348.498.648.788.909.029.129.229.309.389.439.489.519.539.549.549.539.519.479.42

3.985.036.85

10.15

0.801.442.012.543.053.523.984.414.835.235.625.996.346.697.017.337.637.928.208.468.728.959.179.389.589.759.92

10.0810.2210.3410.4610.5510.6310.7010.7410.7710.7910.7910.7710.7410.6910.6210.5310.4210.29

4.575.787.85

11.40

0.911.642.302.923.504.044.575.075.546.016.456.887.287.678.048.408.749.069.379.669.93

10.1910.4310.6510.8511.0311.1911.3411.4711.5711.6711.7311.7811.8011.8011.7911.7511.6911.6011.49

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.5790

1.772.222.964.36

0.380.670.931.171.391.591.771.962.132.302.462.612.752.843.023.163.283.393.513.623.723.823.924.014.104.184.254.334.404.464.524.584.634.684.734.774.804.834.864.884.904.914.924.944.944.924.924.914.894.87

100

2.112.643.565.31

0.440.791.091.371.631.882.112.332.542.742.933.123.303.483.633.793.954.104.244.384.504.634.754.864.985.085.185.275.365.445.525.605.665.725.795.845.885.925.966.006.026.046.066.076.076.076.066.056.036.01

112

2.493.144.256.41

0.510.911.281.611.922.222.492.763.013.263.503.723.944.154.354.554.744.915.085.255.415.575.715.855.996.116.246.356.466.566.666.746.836.906.977.047.097.147.187.217.257.277.287.297.287.287.267.237.207.16

125

2.913.664.987.52

0.591.061.481.872.242.572.913.213.523.814.084.364.614.865.105.335.555.765.976.166.356.546.716.887.047.187.327.467.587.707.807.917.998.078.158.228.278.338.368.398.418.428.428.428.408.378.348.288.238.16

0.030.040.070.13

00.010.010.020.020.030.030.040.040.050.050.060.060.070.070.070.080.080.090.09

0.10.1

0.110.110.120.130.130.140.140.150.150.150.160.160.170.170.180.180.190.190.200.200.210.210.220.220.220.230.23

0.120.170.26

0.5

0.020.040.050.070.090.110.120.140.160.180.190.210.230.250.260.28

0.30.320.330.350.370.390.410.420.440.460.480.490.510.530.550.560.58

0.60.620.630.650.670.690.710.720.740.760.780.790.810.830.850.860.88

0.180.240.370.72

0.030.050.08

0.10.130.150.18

0.20.230.250.280.310.330.360.380.410.430.460.480.510.530.560.580.610.640.660.690.710.740.760.790.810.840.860.890.920.940.970.991.021.041.071.091.121.141.171.191.231.251.27

0.280.370.571.12

0.040.080.120.16

0.20.240.280.320.350.390.430.470.510.550.590.630.670.710.750.790.830.870.910.950.991.021.06

1.11.141.181.221.26

1.31.341.381.421.46

1.51.541.581.621.651.691.731.771.811.851.891.931.97

190

4.856.148.35

11.96

0.971.742.453.103.724.294.855.395.906.386.867.317.748.158.548.919.279.619.92

10.2310.5010.7611.0011.2211.4211.6011.7711.9112.0112.1112.1812.2212.2412.2412.21

200

5.156.518.82

12.46

1.021.852.593.293.944.565.155.706.256.767.267.738.188.619.039.429.79

10.1310.4710.7711.0611.3211.5611.7811.9712.1512.3012.4112.5212.5912.6312.6512.6412.6012.54

212

5.486.939.38

13.01

1.091.962.763.504.204.855.486.086.667.207.738.238.709.169.60

10.0010.3810.7411.0911.3911.6911.9512.1812.4012.5812.7412.8612.9713.0413.07

224

5.827.359.92

13.46

1.162.092.933.724.455.165.826.467.067.648.198.729.229.69

10.1410.5610.9611.3311.6811.9912.2712.5412.7712.9713.1413.2713.3713.4413.4813.48

250

6.538.24

11.0514.17

1.302.343.304.175.005.796.537.237.928.569.179.74

10.2910.7911.2811.7312.1412.5212.8613.1713.4413.6713.8614.0214.1314.2014.2314.2114.1414.04

280

7.339.22

12.24

1.462.643.714.695.626.507.338.128.869.57

10.2410.8611.4511.9912.4812.9513.3613.7314.0514.3214.5514.7214.8514.9114.93

315

8.9511.4015.31

1.522.703.785.576.747.908.95

10.0010.9111.8312.7413.6514.3014.9515.6016.2516.6417.0317.4117.8017.7817.7517.7317.70

75

TABLE 22 Section CXPower Rating P (kw) for arc of contact 180


speed ratioNRPM

700950

14502850

50100150200250300350400450500550600650700750800850900950

100010501100115012001250130013501400145015001550160016501700175018001850190019502000205021002150220022502300235024002450250025502600265027002750280028502900295030003050310031503200325033003350340034503500

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57

0.060.080.130.25

0.000.010.010.020.020.030.030.040.040.040.050.050.060.060.070.070.070.080.080.090.090.100.100.110.110.110.120.120.130.130.140.140.150.150.150.160.160.170.170.180.180.180.190.190.200.200.210.210.220.220.220.230.230.240.240.250.250.260.260.260.270.270.280.281.080.290.290.300.300.31

0.230.320.480.95

0.020.030.050.070.080.100.120.130.150.170.180.200.220.230.250.270.280.300.320.330.350.360.380.400.410.430.450.460.480.500.510.530.550.560.580.600.610.630.650.660.680.700.710.730.750.760.780.800.810.830.850.860.880.900.910.930.950.960.980.991.011.031.041.061.551.091.111.131.141.16

0.330.450.691.36

0.020.050.070.100.120.140.170.190.220.240.260.290.310.330.360.380.410.430.450.480.500.530.550.570.600.620.650.670.690.720.740.770.790.810.840.860.880.910.930.960.981.001.031.051.081.101.121.151.171.201.221.241.271.291.321.341.361.391.411.431.461.481.511.532.411.581.601.631.651.67

0.520.701.072.11

0.040.070.110.150.190.220.260.300.330.370.410.440.480.520.560.590.630.670.700.740.780.820.850.890.930.961.001.041.071.111.151.191.221.261.301.331.371.411.451.481.521.561.591.631.671.701.741.781.821.851.891.931.962.002.042.082.112.152.192.222.262.302.332.370.292.452.482.522.562.59

160 200 250 280 315 335

6.057.64

10.3815.18

0.671.221.712.182.643.063.483.874.254.635.005.365.706.056.386.717.027.347.647.958.248.538.819.099.369.639.88

10.1410.3810.6410.8711.1111.3311.5511.7711.9812.1912.3912.5912.7812.9713.1513.3213.4913.6513.8113.9714.1114.2514.3914.5214.6514.7614.8814.9815.0815.1815.2715.3515.4215.5015.5615.6215.6815.7215.7615.7915.8115.8315.84

7.9710.0913.6619.06

0.871.592.242.863.444.014.565.085.606.096.587.067.527.978.418.849.279.68

10.0910.4810.8711.2511.6211.9812.3412.6813.0213.3513.6613.9814.2814.5714.8715.1415.4115.6815.9316.1716.4116.6316.8517.0617.2617.4516.5817.8117.9718.1218.2718.4018.5218.6418.7418.8418.9218.9919.0619.1119.1519.1819.2019.2019.2019.1919.16

10.2612.9617.37

1.112.032.883.664.435.165.866.547.207.858.479.089.68

10.2610.8311.3811.9212.4412.9613.4613.9414.4214.8815.3315.7616.1816.5916.9917.3717.7318.0918.4318.7619.0719.3719.6619.9320.1820.4220.6420.8522.1021.2321.3921.5421.6721.7821.8721.9622.0222.0622.0822.0922.0822.05

11.5814.6019.37

1.252.293.244.155.015.836.637.398.148.879.58

10.2610.9311.5812.2212.8313.4414.0214.6015.1415.6816.2016.7117.1917.6618.1118.5518.9719.3719.7620.1320.4820.8121.1221.4121.6821.9522.1822.4022.5922.7622.9223.0523.1623.2523.3223.3623.3823.3823.35

13.0716.4121.49

1.422.593.684.695.666.597.508.379.21

10.0310.8311.5912.3513.0713.7914.4715.1415.7816.4117.0117.6018.1718.7019.2319.7220.2020.6521.0821.4921.8822.2522.5922.9023.1823.4523.6923.9024.0924.2424.3724.4824.5524.5924.6024.59

13.9017.4122.61

1.512.763.925.006.047.027.998.919.81

10.6811.5212.3413.1413.9014.6515.3716.0816.7617.4118.0418.6519.2319.7820.3220.8321.3221.7722.2022.6122.9823.3323.6623.9524.2124.4424.6424.8224.9625.0625.15

140

5.056.378.64

12.77

0.571.031.451.842.222.572.923.243.573.894.194.484.775.055.325.605.866.126.376.636.877.117.347.577.798.018.228.448.648.859.059.249.439.629.809.98

10.1510.3210.4910.6510.8010.9611.1111.2611.3911.5411.6711.8011.9212.0412.1612.2712.3812.4812.5912.6812.7712.8612.9413.0213.0913.1613.2313.2813.3513.3913.4413.4813.5113.55

150

5.557.019.52

14.01

0.621.121.592.022.432.813.193.563.924.264.604.925.245.555.866.156.456.737.017.297.567.828.098.348.588.829.069.299.529.759.96

10.1910.4010.5910.7910.9911.1811.3711.5511.7311.9112.0812.2312.3912.5512.6912.8412.9813.1113.2413.3713.4913.6013.7113.8213.9114.0114.1014.1914.2714.3414.4114.4714.5314.5814.6314.6714.7114.7314.76

180

7.028.88

12.0617.28

0.771.401.972.523.053.544.024.484.945.385.806.226.637.027.417.798.168.538.889.239.589.91

10.2410.5610.8811.1811.4811.7712.0612.3412.6212.8813.1513.4013.6413.8814.1214.3414.5614.7714.9815.1815.3715.5615.7415.9116.0716.2216.3716.5216.6416.7716.8817.0017.0917.1917.2817.3617.4317.4917.5517.5917.6217.6517.6717.6817.6817.6717.6617.63

224

9.0811.4915.5020.73

0.991.802.543.243.924.575.195.806.376.957.508.048.579.089.59

10.0810.5611.0311.4911.9412.3712.8013.2213.6214.0214.4114.7815.1415.5015.8416.1716.5016.8117.1017.4017.6717.9418.2018.4518.6818.9019.1119.3119.4919.6719.8219.9720.1120.2320.3420.4320.5220.5920.6420.6920.7220.7320.7320.7220.69

355

14.7218.3823.63

1.602.934.155.306.417.468.479.45

10.4111.3212.2113.0713.9114.7215.5016.2616.9917.6918.3819.0319.6620.2520.8221.3621.8722.3522.8223.2423.6323.9924.3224.6124.8725.1125.31

400

16.5020.4425.62

1.813.314.685.997.218.409.54

10.6511.7112.7313.7214.6815.6016.5017.3518.1818.9619.7220.4421.1321.7822.4022.9723.5224.0124.4824.9125.2825.6225.9226.1826.3826.5426.6626.72

450

18.3622.5527.30

2.033.725.266.728.119.43

10.7011.9313.1014.2415.3416.3917.4018.3619.2920.1721.0121.8022.5523.2523.9124.5225.0725.5826.0326.4326.7827.0727.3027.47

500

20.1324.4526.78

2.264.125.837.448.98

10.4411.8313.1814.4715.7116.8818.0219.1020.1321.1122.0322.8923.7024.4525.1425.7726.3326.8427.2727.6425.5826.0326.4326.7827.07

630

24.2328.35

2.815.157.279.26

11.1512.9514.6516.2617.8119.2620.6321.9223.1224.2325.2526.1827.0127.7328.3528.8629.2629.5529.7029.7529.65

76

TABLE 23 Section XPZ, 3VXPower Rating P (kw) for arc of contact 180

NRPM


speed ratio

700950

14502850

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500260027002800290030003100320033003400350036003700380039004000410042004300440045004600470048004900500051005200530054005500560058006000620064006600680070007200740076007800800082008400

60 71 85 90 95 100

0.740.941.292.07

0.140.260.370.470.560.650.740.830.900.981.051.121.191.251.321.391.451.511.571.631.681.741.791.851.901.952.002.052.092.152.192.232.282.312.352.402.432.482.512.542.572.622.652.672.712.742.772.792.832.852.872.902.932.952.972.993.033.063.093.113.143.163.173.183.183.193.183.183.173.15

1.021.321.843.05

0.200.350.510.650.780.901.021.141.251.381.471.581.681.791.891.982.082.182.272.352.442.532.612.702.772.862.943.013.093.163.233.313.383.443.513.583.643.713.763.833.883.954.004.064.114.164.214.264.314.364.404.444.494.534.584.614.694.754.814.864.924.964.995.035.055.075.085.085.085.07

1.391.782.524.26

0.250.470.670.861.051.221.391.551.711.862.012.172.312.452.602.732.862.993.123.263.383.513.633.743.863.984.094.204.314.424.524.634.734.834.935.035.125.205.305.395.475.565.635.725.805.875.946.026.086.166.236.286.356.406.476.526.626.726.806.886.947.017.057.087.127.137.147.147.127.10

1.521.962.764.68

0.280.520.740.941.131.331.521.691.872.042.202.372.532.682.842.993.143.293.433.583.713.853.984.114.254.374.504.624.744.854.975.085.205.315.415.525.625.735.835.926.026.116.196.286.376.466.536.616.696.776.836.916.977.037.107.157.267.377.467.547.607.667.707.747.777.787.777.767.737.69

1.642.123.005.09

0.300.560.791.011.231.441.641.842.022.212.402.572.752.923.093.263.413.583.733.884.044.184.334.484.624.754.905.035.165.295.415.535.675.785.906.026.136.246.346.456.556.646.746.846.937.027.117.197.277.357.437.507.577.657.707.777.897.998.078.158.238.278.328.358.368.368.358.328.278.22

1.762.283.235.50

0.320.590.851.091.321.551.761.982.182.392.572.772.963.153.333.513.693.864.034.194.364.524.684.834.985.145.285.435.585.715.855.986.126.256.376.496.616.736.856.967.077.177.287.387.487.587.677.767.847.928.018.098.158.238.298.368.478.588.678.758.808.868.898.908.908.898.868.818.758.67

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.5750

0.410.510.681.08

0.110.140.210.250.310.360.410.460.490.520.550.580.620.660.690.730.760.800.830.860.890.920.950.981.001.031.051.071.091.121.141.161.181.211.231.261.281.301.331.351.371.391.411.431.451.461.481.501.521.541.551.571.581.601.611.621.641.651.671.681.691.691.701.701.711.711.721.721.731.73

56

0.640.801.091.71

0.130.230.320.410.480.560.640.700.770.830.890.951.001.061.111.171.221.271.311.361.411.451.501.531.571.621.651.681.731.761.791.831.861.891.931.961.982.012.042.072.092.112.132.162.192.202.222.242.272.282.302.312.332.342.352.382.402.422.432.442.452.462.462.462.452.452.442.422.402.38

63

0.811.051.442.34

0.150.290.410.520.630.730.810.911.001.081.171.241.331.411.471.551.621.691.761.831.891.962.022.082.152.202.262.312.372.422.482.532.572.632.672.722.772.822.862.902.942.983.033.063.103.143.173.203.233.273.303.333.363.393.413.443.493.533.583.613.643.663.693.703.723.723.723.723.713.70

80

1.251.622.283.83

0.230.430.620.780.951.111.251.411.551.691.831.962.092.222.342.462.592.712.832.943.053.163.273.383.483.593.693.783.883.974.074.164.264.354.434.514.604.684.764.844.924.995.065.145.205.275.345.405.475.535.595.645.705.755.815.855.956.046.126.186.256.306.356.396.416.446.456.466.456.44

0.010.010.020.04

0.000.000.000.000.010.010.010.010.010.010.010.010.020.020.020.020.020.020.020.020.030.030.030.030.030.030.030.030.040.040.040.040.040.040.040.040.050.050.090.050.050.050.050.050.060.060.060.060.060.060.060.060.070.070.070.070.070.070.080.080.080.080.090.090.090.090.100.100.100.10

0.060.080.120.23

0.010.020.020.030.040.050.060.060.070.080.090.100.100.110.120.130.140.140.150.160.170.180.180.190.200.210.220.220.230.240.250.260.260.270.280.290.300.300.310.320.330.340.340.350.360.370.380.380.390.400.410.420.420.430.440.450.460.480.500.510.530.540.560.580.590.610.620.640.660.67

0.080.110.160.32

0.010.020.030.050.060.070.080.090.100.110.120.140.150.160.170.180.190.200.220.230.240.250.260.270.280.300.310.320.330.340.350.360.370.390.400.410.420.430.440.450.470.480.490.500.510.520.530.540.560.570.580.590.600.610.620.640.660.680.700.730.750.770.790.820.840.860.890.910.930.95

0.100.132.000.40

0.010.030.040.060.070.080.100.110.030.140.150.170.180.190.210.220.240.250.260.280.290.310.320.330.350.360.380.390.400.420.430.450.460.470.490.500.520.530.540.560.570.580.600.610.630.640.650.670.680.700.710.720.740.750.770.780.810.840.860.890.920.950.971.001.031.061.091.111.141.17

112

2.062.673.806.46

0.370.690.991.281.541.802.062.312.552.793.033.253.483.703.914.114.324.534.734.935.125.315.505.685.866.046.216.386.556.716.867.037.177.337.477.617.767.898.028.158.278.398.508.628.738.838.939.039.139.229.309.389.469.539.599.669.779.879.94

10.0010.0310.0510.0510.03

9.989.919.829.71

125

2.383.094.407.47

0.430.791.141.461.782.092.382.672.953.223.503.764.024.274.524.765.015.255.495.705.936.156.366.576.786.997.187.377.567.747.938.118.278.458.618.778.929.089.229.359.499.639.759.879.98

10.0910.2010.3010.3810.4710.5610.6410.7010.7710.8410.8910.9811.0411.0911.1011.0911.0410.98

140

2.743.565.078.58

0.500.911.311.682.052.402.743.083.403.724.034.334.634.935.215.505.786.056.316.586.837.087.337.577.808.038.258.478.698.909.109.309.489.679.85

10.0210.1910.3410.4910.6510.7910.9211.0411.1711.2911.3911.5011.5811.6711.7511.8111.8811.9411.9812.0212.0612.0912.1012.0712.00

160

3.224.185.959.99

0.571.071.541.982.412.823.223.613.994.374.735.095.455.796.136.456.787.107.407.708.008.288.578.849.119.369.619.87

10.1010.3310.5510.7710.9811.1811.3611.5411.7211.8812.0312.1812.3112.4412.5612.6712.7612.8512.9413.0013.0613.1013.1313.1713.1813.1813.17

180

3.694.796.81

11.29

0.661.221.762.272.753.223.694.144.585.015.425.836.236.627.017.387.748.108.458.799.119.449.75

10.0410.4510.6310.9011.1711.4211.6611.8912.1112.3212.5312.7212.8913.0613.2113.3513.4913.6013.7113.7913.8713.9313.9814.0114.0414.0514.04

200

4.155.397.65

12.50

0.741.381.982.553.103.634.154.655.155.626.096.567.007.447.858.278.689.089.459.82

10.1910.5310.8711.1911.5111.8012.0912.3612.6312.8713.1013.3213.5313.7213.8914.0614.2014.3214.4414.5314.6114.6714.7214.7414.75

77

TABLE 24 Section XPAPower Rating P (kw) for arc of contact 180

NRPM


speed ratio

700950

14502850

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500260027002800290030003100320033003400350036003700380039004000410042004300440045004600470048004900500051005200530054005500560057005800590060006100620063006400650066006700680069007000

75 85 95 100 106 112

1.051.331.852.96

0.200.370.530.660.800.921.051.171.281.391.491.601.701.801.891.982.082.162.252.332.422.502.572.652.722.792.872.932.993.063.123.183.233.293.343.393.443.493.533.573.613.653.693.723.753.783.813.833.853.873.903.913.933.943.953.953.953.963.953.953.943.943.923.913.893.873.843.823.793.76

1.551.972.864.93

0.280.520.780.971.181.421.551.781.932.122.222.392.622.782.933.163.293.393.563.733.893.994.184.324.434.534.684.884.975.065.195.325.455.585.735.886.016.136.216.286.366.446.556.666.756.836.947.057.117.167.157.247.297.317.357.417.467.497.527.547.587.587.597.617.637.597.577.547.537.52

1.922.563.596.34

0.350.650.931.181.431.671.922.152.392.682.833.123.293.493.723.934.164.294.584.784.935.165.345.495.695.886.096.236.396.546.726.897.067.236.415.596.697.787.968.138.218.298.478.658.778.898.969.049.119.219.299.369.429.489.519.589.629.689.719.759.769.799.819.839.839.819.789.719.659.59

2.072.693.846.56

0.370.690.991.271.541.812.072.322.572.813.053.283.513.733.954.174.384.594.805.005.205.395.585.765.946.136.306.486.656.806.977.137.287.437.577.727.857.998.128.248.368.488.598.698.808.909.009.089.179.259.329.399.469.519.579.629.669.709.739.779.799.809.819.829.829.819.809.789.749.71

2.353.094.497.84

0.410.761.121.441.762.092.352.662.933.233.563.784.114.334.584.885.135.385.645.896.146.386.596.837.047.297.497.697.918.138.358.568.768.969.169.369.569.759.91

10.0710.2610.4410.5910.7410.9211.0911.2311.3611.3911.4211.4611.5411.6111.6711.7111.7511.7811.8811.9512.0212.0412.0612.0912.1212.0912.0412.0111.9811.8711.89

2.553.334.788.22

0.450.841.211.551.902.232.552.873.183.493.784.074.364.644.925.205.465.725.996.246.496.746.987.217.447.687.908.128.338.548.748.949.149.319.509.689.85

10.0210.1710.3310.4810.6310.7610.9011.0311.1411.2611.3611.4711.5611.6411.7311.8011.8711.9311.9812.0212.0612.1012.1212.1412.1412.1412.1412.1212.1012.0612.0211.9711.92

0.020.030.040.08

0.000.010.010.010.010.020.020.020.030.030.030.040.040.040.040.050.050.050.060.060.060.060.070.070.070.080.080.080.080.090.090.090.100.100.100.110.110.110.110.120.120.120.130.130.130.130.140.140.140.150.150.150.160.160.160.160.170.170.170.180.180.180.180.190.190.190.200.200.200.21

0.130.180.270.54

0.020.040.060.080.090.110.130.150.170.190.210.230.250.270.280.300.320.340.360.380.400.420.440.450.470.490.510.530.550.570.590.610.630.640.660.680.700.720.740.760.780.800.810.830.850.870.890.910.930.950.970.981.001.021.041.061.081.101.121.141.161.171.191.211.231.251.271.291.311.33

0.190.260.390.77

0.030.050.080.110.130.160.190.220.240.270.300.320.350.380.400.430.460.480.510.540.560.590.620.650.670.700.730.750.780.810.830.860.890.910.940.970.991.021.051.081.101.131.161.181.211.241.261.291.321.341.371.401.421.451.481.511.531.561.591.611.641.671.691.721.751.771.801.831.861.88

0.230.310.480.94

0.030.070.100.130.160.200.230.260.300.330.360.400.430.460.490.530.560.590.630.660.690.730.760.790.820.860.890.920.960.991.021.051.091.121.151.191.221.251.291.321.351.381.421.451.481.521.551.581.621.651.681.711.751.781.811.851.881.911.941.982.012.042.082.112.142.182.212.242.272.31

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.5763

0.550.690.901.27

0.110.260.320.370.430.480.550.620.670.720.760.810.850.880.920.950.991.041.081.121.141.161.171.191.211.231.241.261.281.301.311.331.341.361.371.381.381.391.391.391.381.381.371.361.361.351.341.331.331.321.301.291.271.251.241.221.201.181.171.15

71

0.881.111.522.37

0.180.320.450.570.670.780.880.981.071.161.241.321.411.481.551.631.701.771.841.901.962.032.082.142.192.252.302.342.392.442.482.522.562.602.642.672.712.732.762.792.812.842.862.882.902.912.932.942.952.962.962.962.972.962.962.962.952.942.932.922.902.892.872.852.812.792.762.732.692.66

80

1.251.612.253.70

0.240.430.620.790.951.101.251.401.541.681.811.942.072.182.312.432.542.662.762.882.983.093.183.293.383.483.563.653.743.823.913.994.064.144.214.284.354.424.484.544.604.654.704.764.814.854.894.944.985.015.045.075.095.115.135.165.185.195.205.205.215.215.205.205.195.185.165.135.115.09

90

1.662.153.065.15

0.300.560.801.031.251.461.661.862.062.252.442.612.792.963.143.313.473.633.793.944.104.244.394.544.674.814.955.085.215.335.465.585.695.815.926.036.136.236.336.436.516.606.696.776.856.926.997.067.127.187.257.307.347.397.427.477.507.537.557.577.597.607.617.617.617.617.607.597.577.55

118

2.793.655.259.03

0.480.911.311.702.082.442.793.143.493.814.154.464.795.095.405.706.006.296.576.867.137.407.677.938.188.438.678.919.169.389.619.82

10.0310.2410.4410.6310.8210.9911.1711.3411.5111.6611.8011.9512.0912.2112.3312.4412.5512.6412.7412.8212.8912.9613.0213.0613.1013.1513.1713.1813.1913.1913.1813.1613.1313.0813.0412.9812.9012.83

125

3.084.025.799.96

0.541.001.441.872.282.683.083.453.834.204.574.925.275.625.956.296.626.947.267.577.888.178.468.759.039.309.589.84

10.1010.3510.5910.8311.0611.2911.5111.7211.9212.1212.3012.4812.6512.8212.9813.1313.2713.4013.5213.5513.7613.8513.9414.0214.0914.1514.2114.2514.2814.3014.3114.3114.3114.2914.2614.2214.1614.1014.0313.9413.8513.73

78

TABLE 24 Section XPAPower Rating P (kw) for arc of contact 180

NRPM


speed ratio

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57

0.020.030.040.08

0.000.010.010.010.010.020.020.020.030.030.030.040.040.040.040.050.050.050.060.060.060.060.070.070.070.080.080.080.080.090.090.090.100.100.100.110.110.110.110.120.120.120.130.130.130.130.140.140.140.150.150.150.160.160.160.160.170.170.170.180.180.180.180.190.19

0.130.180.270.54

0.020.040.060.080.090.110.130.150.170.190.210.230.250.270.280.300.320.340.360.380.400.420.440.450.470.490.510.530.550.570.590.610.630.640.660.680.700.720.740.760.780.800.810.830.850.870.890.910.930.950.970.981.001.021.041.061.081.101.121.141.161.171.191.211.23

0.190.260.390.77

0.030.050.080.110.130.160.190.220.240.270.300.320.350.380.400.430.460.480.510.540.560.590.620.650.670.700.730.750.780.810.830.860.890.910.940.970.991.021.051.081.101.131.161.181.211.241.261.291.321.341.371.401.421.451.481.511.531.561.591.611.641.671.691.721.75

0.230.310.480.94

0.030.070.100.130.160.200.230.260.300.330.360.400.430.460.490.530.560.590.630.660.690.730.760.790.820.860.890.920.960.991.021.051.091.121.151.191.221.251.291.321.351.381.421.451.481.521.551.581.621.651.681.711.751.781.811.851.881.911.941.982.012.042.082.112.14

150 170 190 200 224 250

4.095.367.78

13.68

0.681.281.882.412.963.554.094.575.085.626.126.597.087.508.048.468.949.389.82

10.2610.6811.1411.5211.9312.3412.7213.0813.4913.8414.1814.5314.8815.2215.5615.8616.1616.4416.7216.9917.2517.5117.7617.9418.1118.2618.4118.5118.5818.6118.6918.7218.7318.7318.6918.6418.61

4.846.359.24

16.09

0.801.542.222.893.454.194.845.486.136.647.247.838.398.969.49

10.1310.5511.1811.6912.1912.6613.1813.6814.0814.6415.0915.4515.8916.3116.7317.1117.4817.8618.2318.5718.9119.2319.5419.6519.8520.0520.2520.3120.3820.4620.5120.5420.5820.5520.49

5.597.38

10.6818.43

0.941.762.563.344.144.825.596.296.867.698.389.099.74

10.3610.9911.6412.2412.8513.4113.9814.4515.1915.6816.2516.7517.2517.7518.1918.6619.1319.5519.9620.3520.7321.0121.2121.3621.5921.7521.8222.0422.1322.1922.2121.8421.71

6.007.86

11.3418.88

1.011.922.783.614.435.226.006.757.508.238.959.65

10.3311.0011.6712.3112.9313.5514.1314.7115.2815.8116.3416.8417.3417.8018.2518.6819.0819.4719.8220.1720.4920.7721.0421.2821.4921.6821.8521.9922.0922.1722.2222.2322.22

6.919.06

13.0221.25

1.172.213.204.175.106.026.917.788.649.47

10.2911.1011.8812.6413.3914.1114.8215.5016.1616.8017.4218.0218.5919.1319.6520.1420.6021.0421.4521.8322.1822.4922.7723.0223.2423.4223.5623.6723.7423.78

7.8910.3314.7823.50

1.322.523.654.765.826.877.898.889.85

10.8011.7312.6313.5114.3715.2016.0016.7917.5418.2618.9519.6120.2420.8421.4121.9322.4322.8923.3123.6924.0224.3224.5724.7824.9525.06

132

3.344.436.45

11.33

0.571.081.562.032.462.963.343.824.244.635.015.465.886.266.637.097.427.798.148.478.839.235.589.86

10.2310.5510.8611.1911.5111.8312.1112.3912.6812.9613.2313.4913.7914.0914.2914.4814.7014.9115.1415.3615.5515.7415.8115.8515.9516.0219.1116.1916.2316.3216.3916.3516.2916.2616.1916.1216.0916.0516.0115.8815.42

140

3.664.736.93

11.92

0.631.191.712.232.723.203.664.134.585.035.465.896.316.737.137.547.938.328.699.069.439.79

10.1310.4810.8211.1411.4611.7712.0612.3612.6412.9313.1913.4513.6913.9314.1614.3914.6014.7914.9815.1615.3315.4915.6315.7715.8916.0016.1016.1916.2616.3316.3716.4116.4316.4416.4416.4216.3916.3416.2916.2116.1216.0115.90

160

4.455.848.43

14.40

0.761.432.072.693.303.874.455.025.576.116.657.167.688.188.679.179.64

10.1010.5611.0111.4511.8812.3012.6913.0913.4813.8514.2214.5614.9115.2415.5515.8416.1416.4116.6716.9317.1617.3817.5817.7717.9418.1018.2418.3818.4818.5718.6518.7118.7418.7718.7718.7618.7218.67

180

5.236.869.90

16.72

0.881.682.433.163.864.565.235.896.547.187.808.429.029.61

10.1910.7511.3111.8412.3812.8913.4013.8914.3614.8315.2715.7116.1216.5316.9117.2817.6317.9718.2918.5918.8719.1319.3719.6019.8019.9920.1520.3020.4120.5120.5820.6320.6620.6620.6420.60

280

8.9911.7716.7625.66

1.512.874.175.436.657.838.99

10.1211.2212.3013.3514.3615.3416.3017.2118.1018.9519.7620.5321.2621.9622.6123.2123.7624.2824.7425.1525.5025.8026.05

700950

14502850

100200300400500600700800900

10001100120013001400150016001700180019002000210022002300240025002600270028002900300031003200330034003500360037003800390040004100420043004400450046004700480049005000510052005300540055005600570058005900600061006200630064006500

79

TABLE 25 Section XPB, 5VXPower Rating P (kw) for arc of contact 180


speed ratio

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57118 132 150 160 170 180

3.154.166.06

10.63

0.510.991.451.892.312.743.153.563.964.364.755.125.505.886.256.606.967.327.658.008.338.668.989.299.609.90

10.2010.4910.7611.0511.3111.5711.8212.0612.3012.5312.7512.9613.1613.3513.5313.7113.8714.0314.1814.3114.4414.5514.6614.7514.8414.9114.9615.0215.0615.0815.1015.1015.0915.06

4.075.397.89

13.90

0.661.271.852.432.983.534.074.605.125.646.156.667.157.648.138.609.079.539.99

10.4410.8811.3111.7312.1412.5512.9513.3413.7114.0814.4514.7915.1315.4715.7816.0916.3816.6716.9517.2117.4517.6917.9118.1318.3218.5118.6818.8418.9819.1119.2319.3219.4019.4819.5319.5619.5819.5819.5719.5419.49

5.246.95

10.2117.98

0.841.622.373.113.834.555.245.936.627.297.968.619.269.89

10.5211.1411.7512.3512.9413.5214.0914.6515.1915.7316.2416.7617.2517.7318.2118.6719.1119.5419.9520.3520.7421.1121.4521.7922.1022.4122.6822.9423.1923.4223.6323.8123.9724.1224.2424.3524.4324.4924.5324.5424.53

5.897.82

11.4920.17

0.931.822.663.494.315.105.896.687.448.208.959.69

10.4211.1311.8412.5413.2213.8914.5515.2015.8416.4617.0717.6718.2618.8319.3719.9120.4320.9421.4221.8922.3422.7923.1923.5923.9724.3324.6624.9825.2725.5425.7926.0226.2226.4026.5526.6826.7926.8626.9126.9326.9326.9026.85

6.728.79

12.7421.79

1.142.163.144.094.985.886.727.558.399.249.98

10.8211.5612.3213.0913.8214.5415.1915.9416.6217.2617.9418.5619.1919.7720.3620.9321.4822.0922.5422.1423.5623.9824.4524.8625.2625.6626.0826.3826.6926.9927.2827.5427.7927.8227.8927.9828.0128.0928.1228.1628.24

7.199.54

14.0224.41

1.132.213.234.245.246.237.198.149.08

10.0110.9211.8212.7213.5914.4515.3016.1316.9417.7318.5219.2920.0320.7621.4722.1722.8323.4824.1124.7225.2925.8526.3926.9027.3827.8428.2728.6829.0429.3929.7230.0030.2530.4830.6730.8330.9531.0431.0931.1131.10

100

1.792.273.114.75

0.450.700.921.141.361.581.791.992.182.362.552.732.883.043.193.343.483.613.753.884.004.124.234.354.434.514.594.674.744.824.904.985.035.085.135.185.225.255.295.325.315.295.285.265.255.235.225.205.195.175.074.974.874.774.684.584.484.384.284.18

112

2.753.625.279.20

0.460.871.271.662.032.392.753.113.453.804.144.464.805.115.435.746.056.366.656.947.227.517.788.058.328.588.839.089.329.569.79

10.0110.2210.4310.6310.8311.0111.1911.3611.5311.6911.8311.9712.1112.2312.3512.4512.5512.6312.7212.7912.8412.8912.9412.9712.9913.0013.0012.9912.97

125

3.614.776.97

12.27

0.591.131.652.152.653.133.614.084.555.005.455.896.336.767.197.618.028.438.839.229.619.99

10.3610.7211.0811.4311.7712.1112.4312.7613.0613.3713.6613.9314.2114.4814.7314.9715.2015.4215.6515.8416.0316.2116.3816.5416.6816.8116.9417.0417.1417.2117.2817.3417.3817.4017.4117.4117.3917.36

140

4.596.098.93

15.73

0.741.432.082.733.363.984.595.205.796.376.967.538.108.659.209.73

10.2710.7911.3111.8112.3212.8013.2813.7414.2114.6615.0915.5215.9416.3416.7417.1217.4817.8418.1918.5218.8419.1419.4319.7019.9620.2120.4320.6520.8521.0321.2021.3521.4821.5921.6921.7721.8321.8721.8921.8921.8721.8421.7821.69

190

7.9510.4315.0625.64

1.322.543.684.795.866.947.958.949.93

10.9111.8612.7913.7414.6415.5616.3717.2318.0418.8919.6920.4521.2621.9422.6623.3624.0524.7225.3425.9426.5327.0827.6428.1428.6429.1829.5229.9230.3130.6430.98

0.040.060.090.18

0.010.010.020.030.030.040.040.050.060.060.070.080.080.090.090.100.110.110.120.130.130.140.150.150.160.160.170.180.180.190.200.200.210.220.220.230.230.240.250.250.260.270.270.280.280.290.300.300.310.320.320.330.340.340.350.350.360.370.370.38

0.290.390.591.17

0.040.080.120.160.200.250.290.330.370.410.450.490.530.570.610.650.700.740.780.820.860.900.940.981.021.061.101.151.191.231.271.311.351.391.431.471.511.551.601.641.681.721.761.801.841.881.921.962.002.052.092.132.172.212.252.292.332.372.412.45

0.410.550.841.65

0.060.120.170.230.290.350.410.460.520.580.640.700.750.810.870.930.991.051.101.161.221.281.341.391.451.511.571.631.681.741.801.861.921.972.032.092.152.212.262.322.382.442.502.562.612.672.732.792.852.902.963.023.083.143.193.253.313.373.433.48

0.500.681.032.03

0.070.140.210.280.360.430.500.570.640.710.780.850.931.001.071.141.211.281.351.421.501.571.641.711.781.851.921.992.062.142.212.282.352.422.492.562.632.712.782.852.922.993.063.133.203.283.353.423.493.563.633.703.773.843.923.994.064.134.204.27

NRPM

700950

14502850

100200300400500600700800900

100011001200130014001500160017001800190020002100220023002400250026002700280029003000310032003300340035003600370038003900400041004200430044004500460047004800490050005100520053005400550056005700580059006000

80

Power Rating P (kw) for arc of contact 180

TABLE 25 Section XPB, 5VX

NRPM


speed ratio

224 250 315 355 400

10.0113.2919.4632.91

1.583.064.495.907.298.66

10.0111.3312.6413.9315.1916.4417.6618.8620.0321.1922.3023.4024.4725.5026.5027.4828.4129.3230.1931.0231.8032.5533.2633.9334.5535.1235.6536.1336.5636.9537.2837.5537.7737.94

11.6615.4722.5637.33

1.833.555.236.888.49

10.0911.6613.2014.7216.2117.6719.1120.5221.8923.2424.5525.8227.0528.2529.4030.5131.5832.6133.5834.5035.3936.2036.9737.6738.3338.9139.4439.9040.3040.62

15.7220.7930.0146.04

2.474.797.069.28

11.4713.6115.7217.7819.8021.7823.7025.5827.3929.1630.8632.5034.0635.5536.9838.3339.5940.7541.8442.8343.7244.5245.2145.7946.2646.61

18.1824.1134.62

2.865.558.18

10.7513.2815.7518.1820.5422.8525.1027.2829.3931.4333.3835.2537.0238.7040.2941.7643.1244.3745.5046.5047.3748.10

20.9027.6438.78

3.296.399.43

12.3915.3018.1320.9023.5926.2128.7431.1733.5235.7537.8739.8741.7543.4947.1946.5447.8348.9549.9150.6751.2651.66

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57200

8.4711.2616.5228.42

1.332.593.815.006.177.338.479.60

10.7111.8012.8713.9314.9816.0017.0118.0018.9719.9220.8421.7522.6323.4924.3225.1325.9126.6727.3928.0928.7629.3930.0030.5731.1031.6132.0832.5132.9033.2533.5733.85

212

9.2812.1917.6329.66

1.562.964.265.596.858.099.28

10.4611.6312.7613.8914.9916.0417.1318.1819.1620.1321.0922.0322.9623.8424.7425.5426.3627.1827.9428.6529.3229.9830.6531.2331.8232.3532.8533.3633.7433.9634.0534.2434.46

236

10.7114.1920.3533.75

1.813.414.966.447.939.38

10.7112.1113.4514.7916.1317.3918.5819.7620.9822.1523.2924.2925.3826.4227.4528.3829.3430.1931.0931.8932.6533.3934.0934.7935.3935.9336.1136.3236.8937.0837.4237.8938.2138.44

280

13.5517.9426.0741.79

2.124.136.087.999.87

11.7213.5515.3317.0818.8120.4922.1323.7425.3126.8328.3029.7331.0932.4133.6734.8836.0337.1138.1239.0639.9340.7341.4542.0942.66

0.040.060.090.18

0.010.010.020.030.030.040.040.050.060.060.070.080.080.090.090.100.110.110.120.130.130.140.150.150.160.160.170.180.180.190.200.200.210.220.220.230.230.240.250.25

0.290.390.591.17

0.040.080.120.160.200.250.290.330.370.410.450.490.530.570.610.650.700.740.780.820.860.900.940.981.021.061.101.151.191.231.271.311.351.391.431.471.511.551.601.64

0.410.550.841.65

0.060.120.170.230.290.350.410.460.520.580.640.700.750.810.870.930.991.051.101.161.221.281.341.391.451.511.571.631.681.741.801.861.921.972.032.092.152.212.262.32

0.500.681.032.03

0.070.140.210.280.360.430.500.570.640.710.780.850.931.001.071.141.211.281.351.421.501.571.641.711.781.851.921.992.062.142.212.282.352.422.492.562.632.712.782.85

700950

14502850

100200300400500600700800900

1000110012001300140015001600170018001900200021002200230024002500260027002800290030003100320033003400350036003700380039004000

81

TABLE 26 Section XPCPower Rating P (kw) for arc of contact 180

82


speed ratio

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57190 212 236 250 265 280

10.5513.6919.3332.75

0.771.542.543.544.174.795.646.497.217.928.589.239.89

10.5511.2011.8512.4913.1313.6914.2414.8515.4516.0416.6317.1717.7118.2718.8219.3319.8420.4020.9621.4421.9222.3822.8323.3223.8124.2524.6925.1625.6326.0626.4826.9827.4627.9828.3628.7329.6829.9530.6531.0531.1231.4632.2532.7533.0533.2633.5233.9634.0834.2134.4634.9535.0935.8836.1236.6637.15

13.1116.9424.0235.03

0.981.952.913.864.585.296.527.758.729.69

10.5211.3412.2313.1113.8814.6415.4316.2216.9417.6518.3919.1219.8920.6521.3722.0922.7223.3524.0224.6925.4126.1326.6927.2527.8628.4629.0629.6630.2130.7531.2731.7932.3832.9633.4333.8934.3834.8635.3035.7436.2036.6635.5434.4132.7931.1635.0338.8939.2239.5439.8540.1640.7740.8341.0442.3242.9443.0543.4843.68

15.6520.4629.0445.96

1.112.222.382.544.646.737.808.869.92

10.9812.2613.5414.6015.6516.6417.6218.5919.5520.4621.3621.2621.1523.0524.9425.7726.5927.4128.2329.0429.8430.6531.4632.2132.9533.7234.4935.1835.8636.5337.1935.8334.4637.0839.6940.2640.8241.3641.8942.4943.0943.5844.0644.4744.8845.3245.7645.9646.0746.4646.9247.0247.2347.4448.0348.4448.6148.7248.84

15.9121.2031.0250.10

1.222.413.584.745.897.038.179.30

10.4211.5312.6413.7314.8315.9116.9918.0519.1120.1621.2022.2323.2524.2625.2626.2527.2328.1929.1530.0931.0231.9332.8333.7234.5935.4536.2937.1137.9238.7239.4940.2540.9941.7142.4243.1043.7744.4245.0445.6546.2346.7947.3347.8548.3548.8249.2749.7050.1050.4750.8251.1551.4551.7251.9752.1852.37

17.5823.9335.0353.74

1.322.643.814.986.317.638.91

10.1811.3712.5613.8015.0416.3117.5818.8220.0521.0822.1123.9325.7526.8227.8929.0130.1231.1432.1533.1234.0935.0335.9636.8937.8238.7039.5840.4341.2742.0842.8843.7444.5945.3946.1846.8147.4447.9448.4449.2750.0950.6751.2551.6551.8352.0452.2952.8453.1953.7454.1154.3254.5554.6954.8155.0255.1255.61

18.6724.8436.1256.06

1.432.834.205.576.928.269.59

10.9212.2313.5414.8416.1317.4018.6719.9321.1722.4123.6324.8426.0327.2228.3929.5430.6831.8032.9134.0035.0736.1237.1638.1839.1740.1541.1142.0442.9643.8544.7145.5646.3847.1747.9448.6949.4050.0950.7651.3952.0052.5753.1253.6454.1254.5754.9955.3855.7456.0656.3456.5956.80

160

6.097.78

10.8116.15

0.691.321.732.142.552.973.383.794.184.584.975.365.736.096.466.827.147.467.788.118.438.759.079.399.679.96

10.2410.5310.8111.0911.3811.6611.9012.1412.3712.6112.8513.0913.3213.5613.7713.9814.1914.4014.6114.8215.0315.2415.3415.4415.5415.6515.7515.8515.9516.0516.1516.2516.3516.4616.5616.6616.7616.8616.8716.8816.8916.8916.9016.91

180

9.3812.5318.5031.91

0.731.432.122.803.484.154.825.486.146.807.458.108.749.38

10.0210.6511.2811.9112.5313.1413.7614.3714.9715.5716.1716.7617.3417.9218.5019.0719.6320.1920.7421.2921.8322.3622.8923.4123.9324.4424.9425.4425.9226.4026.8827.3427.8028.2528.6929.1229.5529.9630.3730.7731.1631.5431.9132.2732.6332.9733.3033.6233.9434.2434.5334.8135.0835.3435.5935.83

200

11.2615.0322.1537.65

0.871.712.543.364.174.985.786.577.378.158.949.71

10.4911.2612.0212.7813.5414.2915.0315.7716.5017.2317.9518.6719.3820.0820.7821.4722.1522.8323.5024.1624.8125.4626.0926.7227.3427.9528.5629.1529.7430.3130.8831.4331.9832.5133.0433.5534.0534.5435.0235.4935.9536.3936.8337.2537.6538.0538.4338.8039.1539.4939.8240.1340.4340.7240.9941.2441.4841.70

224

13.5018.0126.4643.99

1.042.053.044.025.005.966.937.888.839.78

10.7211.6512.5813.5014.4115.3216.2217.1218.0118.8919.7620.6321.4922.3423.1824.0124.8425.6526.4627.2528.0428.8129.5830.3331.0731.8032.5233.2333.9334.6135.2835.9336.5837.2037.8238.4239.0039.5840.1340.6741.1941.7042.1942.6743.1343.5743.9944.3944.7845.1545.5045.8346.1446.4346.7046.9547.1847.3947.5847.74

315

21.8629.0141.86

1.683.324.936.538.129.69

11.2512.8114.3515.8717.3918.8920.3921.8623.3224.7726.2027.6229.0130.3931.7533.0934.4135.7136.9938.2439.3740.6841.8643.0144.1445.2446.3147.3548.3749.3550.3051.2152.1052.9553.7654.5455.2955.9956.6657.2857.8758.4258.9259.3959.8060.1860.5160.7961.03

NRPM

700950

14502850

50100150200250300350400450500550600650700750800850900950

100010501100115012001250130013501400145015001550160016501700175018001850190019502000205021002150220022502300235024002450250025502600265027002750280028502900295030003050310031503200325033003350340034503500

0.080.100.160.31

0.010.010.020.020.030.030.040.040.050.050.060.070.070.080.080.090.090.100.100.110.110.120.120.130.140.140.150.150.160.160.170.170.180.180.190.200.200.210.210.220.220.230.230.240.240.250.260.260.270.270.280.280.290.290.300.300.310.310.320.330.330.340.340.350.350.360.360.370.370.38

0.490.671.022.00

0.040.070.110.140.180.210.250.280.320.350.390.420.460.490.530.560.600.630.670.700.740.770.810.840.880.910.950.981.021.051.091.121.161.191.231.301.331.371.401.441.471.511.541.581.611.651.681.721.751.791.821.861.891.931.962.002.042.062.072.112.142.182.212.252.282.322.352.392.422.46

0.700.951.442.84

0.050.100.150.200.250.300.350.400.450.500.550.600.650.700.750.800.850.900.951.001.051.101.151.201.251.291.341.391.441.491.541.591.641.691.741.791.841.891.941.992.042.092.142.192.242.292.342.392.442.492.542.592.642.692.742.792.842.892.942.993.043.093.143.193.243.293.343.393.443.49

0.851.161.773.48

0.060.120.180.240.310.370.430.490.550.610.670.730.790.850.920.981.041.101.161.221.281.341.401.471.531.591.651.711.771.831.891.952.022.082.142.202.262.322.382.442.502.562.632.692.752.812.872.932.993.053.113.183.243.303.363.423.483.543.603.663.723.793.853.913.974.034.094.154.214.27

TABLE 26 Section XPCPower Rating P (kw) for arc of contact 180

NRPM


speed ratio

400 500 630 710

29.4638.8054.60

2.284.506.698.86

11.0113.1415.2517.3519.4221.4823.5125.5227.5029.4631.3933.2935.1637.0038.8040.5742.3043.9945.6447.2548.8150.3351.8053.2354.6055.9257.1958.4059.5560.6561.6862.6563.5664.4065.1865.8866.5267.0867.5767.9868.31

38.0849.5667.02

2.985.888.74

11.2214.3817.1619.9122.6225.3027.9430.5433.1035.6138.0840.4942.8545.1547.3949.5651.6753.7055.6657.5459.3561.0662.6964.2365.6867.0268.2769.4170.4571.3772.1872.88

48.6762.0678.01

3.897.67

11.4015.0918.7322.3225.8629.3432.7536.1039.3742.5645.6648.6751.5754.3757.0659.6262.0664.3666.5368.5570.4172.1273.6575.0276.2077.2078.0178.61

54.7768.76

4.448.77

13.0317.2321.3825.4529.4633.3937.2240.9644.6048.1251.5154.7757.8960.8663.6766.3068.7671.0273.0974.9576.5878.0079.17

1.01to

1.05

1.06to

1.26

1.27to

1.57

For>

1.57335

23.6731.3645.01

1.823.605.357.088.80

10.5012.2013.8815.5517.2018.8420.4722.0823.6725.2526.8028.3429.8631.3632.8434.2935.7337.1338.5139.8741.2042.5043.7745.0146.2247.4048.5549.6650.7351.7752.7853.7454.6755.5556.4057.2057.9658.6859.3559.9760.5561.0861.5661.9962.37

355

25.4633.6848.08

1.963.875.767.639.48

11.3213.1414.9516.7418.5220.2822.0323.7625.4627.1528.8230.4632.0933.6835.2636.8038.3239.8141.2742.6944.0945.4546.7848.0849.3350.5551.7352.8753.9655.0256.0356.9957.9158.7859.6160.3861.1061.7762.3962.95

450

33.8244.2961.20

2.635.197.72

10.2212.7015.1517.5919.9922.3724.7327.0529.3431.6033.8236.0038.1440.2342.2944.2946.2548.1549.9951.7953.5255.1956.7958.3359.8061.2062.5263.7764.9466.0267.0367.9568.7869.5270.1670.7171.16

560

43.0655.5672.89

3.406.719.97

13.2016.3919.5522.6725.7428.7731.7434.6637.5340.3343.0645.7248.3150.8153.2355.5657.7959.9361.9663.8965.7067.3968.9670.4071.7272.8973.93

0.080.100.160.31

0.010.010.020.020.030.030.040.040.050.050.060.070.070.080.080.090.090.100.100.110.110.120.120.130.140.140.150.150.160.160.170.170.180.180.190.200.200.210.210.220.220.230.230.240.240.250.260.260.270.27

0.490.671.022.00

0.040.070.110.140.180.210.250.280.320.350.390.420.460.490.530.560.600.630.670.700.740.770.810.840.880.910.950.981.021.051.091.121.161.191.231.301.331.371.401.441.471.511.541.581.611.651.681.721.751.79

0.700.951.442.84

0.050.100.150.200.250.300.350.400.450.500.550.600.650.700.750.800.850.900.951.001.051.101.151.201.251.291.341.391.441.491.541.591.641.691.741.791.841.891.941.992.042.092.142.192.242.292.342.392.442.49

0.851.161.773.48

0.060.120.180.240.310.370.430.490.550.610.670.730.790.850.920.981.041.101.161.221.281.341.401.471.531.591.651.711.771.831.891.952.022.082.142.202.262.322.382.442.502.562.632.692.752.812.872.932.993.05

700950

14502850

50100150200250300350400450500550600650700750800850900950

1000105011001150120012501300135014001450150015501600165017001750180018501900195020002050210021502200225023002350240024502500

83

ARC

OF C

ONT

ACT

ON

SMAL

LER

PULL

EY(D

EGRE

ES)

TABL

E 27

PO

WER

CO

RREC

TIO

N F

ACT

ORS

ARC

OF

CON

TACT

0.0

01

80

1.0

0

0.0

51

77

0.9

9

0.1

01

74

0.9

9

0.1

51

71

0.9

8

0.2

01

69

0.9

7

0.2

51

66

0.9

7

0.3

01

63

0.9

6

0.3

51

60

0.9

5

0.4

01

57

0.9

4

0.4

51

54

0.9

3

0.5

01

51

0.9

3

0.5

51

48

0.9

2

0.6

01

45

0.9

1

0.6

51

42

0.9

0

0.7

01

39

0.8

9

0.7

51

36

0.8

8

0.8

01

33

0.8

7

0.8

51

30

0.8

6

0.9

01

27

0.8

5

0.9

51

23

0.8

3

1.0

01

20

0.8

2

CORR

ECTIO

N FA

CTO

Ri.e

. PRO

PORT

ION

OF

018

0 R

ATIN

G

D - d C

0.8

0 6

30

0.8

1

93

00

.82

70

01

55

02

74

0

80

00

.83

1

00

0 6

30

0.8

4

79

0

17

60

9

00

0.8

5

11

00

7

10

12

50

0.8

64

05

89

0

31

30

1

00

0

20

00

0.8

7

12

10

19

50

33

30

8

00

14

00

2

54

00

.88

99

0

11

20

22

40

0.8

9

90

0 1

60

0

30

00

0.9

04

75

11

00

13

70

21

90

37

30

1

25

0

25

00

0.9

1

23

40

18

00

28

00

33

50

0.9

25

30

1

56

02

49

04

08

0

10

00

14

00

0.9

3

12

50

2

09

03

15

00

.94

27

20

46

20

53

34

11

20

16

00

4

06

00

.95

62

51

76

02

80

0

2

24

03

55

00

.96

14

30

3

08

0

60

45

12

50

18

00

25

00

0.9

7

19

50

5

40

0

4

00

05

08

00

.98

70

01

55

03

31

0

14

00

20

00

28

00

45

00

0.9

9

16

40

21

80

35

20

6

80

7

6

00

01

.00

78

01

75

02

30

0

61

00

16

00

22

40

31

50

50

00

1.0

21

94

02

50

04

06

07

56

91

80

02

50

03

55

05

60

07

10

01

.03

68

40

83

31

80

00

1.0

49

20

20

50

27

00

2

00

02

80

04

09

06

30

01

.05

22

00

28

50

46

00

76

20

90

93

7

10

09

00

01

.06

23

00

31

50

45

00

1.0

71

08

0

84

10

98

55

22

40

8

00

01

01

60

1.0

8 2

48

03

20

05

38

0

35

50

50

00

1.0

9 2

57

0

91

40

10

61

72

50

05

60

09

00

01

14

30

1.1

0 2

70

03

60

0

4

00

0

12

70

01

.11

6

10

0

28

00

63

00

10

00

01

.12

2

91

0

10

70

01

21

41

4

50

01

12

00

1.1

3

30

80

40

60

3

15

07

10

01

.14

32

90

68

60

13

66

5

1

25

00

1.1

5

44

30

35

50

78

80

1.1

63

54

04

82

07

60

01

22

00

15

18

91

.18

5

00

01

37

00

1.1

9

53

70

1

67

13

1.2

0

60

70

15

20

01

.21

91

00

1.2

4

10

70

0

Z, ZX

A, A

XB, BX

20,C

,25,

CXD

ESP

Z, 3

V,XP

Z, 3

VXSP

A, X

PASP

B, 5

VXP

B, 5

VXSP

C, X

PC8V

POW

ERCO

RREC

-TI

ON

FACT

ORS

V-BEL

TSW

EDG

E BEL

TS

BEL

T PIT

CH

LEN

GTH

TABLE

28

PO

WER

CO

RREC

TIO

N F

ACTO

RS F

OR B

ELT

PIT

CH

LEN

GTH

(Fd

)

84

Idlers / Tension Pulleys

Idlers are basically no loaded wheels that are used in a drive system

under the following conditions.

1) Fixed centre distance, so as to provide the required installation

& take-up allowances.

2) On long & unsupported spans, as dampers & guides where the

chances of vibrations are more.

3) As outside idlers when the arc of contact on one of the drive

pulleys is too low. Also helps in reducing the slippage & the

need to increase the number of required belts.

4) As guide idlers where the drive system pulleys are not in the

same plane.

5) To guide the belts past obstructions.

6) As pneumatically, or spring loaded idlers to maintain the

constant tension in the drive.

7) As clutches where the driven pulley can be engaged or

disengaged.

The usage of idlers should be as far as possible avoided as they

generate additional bending stresses in the belt, leading to drastic

reduction in the belt life. However, under the conditions listed

above where it may be absolutely essential to use the idlers the

following criteria must be observed when designing drive.

1. Idler configuration

2. Position of idler in the belt span

3. Shape of idler

4. Allowance for idler travel

5. Correction of power rating

Idler Configuration

Principally idlers can be used internally or externally depending on

the drive conditions. However, unless the drive requirement calls for

an outside idler, possibly inside idler should be used. The inside

idler can be either flat or grooved pulley depending on the type of

belt used in the drive system. It is suggested that the flat inside idler

be used only when classical section is used while in all other cases a

grooved pulley be used. However the usage of inside idler reduces

the arc of contact on the loaded wheels and with it consequently

the arc of contact correction factor. Hence when designing the

drive with inside idler the arc of contact correction factor should

be selected for the position of the idler at the point of maximum

belt stretch.

Refer to table on Page 86

Outside idlers should always be flat one because they run on the

back of the belt Outside idlers invariably increase the arc of contact.

Care should however be taken to see that the maximum belt stretch

is achieved and the contact with the opposite side of the span is

avoided. The reverse bending caused because of the usage of the

outside idler reduces the life of the belt.

We suggest the usage of special construction Pix belts on these

drives. Please contact our Technical Services Deptt.

Idler Positioning

Practice has shown that the placement of idler, whether it is an inside

idler or an outside idler, should be on the slack side of the drive.

This helps in significant reduction in the tension idler force.

In the case of inside idlers, grooved pulley can be placed

anywhere in the entire span length on the slack side of the drive.

However to obtain the best from your drive it is suggested that

wherever possible the arc of contact on both the drive pulleys

should be brought as close as possible to each other when the idler

reaches its limit position.

Flat pulleys, used as inside or outside idlers are to be placed as far

as possible away from the the grooved pulley on which the belt

runs next. This will avoid any alignment errors between the idler &

the pulley & the resultant sideways movement of the belts on the

pulley. Refer figures below.

On drives where inside idler are used to break long spans, it is

suggested that a grooved pulley be used because the usage of flat idler

can result in transverse vibrations leading to the belt turnover.

Minimum diameter recommended for idlers.

Inside Idler > smallest loaded pulley in the drive system or smallest

permissible pulley diameter for section used.

Outside Idler > 1.5 times the smallest pulley in the drive system.

Inside Idler

Outside Idler

lack si e

Tight si e

SS d

d

Driver pulley Idler pulley(flat) Driven pulley

85

Slack side

Tight side

Driver pulley Idler pulley(flat or grooved)

Driven pulley

Grooved idlers should have the standard groove dimensions for

optimum results. In case of long spans & the drives with severe

vibrations, however, deep grooved pulleys are recommended. Flat

pulleys on the other hand should always be cylindrical & not crowned.

Wherever idlers are used as belt guides, it is suggested that a flanged

pulley be used with sharp corners to avoid the running over of the belt

over the flange causing turnover.

The distance between two flanges is governed by the the following

formula :

b = b2 + m

where b = required face width (mm)

b2 = face width of grooved pulley (mm)

m = additional value (mm)

Section m (mm)

SPZ / XPZ / 3V / 3VX / Z / ZX 15

SPA / XPA / A / AX 20

SPB / XPB / 5V / 5VX / B / BX 25

SPC / XPC / C / CX 30

8V / 8VX 35

D 40

E 45

Drive Calculations

The calculations for the length required is same as for the drive with

two pulleys. However the following details are required to be noted

when designing the same.

1) The required belt length is calculated using the standard

procedure. (Lp)

2) If the belt has to be used with fixed centre distance, then

double the installation allowance be added to the pitch length

calculated above, i.e., Lp = Lp + 2Y 1

where, Lp is the length considering installation allowances.1

Lp is the pitch length calculated in step 1.

Y is the installation allowance (see table no.29)

3) The next largest standard length Lp (standard) is to be chosen

near to Lp , however care be taken to check that the belt can 1

be adequately tensioned with the idler in the outermost

position. Length of the belt for idler in the end position can be

calculated as follows:

Ld ( f ) = Lp (standard) + 2X

where, Ld (f) is the length for idler end position that

is after max. belt stretch (final). Lp (standard) is the

standard length selected as above.

X is the take-up allowance (see table no.29)

Number of belts requiredThe usage of idlers invariably decreases the service life of belts. To avoid

a reduction in the belt service life, idler correction factor is also to be

considered while calculating the number of belts required.

No. of idlers

0

1

2

3

C4

1.00

0.91

0.86

0.81

Arc of contact correction factor c1

7580859095

100105110115125130

0.820.840.860.880.900.910.920.930.940.950.96

140145150155160165170175180185190

0.960.970.970.980.980.990.990.991.001.001.00

195200205210215220225230240250

1.011.011.011.011.011.011.011.011.021.02

Angle (degree) Angle (degree)C1 C1Angle (degree) C1

No. of required belts :

N = Pxc2

pxc1xc3xc4 N = No. of required belts:P = Power in KWp = Power rating of the beltc1 = From above tablec2 = Service factorc3 = Belt length factorc4 = Idler correction factor as above

IDLER DESIGN

86

Fixed drive C.D.

After max. Belt stretch

With standardbelt length

V-Flat DrivesThe V - flat drive comprises of one grooved pulley & one flat

pulley. V - flat drives are generally used where, under certain

conditions intermittent loading & large moment of inertia have to

be considered. The conversion from a flat drive to a V - flat drive is

a relatively low cost exercise because of the presence of the

existing flat pulley.

Prerequisites for a V - flat drive :

1) The smaller pulley should always be V - grooved pulley.

2) When using single belts, only classical belts are to be used

because of higher top width to height ratio (1.6:1).

3) Wedge belts should never be used on these drives because of

their lower top width to height ratio ( 1.2 : 1), which makes

these belts more vulnerable to turning on their sides.

4) Pix banded belts are more justifiable on these drives. The

reinforced band over the belts provides the required lateral

rigidity preventing the belt from turning over even under the

extreme adverse conditions.

5) V - flat drives are economical when K lies between 0.5 &

1.15,

Da = outside diameter of flat pulley (mm)

dd = pitch diameter of grooved pulley (mm)

da = outside diameter of grooved pulley (mm)

a = centre distance (mm)

The ideal drive is achieved when K = 0.85

The design procedure for V - flat drive is similar to that of

normal V belt drives, except that the arc of contact correction

factor has to be modified.

c1K= (D - d / d )a d a

aB

(degree)

0.000.070.150.220.290.350.400.450.500.570.640.700.750.800.850.921.001.071.151.211.301.361.45

1801761701671631601561531501461431401371341301251201151101061009690

0.750.760.770.790.790.800.810.810.820.830.840.850.850.860.860.840.820.800.780.770.730.720.70

Classical V-belts

Section Z A B C D E

Dz 7 10 13 18 23 25

Banded belts

Section SPZ/3V SPA SPB/5V SPC 8V

Dz 13 18 23 36 41

Calculation of Pitch Length2

(D + D - d )a z dpL = 2a + 1.57 (d + D + D ) +d a z 4a

Based on above, the following recommendations are made to

obtain the best from your V-flat drive.

r= Da

dd

³ 3

Banded BeltsV-Belts

Speed Ratio

Drive Centre Distance

r= Da

da

³ 3

a = D -da d

0.85a =

D - da a

0.85

“K” - Factor K= D -da d

aK= D - da a

a

0.5 £ K £ 1.15

Calculation of outside length for banded belt :

La = 2a + 1.57 (d + D +D ) +a a z

(D + D - d )a z a

2

4a

where K = (Da - dd /da)a

87

a

dd / da

Da

q 360- qq

DIMENSIONS OF STANDARD V-GROOVED PULLEY

The maximum distance 'L' between the outside edges of the pulley, i.e. the face width is equal to (x-1) e + 2f (where x is the number grooves)

NOTE :

1) See figure for symbol.

2) The tolerance on dimension apply to the distance between the centre of any two grooves whether adjacent or not.

3) It is recommended that the tolerance on dimension should be taken into account in the alignment of the pulleys.

4) When the pulleys are to be used for V-Belts Z, A, B, C only, dimension 'h' may be reduced by 20 %.

5) Only above dimension pulleys should be used for Banded belts except for 'A' section, where e = 15.9 mm. The tolerance for side wobble and for run out (eccentricity), in mm per millimetre of pulley diameter shall be as follows :

Pulley diameter < 500 mm ± 0.001 mm

500 mm < Pulley diameter < 1500 mm ± 0.0015 mm

Pulley diameter > 1500 mm ± 0.002 mm

Z, SPZ, 8.5 2.0 9.0 12 ± 0.3 8.0 ± 1.0 Upto 80 34 ± 0.5 9.7ZX, XPZ Over 80 38 ± 0.5 9.9

A, SPA, 11.0 2.75 11.0 15 ± 0.3 10.0 + 2.0 Upto 118 34 ± 0.5 12.7AX, XPA - 1.0 Over 118 38 ± 0.5 12.9

B, SPB, 14.0 3.5 14.0 19 ± 0.4 12.5 + 2.0 Upto 190 34 ± 0.5 16.1BX, XPB - 1.0 Over 190 38 ± 0.5 16.4

C, SPC, 19.0 4.8 19.0 25.5 ± 0.5 17.0 + 2.0 Upto 315 34 ± 0.5 21.9CX, XPC - 1.0 Over 315 38 ± 0.5 22.3

D 27.0 8.1 19.9 37 ± 0.6 24.0 + 3.0 Upto 475 36 ± 0.5 32.3 - 1.0 475 & over 38 ± 0.5 32.6

E 32.0 9.6 23.4 44.5 ± 0.7 29.0 + 4.0 Upto 610 36 ± 0.5 38.8 - 1.0 Over 610 38 ± 0.5 39.3

3V, 3VX 0.64 8.0 10.3 ± 0.4 8.7 + 2.0 Upto 88 36 ± 0.5 8.9 - 0.8 88 to 152 38 ± 0.5 152 to 305 40 ± 0.5 above 305 42 ± 0.5

5V, 5VX 1.27 13.7 17.5 ± 0.4 12.7 + 3.0 Upto 254 38 ± 0.5 15.2 - 1.0 254 to 406 40 ± 0.5 above 406 42 ± 0.5

8V, 8VX 2.54 22.6 28.6 ± 0.4 19.0 + 6.0 Upto 406 38 ± 0.5 25.4 - 1.5 406 to 569 40 ± 0.5

MULTI GROOVED PULLEY CROSS SECTIONGROOVE

PITCHWIDTH(Wp)

CROSS

SECTION

SYMBOL

MINIMUMDISTANCE FROM

OUTSIDE DIAMETERTO PITCH

DIAMETER (b) mm

MINIMUMGROOVE DEPTH

BELOW PITCHDIAMETER

(NOTE 4) (h) mm

CENTRE TO CENTRE OFGROOVE

(SEE NOTE 2)(e) mm

EDGE OF PULLEYTO 1ST GROOVE

CENTRE(SEE NOTE 3)

(f) mm

PITCHDIAMETER

(dp)

mm

MINIMUMTOP WIDTHOF GROOVE

(g)mm

L

f

Wp

g

b

hdpOutside

Diameter

e

GROOVEANGLE

( )

mm

88

SERVICE EQUIPMENTS

PIX PULLEY GAUGESPIX Pulley Gauges are specially designed for checking the profiles of

the grooves of various sections.

GROOVE CHECKING PROCEDURE

1. Identify the pulley gauge to be used according to section and

its diameter.

2 . Measure the groove by inserting the gauge. Identify if any

clearence lies between the side wall of groove & the gauge.

3. Measure the present clearance using the Feeler Gauge.

34

38

90

80

70

60

50

40

150

140

130

120

110

100

210

200

190

180

170

160

250

240

230

220

20

10

LENGTH MEASURE

PIX V-BELT TENSION TESTERGENERAL GUIDELINES FOR TENSION

MEASUREMENT OF V-BELTS :

Proper belt tension is vital to the operation of the drive and the life of V-Belts. To ensure optimum V-belt drive operation, it is recommended to check the tension in the belts by measuring the deflection force value (N) with the help of a tension measuring device.

The belt tension in most drives can be checked with adequate reliability by means of Pix V-Belts Tension Tester.

TENSION MEASUREMENT PROCEDURE

1. Measure the span length of the belt in mm. (Ref. sketch).

2. Tie a string / thread on the two pulleys along the length of belts and mark center of the span on the belt.

3. Calculate 1.5% of the span (say x) for belt length less than 1000 mm & 1.0% of the span for belt length more than 1000 mm. Adjust lower ring on the tension tester on millimeter scale to coincide, "x" mm with the lower side of the ring. Adjust lower side of the upper ring at 0.00 N.

4. Place tension tester at the centre of the span of the belt. Apply force with the help of tension tester perpendicular to the span till the lower surface of the lower ring touches the string.

5. Read the deflection force value (N) on the Newton scale by taking reading at the lower side of the upper ring.

6. Compare the deflection force value (N) with the values given in the table 'A'. The deflection force value (N) should lie between the min. and max. values given in the table 'A'.

7. Deflection force less than minimum recommended value in the range indicates an under-tensioned drive & deflection force higher than maximum recommended value indicates an over-tensioned drive.

IMPORTANT :

u For new belts the deflection force value (N) should be kept at maximum.

u Maximum deflection force value (N) is recommended for pulsating & shock loads.

u After approximately 24 hrs. of running, check the belt tension and adjust if necessary.

89

PIX LENGTH FINDER

For checking the length where size on the belts

are not clearly visible. It can also be used to

confirm the size of the belt.

Note : Only approx. inside length measurement

is possible up to (100 inches).

LENGTH MEASUREMENT PROCEDURE

1. Place the belt on the upper half of pulley

which is fixed.

2. Slide down the lower half of pulley with the

belt along the scale till the belt gets

sufficiently stretched.

3. Marker at lower position of the bottom half

will show the reading in mm / inches. Note

down the reading and compare this value

with the belt size mentioned on the belt.

CENTRE DISTANCE 'C '

90

CrossSection

DEFLECTION FORCE REQUIRED FOR MEASURING TENSION IN V-BELT DRIVES

Smaller PulleyDiameter

(mm)

Condition 1Deflection @ 1.0% of span, if span

length is more than 1000 mm

Condition 2Deflection @ 1.5% of span, if span

length is less than 1000 mm

Required deflection force F atthe centre of span for belt speed

Required deflection force F atthe centre of span for belt speed

0 m/s to10 m/s

Range (N)

10 m/s to20 m/s

Range (N)

20 m/s to30 m/s

Range (N)

0 m/s to10 m/s

Range (N)

10 m/s to20 m/s

Range (N)

20 m/s to30 m/s

Range (N)

Table A

CLASSICAL V-BELTSZ 50-100 4-6 4-5 3-4 5-8 5-7 4-5

100 & above 6-9 6-7 5-6 8-12 8-9 7-8

A 71-140 8-12 7-10 6-8 11-16 9-13 8-11140 & above 12-18 10-14 8-12 16-24 13-19 11-16

B 112-200 16-24 13-19 10-16 21-32 17-25 13-21200 & above 24-35 19-29 16-24 32-47 25-39 21-32

C 180-400 31-46 26-38 20-31 41-61 35-51 27-41400 & above 46-70 38-58 31-46 61-93 51-77 41-61

D 315-600 62-90 52-76 42-62 83-120 69-101 56-83600 & above 90-134 76-115 62-90 120-179 101-153 83-120

E 450-915 108-160 90-137 73-109 144-213 120-183 97-145915 & above 160-240 137-205 109-160 213-320 183-273 145-213

WEDGE / NARROW V-BELTS

SPZ / 3V 63-95 8-12 7-10 6-9 11-16 9-13 8-1295 & above 12-17 10-16 9-14 16-23 13-21 12-19

SPA 90-140 14-20 12-17 10-14 19-27 16-23 13-19140 & above 20-31 17-26 14-22 27-41 23-35 19-29

SPB / 5V 140-265 25-36 20-32 18-27 33-48 27-43 24-36265 & above 36-46 32-41 27-37 48-61 43-55 36-49

SPC 224-355 46-66 38-58 32-52 61-88 51-77 43-69355 & above 66-85 58-76 52-70 88-113 77-101 69-93

8V 335-520 81-107 68-90 56-73 108-143 91-120 75-97520 & above 107-167 90-140 73-113 143-223 120-187 97-151

CLASSICAL V-BELTSZX 40-100 5-7 5-6 3-5 6-9 6-8 5-6

100 & above 7-10 7-8 6-7 9-14 9-11 8-9

AX 63-140 9-14 8-12 7-9 12-18 11-15 9-12140 & above 14-21 12-16 9-14 18-28 15-21 12-18

BX 90-200 18-28 15-22 12-18 25-37 20-29 15-25200 & above 28-40 22-33 18-28 37-54 29-44 25-37

CX 140-400 36-53 30-44 23-36 48-71 40-58 31-48400 & above 53-81 44-67 36-53 71-107 58-89 48-71

WEDGE / NARROW V-BELTS

XPZ / 3VX 56-95 9-14 8-12 7-10 12-18 11-15 9-1495 & above 14-20 12-18 10-16 18-26 15-25 14-21

XPA 71-140 16-23 14-20 12-16 21-31 18-26 15-21140 & above 23-36 20-30 16-25 31-48 26-40 21-34

XPB / 5VX 112-265 29-41 23-37 21-31 38-55 31-49 28-41265 & above 41-53 37-47 31-43 55-71 49-63 41-57

XPC 180-355 53-76 44-67 37-60 71-101 58-89 49-80355 & above 76-98 67-87 60-81 101-130 89-117 80-107

WR

AP

PE

D

BE

LT

SC

UT

E

DG

E

BE

LT

S

MAINTENANCE OF V-BELTS

V-BELT TENSIONING

General guidelines for tensioning of V-Belt :

1) Ideal tension is the lowest tension at which the belt will not slip

under peak load conditions.

2) Check tension frequently during the first two days of operation.

3) Over tensioning shortens belt and bearing life.

4) Keep belts free from foreign material which may cause slip.

5) Make V-drive inspection on a periodic basis.

6) Adjust tension when slipping. Never apply belt dressing as this

will damage the belt and cause early failure.

IDLERS

An idler used in V-Belt drives is a wheel that is not 'loaded' and

may be grooved/flat pulley used for various reasons such as :

a. To provide take up for fixed centre drives.

b. To clear obstruction.

c. To break up long spans where belt vibrations may be a

problem.

d. To maintain tension to act as a clutching device.

NOTE - Diameter of outside idler should be one and half times

that of smaller pulley diameter or more and diameter of inside

idler should be approximately same as that of smaller pulley

diameter or more.

INSTALLATION & TAKE UP ALLOWANCE

The limiting values for adjustment of centres for the two

transmissions pulley shall be as follows:

LOWER LIMITING VALUE:

nominal centre distance minus 1.5% Lp

HIGHER LIMITING VALUE:

nominal centre distance plus 3% Lp. Where Lp is the Pitch

Length of the belt.

STORAGE OF V-BELTS

GENERAL GUIDELINES

Maintaining the proper storage conditions at the users place as

well as at the manufacturers place is an important parameter which

requires due attention from the concerned. Under favourable

storage conditions, PIX belts retain their initial serviceability and

dimensions. Good storage facilities and practices will allow the

users to achieve the best value from belts.

PIX V-belt should be stored in a cool & dry place with no direct

sunlight. When stacked on shelves the stacks should be small

enough to avoid excess weight on the bottom belts which may

cause distortion. When stored in containers the container size &

contents should be sufficiently limited to avoid distortion.

DONT'S

Do not store the belts on floor unless a suitable container is

provided. They may be exposed to moisture.

Do not store belts near windows which may permit exposure to

sunlight or moisture. Do not store belts near radiators or heater.

Do not store belts in the vicinity of transformers & electrical

motors. these devices may generate ozone.

Do not store belts in heavy bent condition.

METHODS OF STORAGE

The common method of storing the v-belts is to hang them in

crescent shaped pegs or pin racks.

Long v-belt should be coiled for easy distortion free storage.

Variable speed belts are more sensitive to distortion, it is

recommended that these belts should never be stored on pegs.

These belts should be always stored on shelves.

EFFECTS OF STORAGE

The shelf life of 6 years can be obtained if proper storage

conditions are maintained i.e., ambient temp. not more than 30°C

& relative humidity not more than 70%. If the storage temp.

increases then the service expectancy from the belts gets

reduced. Under rough estimates it can be said that for an increase

of 20oC temp. above the standard temp. range the belt life will be

reduced by 50%.

It is always recommended that if a drive is out of use for a

prolonged period, then the belt tension should be relaxed & the

necessary tension be provided when the drive is to be restarted.

91

DO’S AND DON'T’S

RIGHT WRONG

1. Ensure perfect alignment of pulleys.

3. Belts used in multiple drive should be of same manufacturer.

2. The grooves should be free from burrs, sharp edges, rust, oiland grease. To prevent this guard should be provided.

LIKE THIS

4. Do not pry or roll V-belts into the pulley grooves, if doneso, the belts get damaged internally as a result of which belt life is affected. Using drive take-up allowance enable the belts to be easily mounted on the pulleys.

92

NOT THIS

WRONG

DO’S AND DON'T’S (CONTD.)

5. For multiple drive, use as many V-belts required for betterservice life and low maintenance cost. For best results oneshould use PIX FREE SET belts. The whole set should be replaced if one belt fails. PIX belts should not be lubricated.

6. A change in ride out indicates uneven belt wear or wornsheaves. Change belt/sheave with new set.

7. Pulley should be checked whether it is manufactured asper international standards or not, and should also be checkedfor worn out sheaves. Bearings should also be checked for lubrication.

8. If the groove angle is too large, the canvas cover is quicklyworn out along the lower side walls and if possible, the uppercanvas gets worn out.

PLEASE REMEMBER1. Belt dressing should never be used.

2. Proper ventilation of belts driving unit is a must.

3. Tensioning should be checked from time to time.

93

1. BELT TURN OVER a) Poor drive alignment. : Realign

IN PULLEYS b) Incorrect pulley groove : Modify or replace pulleys.

or excessive wear in grooves.

c) Excessive belt flap. : Use an inside idler on slack side

d) Low belt tension. : Retension

e) Worn out belt. : Replace with new belts.

f) Ingress of foreign material. : Use more effective drive guard.

2. EXCESSIVE WEAR a) Incorrect pulley section. : Modify or replace pulleys.

b) Excessive wear in pulley groove. : Modify or replace pulleys.

c) Poor drive alignment. : Realign.

d) Small pulley diameter below : Redesign using correct pulley diameter/

Recommended.

e) Belt catching or protruding parts. : Remove protrusion or move drive away.

3. EXCESSIVE NOISE a) Poor drive alignment. : Realign.

b) Incorrect belt tension. : Retension.

c) Overloaded drive. : Check drive details & redesign.

d) Unbalanced pulleys. : Redesign, if necessary balance

the pulleys.

4. BELT SWELLING a) Contamination by oil or : Protect drive from contamination

OR SOFTENING other chemicals. clean pulley grooves with petrol or

alcohol before fitting new belts. If

contamination cannot be prevented

use PIX AOH construction V-Belts.

5. UN-USUAL BELT a) Worn out badly damaged grooves. : Modify or replace pulleys.

STRETCH b) Used belts with new belts on drive. : Replace with completely new set of belts.

c) Belts from different manufacturers. : For use in a set, belts must be from

one manufacturer.

6. BELT BREAKING a) Forcing belt over pulley when fitting, : Reduce drive centre distance to fit belt.

damaging cord & cover.AFTER FITMENT

b) Ingress of a foreign material. : Fit an effective guard.

c) Insufficient belts or wrong : Check drive design & fit correct no.

section for drive. or section of belts.

d) Drive stalled. : Ascertain cause & rectify.

SERVICE GUIDE

PROBLEMS CAUSES REMEDIES

94

SERVICE GUIDE

7. CUTS AND SPLITS a) Outside idler pulley in use. : Replace with inside idler pulley on the

IN THE BASE slack side of drive.

b) Pulley diameter too small. : Redesign using recommended minimum

pulley pitch diameters

c) Ambient temperature too high. : Ensure good ventilation & protect

the belts from direct heat/ Use PIX AOH

construction V-belts.

d) Ambient temperature too low. : Warm area surrounding drive.

e) Abnormal belt slip. : Check drive design to ensure correct

no. of belts, redesign if necessary, check

drive tension.

f) Contamination by oil or chemical. : Protect drive from contamination.

8. SEVERE BELT a) Drive has insufficient belts. : Check drive design & modify if necessary

VIBRATION

b) Centre distance more than : Shorten centre distance, use an inside

recommended. idler in the drive slack side.

c) High shock loading. : Use Banded belts/ Use an inside idler

pulley in the slack side.

d) Too low belt tension. : Retension the belt.

e) Unbalanced pulleys. : Balance the pulleys.

9. CANNOT BE a) Insufficient allowance for stretch : Give sufficient allowance for take up.

RETENSIONED in drive design.

b) Excessive stretch caused by : Recalculate drive design & modify.

insufficient belts or wrong belt

Section for drive.

c) Incorrect belt length. : Use a belt of proper length.

d) Belt from different manufacturers : For use in a set, belts must be

used on the same drive. from one manufacturer.


95

RIBBED BELTS (RMA/MPTA IP-26) CROSS SECTIONAL VIEW

Applications :

u House Keeping Electrical Appliances :

Dryers, Health keeping equipments

u Work Tools :

Harvester combines, Power driven sprayers and

Engines for work tools.

u Machine Tools :

N C lathes, Milling Machines, Drilling Machines and

Grinding Machines.

u Industrial Machines :

High speed Printing Machines, Flour Grinders, Agitators,

Air blowers, Generators, P U Compressors

u Others :

Broadcasting Equipment Drives & Hovercrafts

Characteristics :

u Good flexibility with high power carrying capacity per

unit width.

u Low stretch

u Speed ratios over 1 : 30 are possible

u High maximum belt speed upto 60 m/s. depending

upon the section.

u Only five sections cover the large power range from

0.1 kw upto more than 600 kw.

u Combines the advantages of flat belts with those of v-

belts.

u Premium Quality with heat, oil resistant and anti-static

properties

High tensile tension member across full width of belt for

maximum utilisation of face width.

Ribbed driving surface for maximum area of contact and

reduced face pressure

Special rubber compound for high frictional grip and

maximum tractive effort.

Size Designation :

Size - 550 J 8

550 J 8

55" J No. of

Effective Section RibsLength, Le

Size - 10 PJ 1397

10 PJ 1397

No. of PJ 1397 mm

Ribs Section Effective

Length, Le

96

t

e

t

e

LOW POWER DRIVES (DOMESTIC APPLIANCES)

BELT THICKNESS 't' (mm) 2.90

RIB PITCH 'e' (mm) 1.6

MAXIMUM BELT SPEED (m/s) 60

MINIMUM RECOMMENDED DIA (mm) 13RANGE (mm) 280 - 5080

LOW POWER DRIVES (INDUSTRIAL & DOMESTIC APPLIANCES)





MEDIUM POWER DRIVES (AUTOMOTIVE & INDUSTRIAL)

Auto Industrial (I)

BELT THICKNESS 't' (mm) 4.50 5.8

RIB PITCH 'e' (mm) 3.56 3.56

MAXIMUM BELT SPEED (m/s) 55 55

MINIMUM RECOMMENDED DIA (mm) 50 50RANGE (mm) 280 - 5080 280 - 5080

MEDIUM & HIGH POWER DRIVES (AGRICULTURAL & INDUSTRIAL)





VERY HIGH POWER DRIVES ( HEAVY AGRICULTURAL EQUIPMENTS, INDUSTRIAL APPLICATIONS INVOLVING VERY HIGH TORQUE RATINGS.





PRODUCT RANGE

SECTION PH

SECTION PJ

SECTION PK

SECTION PL

SECTION PM

97

t

e

t

e

t

e

STEP 7

STEP 1

STEP 2

STEP 3

STEP 4

STEP 5

STEP 6

Application Data

1. Type of machine to be driven

2. Nominal Power (kw), P

3. Type & nominal speed of motor

4. Driven Shaft speed

5. Duty cycle category

6. Approximate centre distance

Determine the service factor & the design power

1 To determine the service factor (K) refer table 29 on pg.100

2 Design power : Pd = P x K

Select the Ribbed Belt Section

Refer to the cross section selection chart IV on page 100

Select the effective diameter of the

small pulley (de)

Refer table 30 on page 102

Determine the speed ratio

SR = R / r

R = speed of faster shaft

r = speed of slower shaft

Calculate the Large pulley

effective diameter (De)

dp = de + (2 x h), for h refer page 102

Dp = dp x SR

De = Dp - (2 x h)

Select the nearest pulley diameter from table 31 on page 103

Dp = Pitch Diameter of large pulley in mm

Calculate the belt linear speed

V = p x dp x n m/s

60000

where, dp - Pitch Diameter of smaller pulley in mm

n - Speed of faster shaft (rpm)

STEP 8

STEP 9

STEP 10

Calculate the effective belt length2

Le = 2C + p x (De + de) + (De -de)

2 4C

Calculate the centre distance corres-ponding to the standard effective length

2C = X + 1 x X2 - (De - de)

4 2 4 2

where X = L - p x (De + de)

2

Calculate the number of belt ribs

1. Determine the length correction factor, CI

2. Determine the arc of contact on the small pulley

a = 180 - 60 x (De - de)

C

3. Determine the arc of contact correction factor, Ca

4. Determine the speed ratio correction factor, Cr

5. Determine the basic power rating per rib (BPR)

(Please refer appropriate tables for BPR)

6. Calculate the corrected power rating per rib (CPR)

CPR = (BPR + Cr) x Cl x Ca

7. Calculate the number of belt ribs

Number = Design power

CPR

(If the no. of Ribs comes in fraction, use next whole no.)

DRIVE DESIGN PROCEDURE FOR RIBBED BELTSThis Design Manual should be used for industrial drive calculation with two standard pulleys only.

Please contact us to know about more complex drive designs.

98

DRIVE DESIGN EXAMPLE FOR RIBBED BELTSThis Design Manual should be used for industrial drive calculation with two standard pulleys only.

Please contact us to know about more complex drive designs.

99

STEP 1

STEP 2

STEP 3

STEP 4

STEP 5

STEP 6

Application Data

1. Type of driven machine : Printing Machine

2. Nominal Power (kw), P : 20 kw

3. Type & nominal speed of motor : DC Motor, 1450 rpm

4. Driven Shaft speed : 884 rpm

5. Duty cycle category : Continuous, 24 hrs / day

6. Approximate centre distance : 500 mm

Determine the service factor & the design power

1. To determine the service factor (K) refer table 29 on Page 100. K=1.5

2. Design power : Pd = P x K

Pd = 20 x 1.5

Pd = 30 kw

Select Ribbed Belt Section

Section selected from the chart 4 on page 100 is

PL (Pd=30 kw, n=1450)

Select the effective diameter of the small pulley (de)

Refer to table 30 on page 102 de = 140 mm

Determine the speed ratio

SR = n/N SR = 1450 / 884

n = speed of faster shaft SR = 1.64

N = speed of slower shaft

Calculate the large pulley

effective diameter (De)

dp = de + (2 x h) dp = 140 + (2 x 2.3)

for h refer page 102 dp = 144.6 mm

Dp = dp x SR Dp = 144.6 x 1.64

Dp = 237.14 mm

De = Dp - (2 x h) De = 237.14 - (2 x 2.3)

De = 232.54 mm

Select the nearest pulley diameter from table 31 on page 103

Recommended standard pulley diameter De = 236 mm

Calculate the belt linear speed

V = p x dp x n m/s

60000

V = 3.14 x 144.60 x 1450 / 60000

V = 10.97 m/s

Calculate the effective belt length

2Le = 2C + p x (De + de) + (De -de)

2 4C

2Le = 2 x 500 + [1.57 (236+140)]+ (236 - 140)

4 x 500

Le = 1594.92 mm

Standard effective length, Le = 1595 mm

Calculate the centre distance corres-

ponding to the standard effective length

2C = X + 1 x X2 - (De - de)

4 2 4 2

where X = Le - p x (De + de)

2

X = 1595 - [1.57(236 +140)] , X = 1004.68

2 2C = 1004.68 / 4 +{0.5 [(1004.68) / 4] - [(236-140) / 2)]}

C = 500 mm

Calculate the number of ribs

1. Determine the length correction factor from table 42, page 109 C l = 0.95

2. Determine the arc of contact on the small pulley

a = [180 - 60 x (De - de)] / C

oa = [180 - 60 (236 - 140)] / 500 = 168.50

3. Determine the arc of contact correction factor from table 43, pg.109 Ca=0.96

4. Determine the speed ratio correction factor from table 41, pg. 109 Cr=0.120

5. Determine the basic power rating per rib (BPR) from table 40, pg.108 = 2.291 kw

6. Calculate the corrected power rating per rib (CPR)

CPR = (BPR+Cr) x Cl x Ca = (2.291+0.12) x 0.95 x 0.96

CPR = 2.199 kw / rib

7. Calculate the number of belt ribs

Number = Design power / Corrected Power Rating

= 30 / 2.199 = 13.64

Standard no. of ribs = 14

STEP 7

STEP 8

STEP 9

STEP 10

Table 29Service Factor Selection

Chart IV - Cross Section Selection

PJ

0.1

PK

PL

PM

0.5 1 5 10 50

DESIGN POWER (Pd)

SPEE

D O

F FA

STER

SH

AFT

(RP

M)

100 500

10000

5000

1000

500

Class A Class B

Motor Class D.C.Motors DC MotorsShunt wound Compound & Series woundA.C. Motors AC MotorsNormal Torque High Torque

Synchronous or Asynchronous Vector ControlDC Brushless Motors Reluctance motors

Driven Machine IC Engines Speed > 700 rpm IC engines single cylinderTurbines Speed < 700 rpm

Line shafts, clutches

DUTY CYCLE CLASS <10 H 10 - 16H > 16 H < 10 H 10 - 16 H > 16 H

CLASS 1 : LOW EVEN TORQUE 1.0 1.1 1.2 1.1 1.2 1.3

Vacuum Cleaners, liquid agitators, belt-

conveyors, blowers, centrifugal fans, Light Conveyors

CLASS 2 : MEDIUM EVEN TORQUE 1.1 1.2 1.3 1.2 1.3 1.4

Food agitators, mixers, laundry machines,

generators, machine tools, blenders

CLASS3 : TORQUE 1.2 1.3 1.4 1.3 1.4 1.5

Bakery & woodwork m/c, brick m/c, rotary-

compressors, pumps, heavy duty conveyors,

exciters, printing m/c, spraying m/c, axial fan

CLASS 4 : VERY UNEVEN TORQUE 1.4 1.5 1.6 1.5 1.6 1.8

Hammer mills, cement works, piston compr-

essors, bucket elevators, hoists, flour mills,

piston pumps, winches, paper mills

CLASS 5 : VERY UNEVEN TORQUE WITH OVERLOADS 1.6 1.7 1.8 1.7 1.8 2.0

crushers, grinder m/c, ball grinders, dredging m/c,

agricultural m/c, industrial rubber machinery (Calenders,

extruders, mixers)

100

PULLEY GROOVE DIMENSIONS - MILLIMETERS

Cross Minimum Groove Sg rt 2a rb hg dB Se

Section Recomm. Angle + 0.15 Minimum ±0.001

Outside ± 0.25 - 0.00

Diameter Degrees

H / PH 13 40 1.60 0.30 2.0± 0.03 0.15 0.58 + 0.00 1.04 1.00 + 0.5

- 0.15 - 0.3

J / PJ 20 40 2.34 0.40 3.0± 0.03 0.20 0.76 + 0.00 1.77 1.50 + 0.8

- 0.15 - 0.4

K / PK 40 40 3.56 0.50 3.0± 0.05 0.25 0.96 + 0.00 3.16 3.00 + 1.5

- 0.15 - 0.0

L / PL 75 40 4.70 0.40 10.0± 0.05 0.40 1.54 + 0.00 4.63 4.00 + 2.0

- 0.15 - 1.0

M / PM 180 40 9.40 0.75 13.0± 0.08 0.75 2.88 + 0.00 9.74 7.00 + 3.0

- 0.25 - 1.0

Sg

Figure : Standard groove dimensions

Face width of standard sheaves

Face width = S (Ng-1) +2S

WhereN = Number of grooves

g e

g

Se

hg

dB

rb

rt

OU

TSID

ED

IAM

ETE

R

PIT

CH

DIA

METE

R

DIA

MET

ER-

OV

ERBA

LLS

a

101

Design Power (Kw)

n (rpm) 0.25 0.5 1 2 4 7 10 20 30 50 75 100 125 150 175 200

100 45 60 75 95 125 160 180 224 250 315 355 400 450 500 500 500

300 40 50 63 80 106 125 140 180 212 250 280 315 355 355 400 400

500 35 45 60 75 95 112 125 160 180 224 250 280 315 315 355 355

750 35 45 56 67 85 106 118 150 170 200 224 250 280 280 315 315

1000 30 40 50 63 80 95 106 132 150 190 200 224 250 250 280 280

1500 30 35 45 60 71 85 95 125 140 170 180 200 212 224 236 250

2000 30 35 45 56 67 80 90 112 125 150 170 180 200 212 224 224

3000 25 30 40 50 60 71 80 100 112 132 150 160 170 180 190 200

4000 25 30 35 45 56 67 71 90 100 118 132 140 150 160 170 180

5000 20 30 35 40 50 60 67 80 95 106 125 132 140 150

6000 20 25 30 40 50 56 63 75 85 100 112 125

7000 20 25 30 40 45 56 60 75 85 95 106 118

8000 20 25 30 35 45 50 56 71 80 90 100 112

9000 20 20 30 35 40 50 56 67 75 85 9510000 20 20 30 35 40 45 50 63 75 80 90

DEFINITION OF THE SMALL PULLEY EFFECTIVE DIAMETER (mm)

Pitch Diameter (mm) = Effective Diameter (mm) + (2 x h)

Belt Section PJ PK PL PM

h (mm) 1.05 1.60 2.30 2.60

Table 30

Determination of the Small Pulley effective diameter

102

Effective SECTION PJ SECTION PK SECTION PL SECTION PMDiameter No. of Ribs No. of Ribs No. of Ribs No. of Ribs

(mm) 4,8,12,16,20 6,8,10,12,16,20 6,8,10,12,16,20 6,10,16,20

20 l

25 l

30 l

35 l

40 l

45 l

50 l

56 l l

60 l l

63 l l

67 l l

71 l l

75 l l l

80 l l l

85 l l l

90 l l l

95 l l l

100 l l l

106 l l l

112 l l l

118 l l l

125 l l l

132 l l l

140 l l l

150 l l

160 l l l

170 l l

180 l l l l

190 l l l

200 l l l l

212 l l l

224 l l l l

236 l l

250 l l l l

280 l l l l

315 l l l l

355 l l l l

400 l l l l

450 l l l

500 l l l

560 l

630 l l

710 l

800 l

103

TABLE 31STANDARD PULLEYS

104

Tab

le 3

2 S

ect

ion P

J B

asic

po

wer

rati

ng p

er

rib

(kw

) fo

r sm

all p

ulle

y eff

ect

ive d

iam

ete

r (m

m)

de

20

25

30

32

35

40

45

50

56

60

63

67

71

75

80

85

90

95

100

112

118

125

132

140

160

180

200

224

250

280

315

355

400

10

00

.04

80

.00

70

.01

00

.01

00

.01

10

.01

40

.01

50

.01

70

.02

10

.02

30

.02

40

.02

50

.02

70

.03

00

.03

20

.03

40

.03

70

.03

80

.03

80

.04

50

.04

80

.05

10

.05

40

.05

80

.06

70

.07

40

.08

40

.09

40

.10

40

.11

90

.01

10

.15

10

.17

0

S2

00

0.0

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0.0

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0.0

17

0.0

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0.0

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0.0

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0.0

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0.0

41

0.0

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0.1

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0.2

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0.2

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0.0

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67

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0.0

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0.1

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0.0

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0.0

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0.0

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0.1

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0.1

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0.1

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0.1

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0.1

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0.1

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0.1

58

0.1

70

0.1

95

0.2

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0.2

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0.2

71

0.3

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0.3

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0.0

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0.4

33

0.4

87

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0.0

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0.0

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0.0

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0.1

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0.1

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0.1

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0.1

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0.1

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0.1

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0.1

57

0.1

77

0.1

87

0.1

97

0.2

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0.2

21

0.2

54

0.2

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0.3

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0.3

60

0.4

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0.4

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0.0

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0.5

69

0.6

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0.1

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0.1

23

0.1

32

0.1

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0.1

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0.1

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0.1

72

0.1

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0.1

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0.2

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0.2

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0.2

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0.2

60

0.2

74

0.3

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0.3

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0.3

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0.4

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0.4

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0.5

55

0.0

62

0.7

01

0.7

85

d5

60

0.0

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0.0

37

0.0

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0.0

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0.0

61

0.0

74

0.0

85

0.0

98

0.1

12

0.1

22

0.1

29

0.1

39

0.1

47

0.1

55

0.1

68

0.1

80

0.1

92

0.2

01

0.2

14

0.2

44

0.2

57

0.2

72

0.2

87

0.3

04

0.3

50

0.3

97

0.4

41

0.5

25

0.5

52

0.6

18

0.0

69

0.7

80

0.8

72

60

00

.02

60

.04

20

.05

10

.05

80

.06

50

.07

90

.09

00

.10

40

.12

00

.31

20

.13

70

.14

70

.15

80

.16

50

.18

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.19

10

.20

50

.21

80

.23

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.26

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.27

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.29

10

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80

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0.0

62

0.0

68

0.0

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92

0.1

06

0.1

21

0.1

38

0.1

50

0.1

60

0.1

71

0.1

83

0.1

95

0.2

07

0.2

20

0.2

35

0.2

53

0.2

67

0.3

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0.3

18

0.3

37

0.3

58

0.3

80

0.4

34

0.4

91

0.5

44

0.6

28

0.6

81

0.7

61

0.0

85

0.9

59

0.9

30

f7

20

0.0

31

0.0

48

0.0

63

0.0

70

0.0

79

0.0

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0.1

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0.1

24

0.1

42

0.1

55

0.1

64

0.1

74

0.1

88

0.2

00

0.2

15

0.2

30

0.2

44

0.2

58

0.2

74

0.3

08

0.3

27

0.3

47

0.3

67

0.3

90

0.4

45

0.5

04

0.5

60

0.6

94

0.7

01

0.7

81

0.0

86

0.9

84

1.0

72

80

00

.03

50

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30

.07

00

.07

60

.08

60

.10

40

.12

10

.13

70

.15

70

.17

20

.18

00

.19

50

.20

80

.22

10

.23

60

.25

40

.27

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.28

70

.30

10

.34

20

.36

10

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40

.40

40

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10

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50

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50

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.77

40

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20

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10

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51

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0

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0.0

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0.0

59

0.0

76

0.0

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0.0

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0.1

17

0.1

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0.1

54

0.1

76

0.1

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0.2

03

0.2

17

0.2

33

0.1

47

0.2

64

0.2

84

0.3

00

0.3

21

0.3

38

0.3

81

0.4

02

0.4

28

0.4

54

0.4

81

0.5

50

0.6

21

0.6

90

0.8

21

0.8

60

0.9

61

0.1

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1.2

00

1.2

10

h9

60

0.0

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0.0

61

0.0

82

0.0

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0.1

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0.1

23

0.1

43

0.1

65

0.1

87

0.2

04

0.2

15

0.2

32

0.2

47

0.2

63

0.2

81

0.3

01

0.3

21

0.3

41

0.3

60

0.4

04

0.4

28

0.4

54

0.4

80

0.5

11

0.5

87

0.6

62

0.7

34

0.8

55

0.9

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1.0

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1.2

75

1.3

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0.1

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0.1

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0.1

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0.1

77

0.2

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0.2

31

0.2

51

0.2

67

0.2

85

0.3

06

0.3

25

0.3

48

0.3

72

0.3

95

0.4

20

0.4

41

0.5

01

0.5

30

0.5

60

0.5

94

0.6

31

0.7

21

0.8

14

0.9

04

1.1

56

1.1

21

1.2

47

0.1

38

1.5

45

1.4

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1

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2

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.13

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.35

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.58

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2

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.16

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.39

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.41

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40

.58

10

.61

50

.65

00

.73

10

.77

10

.82

00

.86

50

.91

71

.05

00

.17

61

.30

01

.57

61

.59

21

.75

50

.19

22

.11

42

.12

5

l2

00

00

.08

20

.12

40

.16

50

.18

00

.20

70

.24

60

.28

70

.32

70

.37

50

.40

50

.43

10

.46

10

.49

10

.52

30

.56

40

.60

00

.64

10

.67

90

.71

70

.80

70

.85

00

.90

10

.95

41

.01

01

.15

10

.29

00

.42

11

.70

21

.73

41

.90

20

.20

72

.26

02

.29

2

22

00

0.0

90

0.1

33

0.1

80

0.1

98

0.2

26

0.2

70

0.3

14

0.3

57

0.4

10

0.4

44

0.4

71

0.5

04

0.5

40

0.5

74

0.6

14

0.6

54

0.7

00

0.7

41

0.7

81

0.8

80

0.9

28

0.9

84

1.0

37

1.1

01

1.2

52

1.4

00

1.5

41

1.8

22

1.8

64

2.0

38

0.2

20

2.3

84

2.4

26

p2

40

00

.09

60

.14

50

.19

30

.21

50

.24

50

.29

30

.34

00

.38

70

.44

40

.48

20

.51

10

.54

70

.58

40

.62

20

.66

50

.71

00

.75

80

.80

30

.84

70

.95

11

.00

41

.06

41

.12

31

.18

71

.35

21

.50

71

.65

41

.93

21

.98

82

.16

00

.23

02

.48

02

.52

6

u2

60

00

.10

40

.15

60

.21

00

.23

20

.26

50

.31

50

.36

60

.41

90

.48

00

.52

00

.55

00

.59

00

.63

00

.66

70

.71

80

.76

50

.81

50

.86

30

.91

01

.02

41

.07

71

.14

11

.20

41

.27

51

.44

51

.60

81

.76

22

.03

62

.10

02

.26

70

.24

82

.57

82

.58

8

l2

80

00

.11

10

.16

60

.22

50

.24

70

.28

20

.33

70

.39

40

.44

80

.51

40

.55

60

.58

70

.63

20

.67

40

.71

60

.76

80

.82

00

.87

20

.92

30

.97

11

.09

31

.15

11

.21

71

.28

41

.35

91

.53

71

.70

41

.86

02

.07

52

.20

02

.35

90

.25

12

.58

52

.60

8

l2

88

00

.11

40

.17

10

.23

10

.25

40

.29

00

.34

50

.40

30

.46

00

.52

60

.57

20

.60

50

.64

70

.69

20

.73

50

.78

80

.84

00

.89

20

.94

70

.99

51

.12

01

.18

01

.24

71

.31

41

.39

11

.57

31

.74

51

.90

22

.13

02

.23

72

.39

10

.25

42

.59

02

.58

5

e3

00

00

.11

80

.18

00

.24

10

.26

50

.30

10

.36

00

.42

00

.47

70

.54

70

.59

40

.62

70

.67

10

.71

70

.76

30

.81

90

.87

40

.92

80

.98

11

.03

51

.16

01

.22

00

.29

11

.36

11

.44

01

.62

41

.79

81

.95

72

.21

52

.28

82

.39

00

.25

42

.58

8

y3

20

00

.12

50

.19

00

.25

30

.28

10

.32

00

.38

30

.44

40

.50

70

.58

00

.63

00

.66

50

.71

30

.76

30

.80

80

.86

50

.92

40

.98

11

.04

01

.09

31

.22

81

.29

21

.36

51

.43

71

.51

81

.71

01

.88

62

.07

12

.28

72

.36

42

.43

20

.25

52

.55

4

34

00

0.1

32

0.2

01

0.2

70

0.2

97

0.3

37

0.4

05

0.4

70

0.5

35

0.6

14

0.6

65

0.7

04

0.7

54

0.8

04

0.8

55

0.9

16

0.9

74

1.0

37

1.0

97

1.1

53

1.2

93

1.3

60

1.4

34

1.5

10

1.5

94

1.7

90

1.9

69

2.1

24

2.3

54

2.4

25

2.4

91

0.2

52

36

00

0.1

40

0.2

11

0.2

84

0.3

14

0.3

74

0.4

27

0.4

95

0.5

54

0.6

46

0.7

00

0.7

40

0.7

94

0.8

45

0.8

96

0.9

65

1.0

25

1.0

90

1.1

53

1.2

13

1.3

56

1.4

24

1.5

04

1.5

80

1.6

67

1.8

65

2.0

45

2.2

01

0.4

07

2.4

74

2.5

28

r3

80

00

.14

60

.22

30

.30

00

.33

00

.39

20

.44

80

.52

10

.59

50

.68

00

.73

50

.77

80

.83

30

.88

80

.94

41

.01

11

.07

71

.14

31

.20

81

.27

51

.41

81

.49

01

.57

11

.65

01

.73

71

.93

72

.11

52

.26

62

.44

82

.50

42

.54

7

p4

00

00

.15

40

.23

40

.31

40

.34

50

.41

00

.47

00

.54

50

.62

10

.71

20

.77

00

.81

50

.87

00

.93

10

.97

71

.05

61

.12

71

.19

51

.26

11

.32

51

.47

81

.55

40

.63

41

.71

41

.80

42

.00

62

.18

02

.32

42

.47

82

.52

02

.54

4

m4

20

00

.16

00

.24

50

.32

80

.36

00

.42

60

.49

10

.57

00

.65

10

.74

30

.80

40

.85

20

.91

10

.97

21

.03

11

.10

11

.17

51

.24

51

.31

41

.38

11

.53

81

.61

11

.69

51

.77

81

.86

82

.06

72

.23

52

.37

12

.49

42

.52

22

.51

7

44

00

0.1

67

0.2

52

0.3

43

0.3

76

0.4

37

0.5

12

0.5

95

0.6

77

0.7

75

0.8

40

0.8

87

0.9

50

1.0

12

1.0

73

1.1

48

1.2

21

1.2

95

1.3

66

1.4

35

1.5

95

1.6

70

1.7

57

1.8

40

1.9

28

2.1

27

2.2

90

2.4

10

2.4

98

2.5

02

45

00

0.1

70

0.2

60

0.3

47

0.3

84

0.4

46

0.5

22

0.6

07

0.6

92

0.7

90

0.8

56

0.9

05

0.9

68

1.0

32

1.0

94

1.1

71

1.2

45

1.3

18

1.3

91

1.4

61

1.6

23

1.7

02

1.7

84

1.8

67

1.9

57

2.1

55

2.3

13

2.4

25

2.4

98

2.4

88

46

00

0.1

74

0.2

63

0.3

55

0.3

90

0.4

63

0.6

33

0.6

20

0.7

05

0.8

07

0.8

74

0.9

23

0.9

87

1.0

52

1.1

14

1.1

95

1.2

67

1.3

41

1.4

15

1.4

85

1.6

50

1.7

27

1.8

14

1.8

97

1.9

87

2.1

81

2.3

34

2.4

40

2.4

87

48

00

0.1

79

0.2

74

0.3

70

0.4

04

0.4

80

0.5

54

0.6

44

0.7

32

0.8

38

0.9

06

0.9

57

1.0

21

1.0

91

1.1

56

1.2

36

1.3

14

1.3

90

1.4

65

1.5

38

1.7

04

1.7

81

1.8

69

1.9

51

2.0

38

2.2

28

2.3

70

2.4

57

2.4

63

50

00

0.1

85

0.2

83

0.3

82

0.4

22

0.4

98

0.5

74

0.6

67

0.7

61

0.8

69

0.9

40

0.9

93

1.0

62

1.1

30

1.1

94

1.2

77

1.3

57

1.4

37

1.5

11

1.5

87

1.7

55

1.8

34

1.9

22

2.0

01

2.0

88

2.2

69

2.4

00

2.4

65

52

00

0.1

94

0.2

97

0.3

97

0.4

37

0.5

14

0.5

95

0.6

91

0.7

87

0.8

97

0.9

72

1.0

27

1.0

97

1.1

67

1.2

35

1.3

21

1.4

02

1.4

83

1.5

60

1.6

35

1.8

04

1.8

81

1.9

72

2.0

50

2.1

34

2.3

08

2.4

20

2.4

65

54

00

0.2

01

0.3

06

0.4

11

0.4

52

0.5

22

0.6

16

0.7

15

0.8

14

0.9

27

1.0

05

1.0

61

1.1

34

1.2

04

1.2

76

1.3

62

1.4

42

1.5

25

1.6

05

1.6

81

1.8

51

1.9

30

2.0

14

2.0

95

2.1

75

2.3

36

2.4

34

2.4

51

55

00

0.2

04

0.3

11

0.4

19

0.4

60

0.5

32

0.6

26

0.7

27

0.8

26

0.9

43

1.0

20

1.0

77

1.1

50

1.2

24

1.2

94

1.3

81

1.4

65

1.5

47

1.6

27

1.7

02

1.8

74

1.9

51

2.0

35

2.1

14

2.1

95

2.3

52

2.4

37

2.4

41

56

00

0.2

07

0.3

14

0.4

26

0.4

67

0.5

48

0.6

36

0.7

38

0.8

40

0.9

57

1.0

36

1.0

94

1.1

67

1.2

42

1.3

14

1.4

02

1.4

85

1.5

69

1.6

18

1.7

25

1.8

96

1.9

74

2.0

58

2.1

36

2.2

14

2.3

65

2.4

37

2.4

25

58

00

0.2

11

0.3

25

0.4

38

0.4

82

0.5

65

0.6

57

0.7

64

0.8

67

0.9

87

1.0

67

1.1

25

1.2

02

1.2

77

1.3

50

1.4

41

1.5

24

1.6

11

1.6

90

1.7

68

1.9

37

2.0

15

2.0

98

2.1

73

2.2

47

2.3

81

2.2

34

60

00

0.2

18

0.3

37

0.4

52

0.4

97

0.5

81

0.6

75

0.7

84

0.8

92

1.0

15

1.0

98

1.1

59

1.2

37

1.3

14

1.3

87

1.4

79

1.5

65

1.6

51

1.7

32

1.8

08

1.9

76

2.0

54

2.1

34

2.2

00

2.2

77

2.3

95

2.4

20

62

00

0.2

24

0.3

44

0.4

64

0.5

12

0.5

97

0.6

95

0.8

07

0.9

18

1.0

45

1.1

28

1.1

90

1.2

70

1.3

47

1.4

25

1.5

16

1.6

05

1.6

90

1.7

71

1.8

47

2.0

15

2.0

90

2.1

69

2.2

37

2.3

00

2.4

00

2.3

97

64

00

0.2

32

0.3

56

0.4

77

0.5

26

0.6

15

0.7

16

0.8

30

0.9

41

1.0

74

1.1

58

1.2

22

1.3

01

1.3

83

1.4

60

1.5

51

1.6

42

1.7

27

1.8

08

1.8

85

2.0

51

2.1

24

2.1

97

2.2

63

2.3

21

2.3

98

66

00

0.2

39

0.3

66

0.4

91

0.5

42

0.6

32

0.7

35

0.8

53

0.9

67

1.1

00

1.1

79

1.2

51

1.3

35

1.4

12

1.4

93

1.5

88

1.6

77

1.7

64

1.8

46

1.9

22

2.0

84

2.1

55

2.2

25

2.2

84

2.3

37

2.3

90

68

00

0.2

45

0.3

75

0.5

05

0.5

55

0.6

47

0.7

55

0.8

75

0.9

92

1.1

29

1.2

17

1.2

82

1.3

65

1.4

48

1.5

25

1.6

23

1.7

13

1.7

97

1.8

80

1.9

54

2.1

11

2.1

81

2.2

47

2.3

02

2.3

44

2.3

75

70

00

0.2

51

0.3

86

0.5

18

0.5

70

0.6

64

0.7

70

0.8

97

1.0

15

1.1

56

1.2

46

1.3

10

1.3

97

1.4

80

1.5

60

1.6

54

1.7

47

1.8

33

1.9

13

1.9

87

2.1

43

2.2

05

2.2

67

2.3

14

2.3

51

2.3

50

72

00

0.2

55

0.3

96

0.5

31

0.5

84

0.6

80

0.7

92

0.9

19

1.0

40

1.1

83

1.2

75

1.3

41

1.4

28

1.5

12

1.5

92

1.6

87

1.7

79

1.8

63

1.9

43

2.0

17

2.1

67

2.2

25

2.2

81

2.3

23

2.3

51

74

00

0.2

64

0.4

05

0.5

44

0.5

97

0.6

95

0.8

12

0.9

40

1.0

64

1.2

08

1.3

02

1.3

70

1.4

56

1.5

41

1.6

21

1.7

18

1.8

10

1.8

93

1.9

74

2.0

44

2.1

87

2.2

45

2.2

94

2.3

27

2.3

44

76

00

0.2

69

0.4

12

0.5

57

0.6

12

0.7

00

0.8

30

0.9

60

1.0

87

1.2

35

1.3

28

1.3

97

1.4

84

1.5

71

1.6

50

1.7

47

1.8

40

1.9

22

2.0

01

2.0

70

2.2

08

2.2

56

2.3

01

2.3

28

2.3

34

78

00

0.2

74

0.4

23

0.5

70

0.6

27

0.7

11

0.8

47

0.9

82

1.1

10

1.2

60

1.3

55

1.4

25

1.5

12

1.6

00

1.6

81

1.7

76

1.8

67

1.9

50

2.0

27

2.0

95

2.2

24

2.2

70

2.3

05

2.3

21

2.3

15

80

00

0.2

81

0.4

33

0.5

81

0.6

40

0.7

25

0.8

66

1.0

01

1.1

34

1.2

85

1.3

82

1.4

52

1.5

42

1.6

27

1.7

10

1.8

04

1.8

95

1.9

77

2.0

51

2.1

15

2.2

34

2.2

75

2.3

04

2.3

11

2.2

94

82

00

0.2

82

0.4

42

0.5

94

0.6

54

0.7

42

0.8

85

1.0

22

1.1

57

1.3

10

1.4

06

1.4

77

1.5

68

1.6

55

1.7

37

1.8

33

1.9

21

2.0

01

2.0

71

2.1

34

2.2

44

2.2

80

2.3

00

2.2

97

84

00

0.2

91

0.4

51

0.6

06

0.6

66

0.7

55

0.9

03

1.0

42

1.1

79

1.3

34

1.4

32

1.5

02

1.5

94

1.6

80

1.7

63

1.8

58

1.9

45

2.0

22

2.0

92

2.1

51

2.2

50

2.2

80

2.0

91

2.2

77

86

00

0.3

00

0.4

60

0.6

18

0.6

81

0.7

72

0.9

20

1.0

61

1.2

00

1.3

55

1.4

56

1.5

27

1.6

18

1.7

05

1.7

88

1.8

81

1.9

64

2.0

41

2.1

11

2.1

64

2.2

54

2.2

77

2.2

76

2.2

51

88

00

0.3

02

0.4

70

0.6

30

0.6

94

0.7

86

0.9

37

1.0

89

1.2

21

1.3

80

1.4

80

1.5

52

1.6

45

1.7

30

1.8

11

1.9

04

1.9

87

2.0

61

2.1

25

2.1

75

2.2

57

2.2

67

2.2

58

90

00

0.3

09

0.4

79

0.6

42

0.7

06

0.8

01

0.9

55

1.1

01

1.2

41

1.4

02

1.5

02

1.5

75

1.6

67

1.7

54

1.8

31

1.9

25

2.0

06

2.0

77

2.1

38

2.1

86

2.2

51

2.2

57

2.2

35

92

00

0.3

14

0.4

88

0.6

53

0.7

20

0.8

14

0.9

72

1.1

20

1.2

64

1.4

24

1.5

25

1.5

98

1.6

90

1.7

75

1.8

56

1.9

44

2.0

23

2.0

94

2.1

50

2.1

92

2.2

45

2.2

40

94

00

0.3

20

0.4

96

0.6

66

0.7

33

0.8

30

0.9

87

1.1

40

1.2

83

1.4

45

1.5

47

1.6

20

1.7

13

1.7

97

1.8

76

1.9

64

2.0

41

2.1

07

2.1

60

2.1

98

2.2

35

2.2

20

96

00

0.3

28

0.5

04

0.6

77

0.7

45

0.8

44

1.0

04

1.1

56

1.3

02

1.6

78

1.5

68

1.6

42

1.7

33

1.8

18

1.8

92

1.9

81

2.0

55

2.1

18

1.1

66

2.2

01

2.2

22

2.1

97

98

00

0.3

31

0.5

15

0.6

90

0.7

57

0.8

57

1.0

22

1.1

70

1.3

21

1.4

88

1.4

90

1.6

61

1.7

53

1.8

37

1.9

12

1.9

98

2.0

70

2.1

27

2.1

70

2.2

00

2.2

04

10

00

00

.33

90

.52

30

.70

00

.77

00

.87

21

.03

71

.19

31

.34

11

.50

71

.61

01

.68

11

.77

31

.85

21

.93

02

.01

10

.08

02

.13

52

.17

22

.19

72

.18

1

SPEED 1.00 to 1.02 to 1.05 to 1.10 to 1.17 to 1.27 to 1.41 to aboveRATIO 1.01 1.04 1.09 1.16 1.26 1.40 1.65 1.66

100 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00200 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00300 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00400 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00500 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00560 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01600 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01700 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01720 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01800 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.01900 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.01960 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.01

1000 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.011200 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.011400 0.00 0.00 0.00 0.01 0.01 0.01 0.01 0.011440 0.00 0.00 0.00 0.01 0.01 0.01 0.01 0.011600 0.00 0.00 0.00 0.01 0.01 0.01 0.01 0.021800 0.00 0.00 0.00 0.01 0.01 0.01 0.01 0.022000 0.00 0.00 0.01 0.01 0.01 0.01 0.02 0.022200 0.00 0.00 0.01 0.01 0.01 0.01 0.02 0.022400 0.00 0.00 0.01 0.01 0.01 0.02 0.02 0.022600 0.00 0.00 0.01 0.01 0.01 0.02 0.02 0.022800 0.00 0.00 0.01 0.01 0.02 0.02 0.02 0.032880 0.00 0.00 0.01 0.01 0.02 0.02 0.02 0.033000 0.00 0.00 0.01 0.01 0.02 0.02 0.02 0.033200 0.00 0.00 0.01 0.01 0.02 0.02 0.03 0.033400 0.00 0.00 0.01 0.01 0.02 0.02 0.03 0.033600 0.00 0.01 0.01 0.01 0.02 0.02 0.03 0.033800 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.044000 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.044200 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.044400 0.00 0.01 0.01 0.02 0.02 0.03 0.04 0.044500 0.00 0.01 0.01 0.02 0.02 0.03 0.04 0.044600 0.00 0.01 0.01 0.02 0.02 0.03 0.04 0.044800 0.00 0.01 0.01 0.02 0.03 0.03 0.04 0.055000 0.00 0.01 0.01 0.02 0.03 0.03 0.04 0.055200 0.00 0.01 0.01 0.02 0.03 0.04 0.04 0.055400 0.00 0.01 0.01 0.02 0.03 0.04 0.04 0.055500 0.00 0.01 0.01 0.02 0.03 0.04 0.04 0.055600 0.00 0.01 0.02 0.02 0.03 0.04 0.05 0.055800 0.00 0.01 0.02 0.02 0.03 0.04 0.05 0.066000 0.00 0.01 0.02 0.02 0.03 0.04 0.05 0.066200 0.00 0.01 0.02 0.03 0.03 0.04 0.05 0.066400 0.00 0.01 0.02 0.03 0.03 0.04 0.05 0.066600 0.00 0.01 0.02 0.03 0.04 0.04 0.05 0.066800 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.067000 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.077200 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.077400 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.077400 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.077600 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.077800 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.078000 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.088200 0.00 0.01 0.02 0.03 0.04 0.06 0.06 0.088400 0.00 0.01 0.02 0.03 0.05 0.06 0.07 0.088600 0.00 0.01 0.02 0.04 0.05 0.06 0.07 0.088800 0.00 0.01 0.02 0.04 0.05 0.06 0.07 0.089000 0.00 0.01 0.02 0.04 0.05 0.06 0.07 0.099200 0.00 0.01 0.02 0.04 0.05 0.06 0.07 0.099400 0.00 0.01 0.03 0.04 0.05 0.06 0.08 0.099600 0.00 0.01 0.03 0.04 0.05 0.07 0.08 0.099800 0.00 0.01 0.03 0.04 0.05 0.07 0.08 0.09

10000 0.00 0.01 0.03 0.04 0.05 0.07 0.08 0.10

EFFECTIVE CORRECTION

LENGTH FACTOR

upto 200 0.60

200 - 350 0.80

350 - 500 0.85

500 - 700 0.90

700 - 900 0.95

900 - 1200 1.00

1200 - 1500 1.05

1500 - 2000 1.10

2000 - 2500 1.15above 2500 1.20

Table 34

Length Correction Factor

ARC OF CORRECTION

CONTACT ON FACTOR

SMALL PULLEY

100 0.72

110 0.76

120 0.80

130 0.84

140 0.88

150 0.91

160 0.94

170 0.97

180 1.00

190 1.02

200 1.05

210 1.07

220 1.09

230 1.11

Table 35

Arc of contactCorrection Factor

105

Table 33 SECTION PJSPEED RATIO CORRECTION FACTOR

Tab

le 3

6 S

ect

ion P

K B

asic

po

wer

rati

ng p

er

rib

(kw

) fo

r sm

all p

ulle

y eff

ect

ive d

iam

ete

r (m

m)

de

50

56

60

63

67

71

75

80

85

90

95

100

106

112

118

125

132

140

160

180

200

224

250

280

315

355

400

450

500

560

630

10

00

.02

20

.03

10

.03

40

.03

70

.04

10

.04

70

.05

10

.05

70

.06

40

.06

80

.07

40

.08

00

.87

70

.09

40

.10

10

.10

70

.11

40

.12

50

.14

40

.16

70

.19

10

.21

50

.24

40

.27

50

.31

40

.35

40

.40

10

.45

40

.50

40

.56

70

.63

6

20

00

.04

40

.05

60

.06

40

.07

40

.08

20

.09

10

.10

00

.11

00

.12

00

.13

20

.14

40

.15

40

.16

70

.18

00

.19

30

.20

70

.22

10

.24

00

.28

10

.32

50

.36

50

.41

40

.47

00

.53

10

.60

20

.68

40

.77

40

.87

40

.97

51

.09

11

.22

5

30

00

.06

50

.08

40

.09

40

.10

40

.12

00

.13

20

.14

50

.16

00

.17

50

.19

20

.21

00

.22

50

.24

40

.26

20

.28

20

.30

40

.32

40

.35

10

.41

10

.47

50

.53

50

.61

00

.68

90

.77

80

.88

11

.00

21

.13

41

.28

01

.42

41

.59

71

.79

4

S4

00

0.0

81

0.1

08

0.1

25

0.1

38

0.1

54

0.1

71

0.1

90

0.2

11

0.2

30

0.2

51

0.2

75

0.2

95

0.3

21

0.3

44

0.3

66

0.3

98

0.4

25

0.4

60

0.5

40

0.6

21

0.7

01

0.8

00

0.9

02

1.0

21

1.1

57

1.3

12

1.4

84

1.6

73

1.8

61

2.0

84

2.3

37

p5

00

0.1

00

0.1

32

0.1

54

0.1

70

0.1

90

0.2

11

0.2

31

0.2

58

0.2

84

0.3

10

0.3

34

0.3

61

0.3

91

0.4

24

0.4

55

0.4

90

0.5

25

0.5

67

0.6

65

0.7

65

0.8

66

0.9

85

1.1

12

1.2

55

1.4

25

1.6

12

1.8

25

2.0

54

2.2

81

2.5

50

2.8

50

e5

60

0.1

11

0.1

47

0.1

70

0.1

87

0.2

11

0.2

35

0.2

56

0.2

86

0.3

14

0.3

45

0.3

74

0.4

02

0.4

35

0.4

71

0.5

02

0.5

44

0.5

84

0.6

30

0.7

41

0.8

51

0.9

61

1.0

94

1.2

34

1.3

94

1.5

81

1.7

92

2.0

24

2.2

80

2.5

30

2.8

22

3.1

56

e6

00

0.1

18

0.1

53

0.1

81

0.2

00

0.2

25

0.2

50

0.2

75

0.3

05

0.3

35

0.3

66

0.3

98

0.4

28

0.4

65

0.5

01

0.5

38

0.5

81

0.6

21

0.6

70

0.7

91

0.9

08

1.0

25

1.1

67

1.3

14

1.4

88

1.6

85

1.9

10

2.1

57

2.4

27

2.6

91

3.0

00

3.3

51

d7

00

0.1

34

0.1

78

0.2

08

0.2

30

0.2

56

0.2

87

0.3

15

0.3

51

0.3

85

0.4

24

0.4

60

0.4

95

0.5

36

0.5

80

0.6

22

0.6

71

0.7

18

0.7

71

0.9

14

1.0

48

1.1

84

1.3

44

1.5

18

1.7

14

1.8

41

2.1

98

2.4

78

2.7

84

3.0

82

3.4

28

3.8

17

72

00

.13

80

.18

40

.21

20

.23

50

.26

50

.29

40

.32

50

.36

10

.40

80

.43

40

.47

20

.50

60

.55

10

.59

40

.63

60

.68

70

.73

70

.79

40

.93

41

.07

71

.21

41

.38

01

.55

81

.76

11

.99

22

.25

42

.54

12

.85

53

.15

83

.51

13

.90

5

o8

00

0.1

50

0.2

01

0.2

34

0.2

61

0.2

91

0.3

24

0.3

54

0.3

94

0.4

36

0.4

78

0.5

20

0.5

60

0.6

08

0.6

55

0.7

04

0.7

58

0.8

14

0.8

72

1.0

31

1.1

87

1.3

41

1.5

21

1.7

17

1.9

38

2.1

93

2.4

75

2.7

92

3.1

30

3.4

54

3.8

34

4.2

51

f9

00

0.1

66

0.2

24

0.2

61

0.2

85

0.3

24

0.3

61

0.3

95

0.4

44

0.4

89

0.5

34

0.5

78

0.6

24

0.6

77

0.7

31

0.7

84

0.8

45

0.9

08

0.9

76

1.1

52

1.3

24

1.4

94

1.6

95

1.9

11

2.1

57

2.4

37

2.7

51

3.0

92

3.4

62

3.8

11

4.2

14

4.6

51

96

00

.17

60

.23

70

.27

60

.30

50

.34

50

.38

20

.42

10

.47

00

.51

80

.56

50

.61

10

.66

20

.71

80

.77

70

.83

10

.89

70

.96

31

.03

61

.22

11

.40

41

.58

51

.79

92

.02

52

.28

62

.58

12

.91

13

.26

03

.65

14

.01

54

.43

04

.87

1

t1

00

00

.18

00

.24

60

.28

60

.31

60

.35

60

.39

40

.43

80

.48

70

.53

70

.58

50

.63

70

.68

50

.74

60

.80

50

.86

10

.93

21

.00

11

.07

71

.26

81

.45

51

.64

41

.86

42

.10

42

.37

12

.67

43

.01

53

.38

43

.77

74

.14

84

.56

65

.01

3

h1

20

00

.21

10

.28

50

.33

40

.37

20

.42

10

.46

70

.51

50

.57

50

.63

50

.69

40

.75

30

.81

10

.88

20

.95

01

.02

11

.10

11

.18

11

.27

31

.49

81

.72

01

.94

02

.19

62

.47

42

.78

23

.13

13

.51

43

.92

54

.35

74

.75

45

.18

05

.60

7

e1

40

00

.24

40

.32

90

.38

50

.42

40

.48

10

.53

60

.59

20

.65

90

.73

00

.79

60

.86

40

.93

41

.01

21

.09

41

.17

21

.26

41

.35

51

.46

21

.72

11

.97

12

.22

52

.51

82

.82

53

.17

03

.56

03

.98

14

.42

04

.86

15

.25

75

.65

26

.01

0

14

40

0.2

50

0.3

37

0.3

95

0.4

35

0.4

95

0.5

51

0.6

07

0.6

77

0.7

45

0.8

18

0.8

88

0.9

55

1.0

40

1.1

22

1.2

03

1.3

00

1.3

94

1.5

01

1.7

64

2.0

27

2.2

81

2.5

81

2.8

96

3.2

50

3.6

44

4.0

67

4.5

11

4.9

54

5.3

46

5.7

32

6.0

65

s1

60

00

.27

30

.36

60

.43

10

.48

00

.54

10

.60

40

.66

60

.74

30

.82

30

.90

00

.97

71

.05

11

.14

41

.23

51

.32

31

.42

81

.53

01

.65

01

.94

02

.22

42

.50

02

.82

43

.16

53

.54

13

.95

54

.39

64

.85

15

.28

55

.64

75

.97

56

.18

9

m1

80

00

.30

00

.40

70

.47

70

.53

00

.60

00

.67

10

.74

20

.82

60

.91

41

.00

01

.08

51

.17

01

.27

11

.37

51

.47

01

.58

71

.70

01

.83

12

.15

12

.46

12

.76

53

.11

53

.48

43

.88

44

.31

64

.76

95

.21

05

.61

15

.90

76

.11

1

a2

00

00

.32

90

.44

70

.52

50

.58

20

.66

00

.73

70

.81

40

.90

71

.00

41

.09

81

.19

11

.28

51

.39

41

.50

61

.61

31

.74

21

.86

52

.00

82

.35

62

.69

03

.02

03

.39

63

.78

14

.19

94

.64

35

.08

25

.49

75

.83

06

.02

3

l2

20

00

.35

40

.48

40

.56

80

.63

10

.71

40

.80

20

.88

50

.98

81

.09

21

.19

41

.29

61

.39

51

.51

81

.63

51

.75

41

.89

22

.02

42

.18

12

.55

52

.91

43

.26

13

.65

64

.05

74

.48

14

.92

25

.34

15

.70

25

.93

6

l2

40

00

.38

10

.52

00

.61

10

.68

10

.77

40

.86

40

.95

41

.06

31

.17

81

.28

61

.39

61

.50

61

.63

71

.76

51

.89

22

.03

82

.18

42

.34

72

.74

53

.12

43

.48

93

.90

14

.31

14

.73

45

.15

85

.53

25

.81

1

26

00

0.4

05

0.5

53

0.6

54

0.7

28

0.8

24

0.9

25

1.0

21

1.1

40

1.2

62

1.3

81

1.4

97

1.6

14

1.7

52

1.8

90

2.0

24

2.1

80

2.3

34

2.5

07

2.9

24

3.3

25

3.7

04

4.1

25

4.5

35

4.9

50

5.3

44

5.6

60

5.8

25

p2

80

00

.43

10

.59

00

.69

50

.77

60

.88

10

.98

41

.08

81

.21

61

.34

51

.47

01

.59

41

.71

81

.86

42

.01

22

.15

52

.32

02

.48

12

.66

53

.10

13

.51

73

.90

24

.32

64

.73

45

.13

15

.47

75

.71

1

u2

88

00

.44

00

.60

50

.71

10

.79

50

.90

11

.00

71

.11

51

.24

51

.37

71

.50

51

.63

41

.76

11

.91

12

.05

82

.20

62

.37

52

.53

62

.72

43

.17

13

.59

03

.97

84

.40

44

.80

55

.19

15

.51

55

.71

0

l3

00

00

.45

40

.62

50

.73

80

.82

20

.93

41

.04

31

.15

41

.28

71

.42

51

.55

81

.69

11

.82

21

.97

72

.13

02

.28

02

.45

12

.62

42

.81

43

.27

03

.69

04

.08

74

.51

14

.90

65

.28

75

.55

5

l3

20

00

.47

70

.65

50

.77

70

.86

70

.98

51

.10

11

.21

71

.35

91

.50

41

.64

51

.78

41

.92

12

.08

42

.24

42

.40

22

.58

12

.75

82

.95

33

.42

53

.86

24

.25

64

.67

05

.04

55

.36

45

.57

2

e3

40

00

.50

00

.69

00

.81

70

.91

01

.03

41

.15

81

.28

01

.43

01

.58

11

.72

81

.87

22

.01

72

.18

72

.35

42

.51

82

.70

52

.89

13

.09

43

.57

54

.01

54

.40

64

.80

85

.15

15

.41

5

y3

60

00

.52

20

.72

40

.85

50

.95

41

.08

41

.21

41

.34

01

.49

71

.65

51

.81

01

.96

02

.11

22

.28

82

.46

22

.63

22

.82

53

.01

43

.22

43

.71

14

.15

04

.53

74

.91

75

.22

25

.41

7

38

00

0.5

43

0.7

54

0.8

91

0.9

95

1.1

31

1.2

66

1.4

00

1.5

66

1.7

28

1.8

90

2.0

45

2.2

02

2.2

85

2.5

65

2.7

41

2.9

41

3.1

34

3.3

47

3.8

41

4.2

79

4.6

51

5.0

03

5.2

56

r4

00

00

.56

40

.78

40

.92

91

.03

51

.17

81

.32

01

.45

51

.62

91

.80

01

.96

62

.13

02

.29

12

.48

02

.66

02

.84

43

.04

83

.24

43

.46

63

.95

64

.38

74

.74

35

.05

65

.25

5

p4

20

00

.58

40

.81

20

.96

21

.07

51

.22

41

.37

01

.51

51

.69

11

.86

62

.04

12

.21

02

.37

62

.57

02

.75

62

.94

23

.15

03

.35

03

.56

74

.06

44

.48

14

.81

35

.08

65

.21

1

m4

40

00

.60

20

.84

20

.99

51

.11

61

.26

61

.42

11

.57

11

.75

41

.93

62

.11

22

.28

62

.45

62

.65

52

.84

53

.03

63

.24

53

.44

83

.66

64

.15

74

.56

04

.86

25

.08

3

45

00

0.6

12

0.8

54

1.0

16

1.1

35

1.2

92

1.4

45

1.5

98

1.7

84

1.9

66

2.1

47

2.3

25

2.4

97

2.6

97

2.8

93

3.0

82

3.2

94

3.4

95

3.7

14

4.2

01

4.5

91

4.8

77

5.0

66

46

00

0.6

22

0.8

70

1.0

31

1.1

54

1.3

11

1.4

68

1.6

23

1.8

11

2.0

00

2.1

83

2.3

61

2.5

35

2.7

37

2.9

33

3.1

24

3.3

35

3.5

40

3.7

58

4.2

40

4.6

21

4.8

88

5.0

46

48

00

0.6

40

0.8

97

1.0

63

1.1

90

1.3

52

1.5

16

1.6

77

1.8

70

2.0

64

2.2

50

2.4

31

2.6

10

2.8

17

3.0

15

3.2

07

3.4

22

3.6

24

3.8

41

4.3

08

4.6

62

4.8

91

50

00

0.6

57

0.9

22

1.0

98

1.2

25

1.3

95

1.5

62

1.7

24

1.9

22

2.1

21

2.3

14

2.5

00

2.6

80

2.8

91

3.0

92

3.2

84

3.4

96

3.7

00

3.9

14

4.3

64

4.6

84

4.8

67

52

00

0.6

75

0.9

47

1.1

27

1.2

60

1.4

34

1.6

05

1.7

74

1.9

77

2.1

80

2.3

75

2.5

64

2.7

48

2.9

60

3.1

62

3.3

55

3.5

71

3.7

66

3.9

75

4.4

07

4.6

91

4.8

18

54

00

0.6

91

0.9

71

1.1

57

1.2

93

1.4

72

1.6

47

1.8

20

2.0

29

2.2

35

2.4

32

2.6

24

2.8

11

3.0

25

3.2

28

3.4

21

3.6

33

3.8

28

4.0

31

4.4

35

4.6

75

55

00

0.6

97

0.9

87

1.1

71

1.3

10

1.4

91

1.6

66

1.8

44

2.0

53

2.2

61

2.4

61

2.6

55

2.8

41

3.0

54

3.2

60

3.4

51

3.6

61

3.8

54

4.0

54

4.4

44

4.6

64

56

00

0.7

05

0.9

96

1.1

86

1.3

25

1.5

08

1.6

87

1.8

61

2.0

77

2.2

87

2.4

88

2.6

82

2.8

71

3.0

84

3.2

91

3.4

81

3.6

90

3.8

80

4.0

75

4.4

47

4.6

41

58

00

0.7

20

1.0

17

1.2

12

1.3

54

1.5

44

1.7

27

1.9

04

2.1

23

2.3

37

2.5

42

2.7

37

2.9

25

3.1

41

3.3

43

3.5

35

3.7

37

3.9

24

4.1

08

4.4

47

4.5

85

60

00

0.7

35

1.0

40

1.2

38

1.3

85

1.5

78

1.7

65

1.9

45

2.1

67

2.3

84

2.5

90

2.7

87

2.9

75

3.1

92

3.3

92

3.5

80

3.7

78

3.9

54

4.1

31

4.4

28

62

00

0.7

46

1.0

60

1.2

64

1.4

14

1.6

10

1.8

00

1.9

85

2.2

11

2.4

25

2.6

34

2.8

34

3.0

24

3.2

37

3.4

36

3.6

20

3.8

12

3.9

81

4.1

42

4.3

95

64

00

0.7

60

1.0

80

1.2

87

1.4

41

1.6

40

1.8

34

2.0

21

2.2

48

2.4

70

2.6

78

2.8

76

3.0

65

3.2

78

3.4

72

3.6

52

3.8

37

3.9

91

4.1

42

4.3

44

66

00

0.7

70

1.1

00

1.3

11

1.4

65

1.6

68

1.8

64

2.0

55

2.2

88

2.5

08

2.7

18

2.9

17

3.1

04

3.3

14

3.5

03

3.6

73

3.8

52

4.0

01

4.1

32

68

00

0.7

84

1.1

17

1.3

33

1.4

90

1.6

95

1.8

95

2.0

90

2.3

21

2.5

44

2.7

54

2.9

52

3.1

37

3.3

44

3.5

28

3.6

94

3.8

61

3.9

94

4.1

06

70

00

0.7

91

1.1

34

1.3

52

1.5

15

1.7

21

1.9

24

2.1

20

2.3

53

2.5

74

2.7

85

2.9

81

3.1

66

3.3

65

3.5

46

3.7

05

3.8

57

3.9

75

4.0

72

72

00

0.8

02

1.1

48

1.3

72

1.5

36

1.7

45

1.9

51

2.1

46

2.3

81

2.6

05

2.8

15

3.0

10

3.1

90

3.3

85

3.5

57

3.7

05

3.8

45

3.9

51

4.0

21

74

00

0.8

10

1.1

63

1.3

90

1.5

55

1.7

70

1.9

74

2.1

75

2.4

06

2.6

31

2.8

38

3.0

31

3.2

08

3.3

96

3.5

61

3.7

01

3.8

25

3.9

11

3.9

61

76

00

0.8

19

1.1

77

1.4

07

1.5

74

1.7

90

1.9

97

2.1

94

2.4

30

2.6

52

2.8

60

3.0

48

3.2

21

3.4

03

3.5

60

3.6

85

3.7

96

3.8

64

78

00

0.8

26

1.1

90

1.4

22

1.5

91

1.8

08

2.0

17

2.2

17

2.4

52

2.6

74

2.8

77

3.0

64

3.2

28

3.4

03

3.5

50

3.6

64

3.7

55

3.8

04

80

00

0.8

31

1.2

00

1.4

36

1.6

07

1.8

26

2.0

37

2.2

37

2.4

72

2.6

90

2.8

90

3.0

71

3.2

31

3.3

96

3.5

32

3.6

33

3.7

06

82

00

0.8

36

1.2

11

1.4

45

1.6

21

1.8

41

2.0

51

2.2

52

2.4

85

2.7

02

2.8

97

3.0

74

3.2

27

3.3

85

3.5

07

3.5

90

3.6

46

84

00

0.8

41

1.2

20

1.4

60

1.6

31

1.8

54

2.0

65

2.2

62

2.4

97

2.7

10

2.9

02

3.0

72

3.2

20

3.3

65

3.4

75

3.5

44

3.5

74

86

00

0.8

45

1.2

27

1.4

70

1.6

44

1.8

66

2.0

78

2.2

77

2.5

06

2.7

17

2.9

01

3.0

67

3.2

05

3.3

39

3.4

31

3.4

82

88

00

0.8

45

1.2

34

1.4

77

1.6

51

1.8

77

2.0

85

2.2

85

2.5

12

2.7

18

2.8

99

3.0

56

3.1

86

3.3

05

3.3

82

3.4

15

90

00

0.8

50

1.2

38

1.4

85

1.6

61

1.8

84

2.0

91

2.2

91

2.5

15

2.7

17

2.8

91

3.0

38

3.1

56

3.2

64

3.3

25

92

00

0.8

50

1.2

42

1.4

90

1.6

64

1.8

90

2.0

95

2.2

92

2.5

14

2.7

08

2.8

77

3.0

17

3.1

27

3.2

17

3.2

58

94

00

0.8

50

1.2

45

1.4

91

1.6

70

1.8

91

2.1

02

2.2

91

2.5

10

2.6

96

2.8

58

2.9

88

3.0

88

3.1

61

96

00

0.8

47

1.2

46

1.4

95

1.6

71

1.8

94

2.1

02

2.2

90

2.5

03

2.6

85

2.8

35

2.9

56

3.0

42

3.9

87

106


LENGTH FACTOR

upto 1000 0.90

1000 - 1400 0.95

1400 - 2000 1.00

2000 - 2300 1.05

2300 - 2500 1.10

above 2500 1.15

ARC OF CORRECTION

CONTACT ON FACTOR

SMALL PULLEY

100 0.72

110 0.76

120 0.80

130 0.84

140 0.88

150 0.91

160 0.94

170 0.97

180 1.00

190 1.02

200 1.05

210 1.07

220 1.09

230 1.11

Table 38


Table 39


107

SPEED 1.00 to 1.04 to 1.09 to 1.16 to 1.25 to 1.49 to 2.01 to above

RATIO 1.03 1.08 1.15 1.24 1.48 2.00 2.75 2.76

100 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.01

200 0.00 0.00 0.01 0.01 0.01 0.01 0.01 0.02

300 0.00 0.00 0.01 0.01 0.02 0.02 0.02 0.02

400 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.03

500 0.00 0.01 0.01 0.02 0.03 0.03 0.04 0.04

560 0.00 0.01 0.02 0.02 0.03 0.04 0.04 0.05

600 0.00 0.01 0.02 0.02 0.03 0.04 0.04 0.05

700 0.00 0.01 0.02 0.03 0.04 0.04 0.05 0.06

720 0.00 0.01 0.02 0.03 0.04 0.05 0.05 0.06

800 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.06

900 0.00 0.01 0.02 0.04 0.05 0.06 0.06 0.07

960 0.00 0.01 0.03 0.04 0.05 0.06 0.07 0.08

1000 0.00 0.01 0.03 0.04 0.05 0.06 0.07 0.08

1200 0.00 0.02 0.03 0.05 0.06 0.08 0.09 0.10

1400 0.00 0.02 0.04 0.06 0.08 0.09 0.10 0.11

1440 0.00 0.02 0.04 0.06 0.08 0.09 0.10 0.12

1600 0.00 0.02 0.04 0.06 0.09 0.10 0.11 0.13

1800 0.00 0.02 0.05 0.07 0.10 0.12 0.13 0.15

2000 0.00 0.03 0.05 0.08 0.11 0.13 0.14 0.16

2200 0.00 0.03 0.06 0.09 0.12 0.14 0.16 0.18

2400 0.00 0.03 0.06 0.10 0.13 0.15 0.17 0.19

2600 0.00 0.04 0.07 0.11 0.14 0.17 0.18 0.21

2800 0.00 0.04 0.08 0.11 0.15 0.18 0.20 0.23

2880 0.00 0.04 0.08 0.12 0.16 0.18 0.20 0.23

3000 0.00 0.04 0.08 0.12 0.16 0.19 0.21 0.24

3200 0.00 0.04 0.09 0.13 0.17 0.21 0.23 0.26

3400 0.00 0.05 0.09 0.14 0.18 0.22 0.24 0.28

3600 0.00 0.05 0.10 0.15 0.19 0.23 0.26 0.29

3800 0.00 0.05 0.10 0.15 0.21 0.24 0.27 0.31

4000 0.00 0.05 0.11 0.16 0.22 0.26 0.28 0.32

4200 0.00 0.06 0.11 0.17 0.23 0.27 0.30 0.34

4400 0.00 0.06 0.12 0.18 0.24 0.28 0.31 0.36

4500 0.00 0.06 0.12 0.18 0.24 0.29 0.32 0.36

4600 0.00 0.06 0.12 0.19 0.25 0.29 0.33 0.37

4800 0.00 0.06 0.13 0.19 0.26 0.31 0.34 0.39

5000 0.00 0.07 0.14 0.20 0.27 0.32 0.35 0.41

5200 0.00 0.07 0.14 0.21 0.28 0.33 0.37 0.42

5400 0.00 0.07 0.15 0.22 0.29 0.35 0.38 0.44

5500 0.00 0.07 0.15 0.22 0.30 0.35 0.39 0.45

5600 0.00 0.08 0.15 0.23 0.30 0.36 0.40 0.45

5800 0.00 0.08 0.16 0.23 0.31 0.37 0.41 0.47

6000 0.00 0.08 0.16 0.24 0.32 0.38 0.43 0.49

6200 0.00 0.08 0.17 0.25 0.33 0.40 0.44 0.50

6400 0.00 0.09 0.17 0.26 0.35 0.41 0.45 0.52

6600 0.00 0.09 0.18 0.27 0.36 0.42 0.47 0.53

6800 0.00 0.09 0.18 0.28 0.37 0.44 0.48 0.55

7000 0.00 0.09 0.19 0.28 0.38 0.45 0.50 0.57

7200 0.00 0.10 0.19 0.29 0.39 0.46 0.51 0.58

7400 0.00 0.10 0.20 0.30 0.40 0.47 0.52 0.60

7600 0.00 0.10 0.21 0.31 0.41 0.49 0.54 0.62

7800 0.00 0.11 0.21 0.32 0.42 0.50 0.55 0.63

8000 0.00 0.11 0.22 0.32 0.43 0.51 0.57 0.65

8200 0.00 0.11 0.22 0.33 0.44 0.53 0.58 0.66

8400 0.00 0.11 0.23 0.34 0.45 0.54 0.60 0.68

8600 0.00 0.12 0.23 0.35 0.46 0.55 0.61 0.70

8800 0.00 0.12 0.24 0.36 0.48 0.56 0.62 0.71

9000 0.00 0.12 0.24 0.36 0.49 0.58 0.64 0.73

9200 0.00 0.12 0.25 0.37 0.50 0.59 0.65 0.75

9400 0.00 0.13 0.25 0.38 0.51 0.60 0.67 0.76

9600 0.00 0.13 0.26 0.39 0.52 0.62 0.68 0.78

9800 0.00 0.13 0.26 0.40 0.53 0.63 0.69 0.79

10000 0.00 0.14 0.27 0.41 0.54 0.64 0.71 0.81

Table 37 SECTION PKSPEED RATIO CORRECTION FACTOR

108

Tab

le 4

0 S

ect

ion P

L

Bas

ic p

ow

er

rati

ng p

er

rib

(kw

) fo

r sm

all p

ulle

y eff

ect

ive d

iam

ete

r (m

m)

de

75

80

85

90

95

100

106

112

118

125

132

140

150

160

170

180

190

200

212

224

236

250

280

315

355

400

450

500

560

630

800

10

00

.07

90

.08

80

.09

70

.10

20

.11

20

.12

30

.13

40

.14

40

.15

40

.16

70

.17

90

.19

40

.21

10

.22

70

.24

40

.26

10

.27

90

.29

40

.31

60

.33

50

.35

60

.38

00

.43

00

.48

80

.55

40

.62

70

.70

80

.78

80

.88

60

.99

71

.26

52

00

0.1

49

0.1

69

0.1

84

0.2

00

0.2

18

0.2

33

0.2

56

0.2

75

0.2

97

0.3

20

0.3

42

0.3

70

0.4

03

0.4

35

0.4

70

0.5

02

0.5

35

0.5

68

0.6

07

0.6

42

0.6

84

0.7

29

0.8

25

0.9

37

1.0

61

1.2

05

1.3

61

1.5

16

1.6

95

1.9

11

2.4

20

s3

00

0.1

19

0.2

42

0.2

68

0.2

91

0.3

19

0.3

44

0.3

72

0.4

01

0.4

32

0.4

66

0.5

01

0.5

41

0.5

88

0.6

48

0.6

85

0.7

34

0.7

81

0.8

30

0.8

85

0.9

41

1.0

01

1.0

65

1.2

00

1.3

71

1.5

53

1.7

61

1.9

87

2.2

12

2.4

74

2.7

84

3.5

09

p4

00

0.2

84

0.3

16

0.3

50

0.3

78

0.4

12

0.4

43

0.4

88

0.5

26

0.5

66

0.6

10

0.6

52

0.7

06

0.7

69

0.8

35

0.8

95

0.9

60

1.0

20

1.0

85

1.1

60

1.2

35

1.3

10

1.3

96

1.5

79

1.7

90

2.0

31

2.3

00

2.5

91

2.8

80

3.2

21

3.6

12

4.5

29

e5

00

0.3

49

0.3

86

0.4

27

0.4

71

0.5

10

0.5

50

0.6

00

0.6

46

0.6

92

0.7

50

0.8

03

0.8

70

0.9

44

1.0

25

1.1

03

1.1

81

1.2

59

1.3

36

1.4

27

1.5

19

1.6

11

1.7

16

1.9

41

2.2

01

2.4

96

2.8

21

3.1

76

3.5

25

3.9

36

4.4

02

5.4

75

e5

60

0.3

85

0.4

28

0.4

72

0.5

20

0.5

63

0.6

07

0.6

62

0.7

19

0.7

70

0.8

31

0.8

92

0.9

62

1.0

52

1.1

39

1.2

23

1.3

11

1.3

90

1.4

81

1.5

86

1.6

86

1.7

88

1.9

04

2.1

56

2.4

42

2.7

50

3.1

25

3.5

15

3.9

01

4.3

49

4.8

54

6.0

00

d6

00

0.4

09

0.4

55

0.5

02

0.5

51

0.6

01

0.6

51

0.7

08

0.7

62

0.8

21

0.8

89

0.9

52

1.0

02

1.1

19

1.2

14

1.3

07

1.3

80

1.4

88

1.5

80

1.6

87

1.7

80

1.9

06

2.0

30

2.2

96

2.6

01

2.9

46

3.3

24

3.7

41

4.1

46

4.6

14

5.1

42

6.3

32

70

00

.47

20

.52

50

.57

80

.63

80

.69

20

.74

60

.81

30

.88

10

.94

61

.02

01

.10

01

.18

41

.29

11

.40

01

.50

71

.61

01

.71

51

.82

01

.94

52

.07

12

.19

62

.33

72

.64

12

.99

03

.38

43

.81

44

.28

14

.73

45

.25

25

.83

67

.09

4o

72

00

.48

20

.53

60

.55

80

.65

20

.71

00

.76

70

.83

30

.90

30

.97

11

.05

01

.12

81

.21

61

.32

51

.43

51

.54

41

.65

11

.76

11

.86

91

.99

82

.12

92

.25

02

.40

02

.71

13

.06

93

.47

03

.91

04

.38

54

.84

55

.37

95

.96

37

.23

2f

80

00

.49

90

.58

80

.65

80

.72

00

.78

20

.84

10

.92

00

.99

31

.07

01

.15

61

.24

11

.34

01

.46

01

.58

11

.70

31

.82

01

.93

72

.05

82

.20

02

.34

02

.47

92

.63

82

.98

13

.37

03

.81

04

.28

64

.80

05

.29

15

.85

16

.46

97

.74

49

00

0.5

89

0.6

57

0.7

30

0.8

01

0.8

73

0.9

40

1.0

25

1.0

90

1.1

91

1.2

86

1.3

80

1.4

91

1.6

23

1.7

62

1.8

95

2.0

00

2.1

57

2.2

91

2.4

45

2.6

01

2.7

55

2.9

32

3.3

10

3.7

41

4.2

18

4.7

38

5.2

88

5.8

12

6.4

05

7.0

32

8.2

70

t9

60

0.6

25

0.6

90

0.7

73

0.8

48

0.9

26

1.0

00

1.0

83

1.1

73

1.2

60

1.3

63

1.4

63

1.5

81

1.7

22

1.8

66

2.0

09

2.1

49

2.2

88

2.4

27

2.5

94

2.7

20

2.9

21

3.1

10

3.5

02

3.9

55

4.4

58

5.0

00

5.5

71

6.1

11

6.7

11

7.3

42

8.5

19

h1

00

00

.64

90

.72

20

.80

10

.88

20

.95

81

.03

21

.12

81

.22

01

.31

11

.41

51

.52

21

.64

01

.79

01

.93

72

.08

52

.22

92

.37

42

.51

82

.69

12

.86

03

.02

73

.22

13

.63

14

.08

84

.61

45

.16

75

.75

26

.30

36

.89

07

.53

48

.65

4e

12

00

0.7

60

0.8

53

0.9

42

1.0

40

1.1

28

1.2

20

1.3

27

1.4

10

1.5

44

1.6

70

1.7

91

1.9

33

2.1

11

2.2

85

2.4

57

2.6

21

2.7

95

2.9

61

3.1

61

3.3

60

3.5

52

3.7

79

4.2

49

4.7

50

5.3

52

5.9

61

6.5

50

7.1

51

7.7

42

8.2

94

14

00

0.8

70

0.9

74

1.0

82

1.1

89

1.2

95

1.4

01

1.5

21

1.6

50

1.7

75

1.9

13

2.0

59

2.2

20

2.4

19

2.6

17

2.8

12

3.0

00

3.2

00

3.3

87

3.6

14

3.8

35

4.0

52

4.3

06

4.8

24

5.4

01

6.0

21

6.6

20

7.2

81

7.8

12

8.3

17

8.7

00

s1

44

00

.89

21

.00

01

.11

21

.21

81

.32

71

.43

21

.56

31

.69

11

.82

01

.96

52

.10

92

.27

52

.47

92

.68

52

.88

23

.08

13

.27

93

.47

13

.70

13

.92

94

.15

14

.40

34

.93

75

.52

16

.14

26

.78

17

.40

37

.92

48

.40

08

.73

0m

16

00

0.9

79

1.0

05

1.2

19

1.3

37

1.4

60

1.5

75

1.7

16

1.8

56

1.9

94

2.1

55

2.3

13

2.4

93

2.7

21

2.9

43

3.1

60

3.3

76

3.5

87

3.7

80

4.0

46

4.2

87

4.4

90

4.8

00

5.3

60

5.9

70

6.6

08

7.2

37

7.8

20

8.2

66

8.5

88

a1

80

01

.08

51

.21

91

.35

01

.48

21

.61

61

.74

81

.90

22

.05

92

.21

12

.39

02

.56

42

.76

43

.01

13

.25

53

.49

13

.71

03

.95

94

.18

64

.45

14

.71

24

.96

85

.25

75

.84

76

.47

27

.10

47

.69

18

.18

18

.47

7l

20

00

1.1

20

1.3

28

1.4

82

1.6

23

1.7

71

1.9

13

2.0

86

2.2

52

2.4

21

2.6

15

2.8

09

3.0

25

3.2

92

3.5

54

3.8

10

4.0

62

4.3

10

4.5

51

4.8

38

5.1

11

5.3

79

5.6

79

6.2

81

6.9

03

7.5

00

8.0

02

8.3

46

l2

20

01

.28

91

.44

61

.60

41

.76

21

.92

22

.07

82

.26

12

.44

62

.61

92

.83

63

.04

13

.27

63

.56

23

.84

14

.11

24

.38

14

.64

24

.90

05

.19

65

.47

85

.75

56

.05

96

.66

07

.25

67

.78

58

.16

72

40

01

.38

51

.55

71

.72

81

.80

82

.06

52

.23

62

.43

32

.63

02

.82

43

.01

03

.26

83

.51

63

.82

04

.11

54

.40

04

.68

24

.95

55

.21

75

.52

25

.81

46

.09

06

.39

66

.97

87

.52

27

.95

1p

26

00

1.4

78

1.6

63

1.8

49

2.0

27

2.2

11

2.3

90

2.6

00

2.8

10

3.0

14

3.2

51

3.4

84

3.7

46

4.0

62

4.3

75

4.6

72

4.9

66

5.2

45

5.5

12

5.8

20

6.1

11

6.3

87

6.6

82

7.2

30

7.7

00

7.9

91

u2

80

01

.57

01

.76

71

.96

32

.15

72

.35

02

.53

92

.76

12

.95

33

.20

03

.44

83

.69

23

.96

64

.29

54

.61

94

.89

05

.22

55

.51

05

.77

96

.08

96

.37

66

.63

76

.92

17

.41

17

.77

5l

28

80

1.6

08

1.8

05

2.0

10

2.2

05

2.4

02

2.5

95

2.8

26

3.0

50

3.2

70

3.5

22

3.7

71

4.0

51

4.3

87

4.7

13

5.0

21

5.3

21

5.5

90

5.8

78

6.1

85

6.4

67

6.7

29

7.0

00

7.4

64

7.7

77

l3

00

01

.66

31

.86

92

.07

72

.28

22

.48

42

.68

12

.88

03

.15

03

.37

63

.63

33

.89

04

.17

64

.51

54

.84

75

.16

05

.46

15

.74

96

.01

66

.31

96

.59

76

.84

67

.10

17

.51

97

.74

7e

32

00

1.7

47

1.9

68

2.1

85

2.4

01

2.6

13

2.8

20

3.0

60

3.3

10

3.5

45

3.8

14

4.0

80

4.3

70

4.7

22

5.0

59

5.3

76

5.6

78

5.9

61

6.2

21

6.5

16

6.7

72

7.0

02

7.2

28

7.5

45

y3

40

01

.83

52

.06

22

.29

32

.51

52

.71

02

.95

23

.21

03

.46

03

.70

33

.98

24

.25

64

.55

64

.91

35

.25

25

.57

15

.86

86

.14

56

.39

86

.67

16

.90

07

.10

87

.28

97

.48

43

60

01

.91

82

.15

62

.39

22

.62

52

.81

03

.08

33

.34

93

.60

03

.86

04

.14

64

.42

24

.72

65

.08

95

.42

85

.74

26

.03

26

.30

06

.53

86

.78

86

.99

67

.15

77

.28

8r

38

00

1.9

94

2.2

00

2.4

90

2.7

33

2.9

72

3.2

00

3.4

78

3.7

43

4.0

06

4.2

92

4.5

75

4.8

84

5.2

46

5.5

83

5.8

91

6.1

71

6.4

21

6.6

41

6.8

61

7.0

31

7.1

51

7.2

17

p4

00

02

.06

82

.32

92

.58

62

.83

43

.08

13

.32

13

.60

23

.87

44

.14

04

.43

64

.72

15

.02

85

.38

95

.72

06

.02

06

.28

16

.51

16

.70

86

.89

17

.01

67

.08

1m

42

00

2.1

40

2.4

12

2.6

78

2.9

33

3.1

89

3.4

32

3.7

19

4.0

00

4.2

65

4.5

63

4.8

50

5.1

58

5.5

13

5.8

33

6.1

90

6.3

61

6.5

68

6.7

32

6.8

72

6.9

45

44

00

2.2

10

2.4

90

2.7

62

3.0

26

3.2

60

3.5

38

3.8

31

4.1

09

4.3

80

4.6

84

4.9

65

5.2

72

5.6

17

5.9

23

6.1

90

6.4

11

6.5

90

6.6

80

6.8

06

45

00

2.2

48

2.5

29

2.8

00

3.0

71

3.3

32

3.5

87

3.8

83

4.1

65

4.4

10

4.7

39

5.0

21

5.3

21

5.6

64

5.9

64

6.2

19

6.4

22

6.5

85

6.6

94

6.7

53

46

00

2.2

80

2.5

65

2.8

42

3.1

18

3.3

80

3.6

38

3.9

35

4.2

10

4.4

90

4.7

89

5.0

70

5.3

70

5.7

04

5.9

95

6.2

33

6.4

29

6.5

71

6.6

59

48

00

2.2

90

2.6

38

2.9

22

3.2

01

3.4

71

3.7

30

4.0

30

4.3

15

4.5

86

4.8

82

5.1

59

5.4

50

5.7

69

6.0

38

6.2

52

6.4

14

6.5

16

50

00

2.4

10

2.6

88

3.0

01

3.2

79

3.5

54

3.8

11

4.1

12

4.4

01

4.6

70

4.9

66

5.2

33

5.5

12

5.8

12

6.0

59

6.2

41

6.3

61

6.4

00

52

00

2.4

62

2.7

70

3.0

63

3.3

51

3.6

28

3.8

91

4.1

95

4.4

79

4.7

46

5.0

32

5.2

94

5.5

60

5.8

38

6.0

51

6.2

00

6.2

74

54

00

2.5

15

2.8

28

3.1

27

3.4

20

3.6

96

3.9

62

4.2

64

4.5

46

4.8

10

5.0

90

5.3

41

5.5

88

5.8

41

6.0

19

6.1

22

55

00

2.5

42

2.8

55

3.1

59

3.4

48

3.7

29

3.9

93

4.2

94

4.5

77

4.8

35

5.1

10

5.3

56

5.5

95

5.8

32

5.9

92

6.0

73

56

00

2.5

68

2.9

01

3.1

87

3.4

79

3.7

60

4.0

22

4.3

25

4.6

02

4.8

60

5.1

30

5.3

68

5.5

90

5.8

17

5.9

59

6.0

16

58

00

2.6

17

2.9

30

3.2

40

3.5

36

3.8

12

4.0

78

4.3

75

4.6

51

4.9

01

5.1

58

5.3

81

5.5

85

5.7

71

5.8

70

60

00

2.6

58

2.9

82

3.2

88

3.5

82

3.8

62

4.1

26

4.4

20

4.6

86

4.9

25

5.1

69

5.3

74

5.5

54

5.7

02

62

00

2.6

90

3.0

20

3.3

32

3.6

27

3.9

02

4.1

63

4.4

51

4.7

10

4.9

38

5.1

65

5.3

49

5.5

04

5.6

02

64

00

2.7

35

3.0

58

3.3

71

3.6

63

9.9

41

4.1

96

4.4

74

4.7

21

4.9

37

5.1

48

5.2

90

5.4

30

66

00

2.7

60

3.0

88

3.4

00

3.6

67

3.9

70

4.2

19

4.4

88

4.7

23

4.9

22

5.1

11

5.2

45

5.3

31

68

00

2.7

88

3.1

20

3.4

30

3.7

21

3.9

88

4.2

28

4.4

90

4.7

11

4.8

94

5.0

61

5.1

63

5.2

14

70

00

2.8

05

3.1

39

3.4

51

3.7

37

4.0

00

4.2

33

4.4

81

4.6

89

4.8

52

4.9

91

5.0

67

72

00

2.8

25

3.1

62

3.4

67

3.7

48

4.0

02

4.2

29

4.4

61

4.6

50

4.7

96

4.9

05

4.9

42

74

00

2.8

48

3.1

74

3.4

73

3.7

50

3.9

92

4.2

11

4.4

30

4.6

02

4.7

24

4.8

01

76

00

2.8

58

3.1

80

3.4

80

3.7

42

3.9

81

4.1

86

4.3

88

4.5

40

4.6

34

4.6

78

78

00

2.5

62

3.1

84

3.4

70

3.7

31

3.9

58

4.1

52

4.3

32

4.4

61

4.5

30

80

00

2.8

60

3.1

77

3.4

61

3.7

14

3.9

29

4.1

02

4.2

66

4.3

69

4.4

09

82

00

2.5

56

3.1

66

3.4

42

3.6

80

3.8

20

4.0

47

4.1

88

4.2

61

84

00

2.8

46

3.1

51

3.4

21

3.6

47

3.8

34

3.9

82

4.0

95

4.1

40

86

00

2.8

32

3.1

29

3.3

87

3.6

00

3.7

75

3.9

01

3.9

90

88

00

2.8

09

3.1

00

3.3

49

3.5

51

3.7

05

3.8

11

3.8

71

90

00

2.7

86

3.0

65

3.3

01

3.4

88

3.6

24

3.7

10

3.7

38

92

00

2.7

55

3.0

28

3.2

45

3.4

18

3.5

37

3.5

80

94

00

2.7

20

2.9

81

3.1

88

3.3

38

3.4

32

3.4

71

96

00

2.6

80

2.9

27

3.1

17

3.2

50

3.3

24

98

00

2.5

32

2.8

67

3.0

39

3.1

51

3.2

01

10

00

02

.58

12

.80

12

.95

33

.04

43

.06

9


LENGTH FACTOR

Up to 1300 0.90

1300 - 1750 0.95

1750 - 2500 1.00

2500 - 3750 1.05

3750 - 4500 1.10

4500 - 5250 1.15

above 5250 1.20

ARC OF CORRECTION

CONTACT ON FACTOR

SMALL PULLEY

100 0.72

110 0.76

120 0.80

130 0.84

140 0.88

150 0.91

160 0.94

170 0.97

180 1.00

190 1.02

200 1.05

210 1.07

220 1.09

230 1.11

Table 42


Table 43



100 0.000 0.000 0.000 0.000 0.010 0.010 0.010 0.010

200 0.000 0.000 0.010 0.010 0.010 0.010 0.020 0.020

300 0.000 0.000 0.010 0.010 0.020 0.020 0.020 0.030

400 0.000 0.010 0.010 0.020 0.020 0.030 0.030 0.040

500 0.000 0.010 0.010 0.020 0.030 0.030 0.040 0.050

560 0.000 0.010 0.020 0.020 0.030 0.040 0.050 0.050

600 0.000 0.010 0.020 0.020 0.030 0.040 0.050 0.060

700 0.000 0.010 0.020 0.030 0.040 0.050 0.060 0.070

720 0.000 0.010 0.020 0.030 0.040 0.050 0.060 0.070

800 0.000 0.010 0.020 0.030 0.040 0.050 0.060 0.080

900 0.000 0.010 0.020 0.040 0.050 0.060 0.070 0.090

960 0.000 0.010 0.030 0.040 0.050 0.060 0.080 0.090

1000 0.000 0.010 0.030 0.040 0.050 0.070 0.080 0.090

1200 0.000 0.020 0.030 0.050 0.060 0.080 0.100 0.110

1400 0.000 0.020 0.040 0.060 0.080 0.090 0.110 0.130

1440 0.000 0.020 0.040 0.060 0.080 0.100 0.120 0.140

1600 0.000 0.020 0.040 0.060 0.090 0.110 0.130 0.150

1800 0.000 0.020 0.050 0.070 0.100 0.120 0.150 0.170

2000 0.000 0.030 0.050 0.080 0.110 0.140 0.160 0.190

2200 0.000 0.030 0.060 0.090 0.120 0.150 0.180 0.210

2400 0.000 0.030 0.060 0.100 0.130 0.160 0.190 0.230

2600 0.000 0.040 0.070 0.110 0.140 0.180 0.210 0.250

2800 0.000 0.040 0.080 0.110 0.150 0.190 0.230 0.260

2880 0.000 0.040 0.080 0.120 0.160 0.190 0.230 0.270

3000 0.000 0.040 0.080 0.120 0.160 0.200 0.240 0.280

3200 0.000 0.040 0.090 0.130 0.170 0.220 0.260 0.300

3400 0.000 0.050 0.090 0.140 0.180 0.230 0.280 0.320

3600 0.000 0.050 0.100 0.150 0.190 0.240 0.290 0.340

3800 0.000 0.050 0.100 0.150 0.210 0.260 0.310 0.360

4000 0.000 0.050 0.110 0.160 0.220 0.270 0.320 0.380

4200 0.000 0.060 0.110 0.170 0.230 0.280 0.340 0.400

4400 0.000 0.060 0.120 0.180 0.240 0.300 0.360 0.420

4500 0.000 0.060 0.120 0.180 0.240 0.300 0.360 0.430

4600 0.000 0.060 0.120 0.190 0.250 0.310 0.370 0.430

4800 0.000 0.060 0.130 0.190 0.260 0.320 0.390 0.450

5000 0.000 0.070 0.140 0.200 0.270 0.340 0.410 0.470

5200 0.000 0.070 0.140 0.210 0.280 0.350 0.420 0.490

5400 0.000 0.070 0.150 0.220 0.290 0.360 0.440 0.510

5500 0.000 0.070 0.150 0.220 0.300 0.370 0.450 0.520

5600 0.000 0.080 0.150 0.230 0.300 0.380 0.450 0.530

5800 0.000 0.080 0.160 0.230 0.310 0.390 0.470 0.550

6000 0.000 0.080 0.160 0.240 0.320 0.410 0.490 0.570

6200 0.000 0.080 0.170 0.250 0.330 0.420 0.500 0.590

6400 0.000 0.090 0.170 0.260 0.350 0.430 0.520 0.600

6600 0.000 0.090 0.180 0.270 0.360 0.450 0.530 0.620

6800 0.000 0.090 0.180 0.280 0.370 0.460 0.550 0.640

7000 0.000 0.090 0.190 0.280 0.380 0.470 0.570 0.660

7200 0.000 0.100 0.190 0.290 0.390 0.490 0.580 0.680

7400 0.000 0.100 0.200 0.300 0.400 0.500 0.600 0.700

7600 0.000 0.100 0.210 0.310 0.410 0.510 0.620 0.720

7800 0.000 0.110 0.210 0.320 0.420 0.530 0.630 0.740

8000 0.000 0.110 0.220 0.320 0.430 0.540 0.650 0.760

8200 0.000 0.110 0.220 0.330 0.440 0.550 0.660 0.770

8400 0.000 0.110 0.230 0.340 0.450 0.570 0.680 0.790

8600 0.000 0.120 0.230 0.350 0.�460 0.580 0.700 0.810

8800 0.000 0.120 0.240 0.360 0.480 0.590 0.710 0.830

9000 0.000 0.120 0.240 0.360 0.490 0.610 0.730 0.850

9200 0.000 0.120 0.250 0.370 0.500 0.620 0.750 0.870

9400 0.000 0.130 0.250 0.380 0.510 0.630 0.760 0.890

9600 0.000 0.130 0.260 0.390 0.520 0.650 0.780 0.910

9800 0.000 0.130 0.260 0.400 0.530 0.660 0.790 0.930

10000 0.000 0.140 0.270 0.410 0.540 0.680 0.810 0.950

S

P

E

E

D

O

F

S

M

A

L

L

E

R

P

U

L

L

E

Y

I

N

R

P

M

109

Table 41 SECTION PLSPEED RATIO CORRECTION FACTOR

Tab

le 4

4 S

ect

ion P

M

Bas

ic p

ow

er

rati

ng p

er

rib

(kw

) fo

r sm

all p

ulle

y eff

ect

ive d

iam

ete

r (m

m)

de

180

190

200

212

224

250

280

315

355

400

450

500

560

630

700

s1

00

0.6

31

0.6

87

0.7

41

0.8

07

0.8

71

1.0

12

1.1

74

1.3

54

1.5

68

1.8

10

2.0

71

2.3

30

2.6

41

3.0

00

3.3

53

p2

00

1.1

87

1.2

93

1.3

97

1.5

24

1.6

48

1.9

20

2.2

28

2.5

74

2.9

81

3.4

45

3.9

45

4.4

41

5.0

32

5.7

11

6.3

81

e3

00

1.7

12

1.8

67

2.0

21

2.2

04

2.3

84

2.7

81

3.2

32

3.7

40

4.3

32

5.0

04

5.7

30

6.4

43

7.2

91

8.2

67

9.2

25

e4

00

2.2

17

2.4

17

2.6

20

2.8

60

3.0

99

3.6

14

4.2

00

4.8

61

5.6

31

6.5

00

7.4

35

8.3

52

9.4

40

10

.67

71

1.8

78

d5

00

2.7

05

2.9

53

3.1

98

3.4

95

3.7

84

4.4

18

5.1

36

5.9

44

6.8

80

7.9

40

9.0

64

10

.17

21

1.4

66

12

.93

01

4.3

40

56

02

.99

03

.26

53

.53

63

.86

54

.19

04

.89

05

.68

56

.57

47

.61

08

.77

41

0.0

10

11

.21

21

2.6

21

14

.19

51

5.7

02

o6

00

3.1

77

3.4

71

3.7

60

4.1

10

4.4

55

5.2

00

6.0

44

6.9

91

8.0

86

9.3

12

10

.62

01

1.8

90

13

.36

31

5.0

06

16

.56

5

f7

00

3.6

37

3.9

73

4.3

08

4.7

08

5.1

04

5.9

55

6.9

24

8.0

01

9.2

42

10

.63

01

2.0

91

13

.50

11

5.1

14

16

.88

51

8.5

30

72

03

.72

74

.07

24

.41

44

.82

65

.23

16

.10

47

.09

68

.20

09

.46

61

0.8

85

12

.37

51

3.8

08

15

.44

41

7.2

36

18

.88

4

t8

00

4.0

84

4.4

64

4.8

40

5.2

90

5.7

35

6.6

90

7.7

72

8.9

71

10

.34

91

1.8

78

13

.47

21

4.9

92

16

.70

51

8.5

49

20

.20

2

h9

00

4.5

19

4.9

37

5.3

54

5.8

55

6.3

44

7.4

00

8.5

90

9.9

05

11

.40

01

3.0

52

14

.75

31

6.3

52

18

.12

61

9.9

69

21

.54

7

e9

60

4.7

74

5.2

16

5.6

60

6.1

85

6.7

05

7.8

15

9.0

68

10

.44

11

2.0

05

13

.72

01

5.4

73

17

.10

51

8.8

82

20

.69

32

2.1

82

10

00

4.9

40

5.4

00

5.8

57

6.4

02

6.9

41

8.0

84

9.3

77

10

.79

51

2.3

96

14

.15

01

5.9

32

17

.57

21

9.3

50

21

.12

02

2.5

31

s1

20

05

.74

86

.28

46

.81

17

.44

38

.06

19

.38

11

0.8

47

12

.44

01

4.2

08

16

.09

01

7.9

33

19

.54

82

1.1

54

22

.51

9

m1

40

06

.50

47

.10

87

.70

48

.41

19

.10

11

0.5

61

12

.17

11

3.8

85

15

.74

41

7.6

45

19

.40

52

0.8

10

a1

44

06

.64

87

.26

47

.87

48

.59

59

.30

21

0.7

82

12

.41

41

4.1

48

16

.01

51

7.9

05

19

.63

22

0.9

66

l1

60

07

.20

77

.87

18

.52

79

.29

91

0.0

52

11

.62

51

3.3

30

15

.10

91

6.9

71

18

.77

12

0.2

76

l1

80

07

.85

08

.57

19

.27

41

0.1

00

10

.90

01

2.5

54

14

.31

01

6.0

87

17

.85

51

9.4

11

20

00

8.4

35

9.1

98

9.9

40

10

.80

81

1.6

41

13

.33

81

5.0

94

16

.79

21

8.3

56

p

22

00

8.9

54

9.7

50

10

.52

11

1.4

15

12

.26

41

3.9

66

15

.66

01

7.2

01

u2

40

09

.40

11

0.2

21

11

.01

11

1.9

12

12

.76

21

4.4

21

15

.99

51

7.2

83

l2

60

09

.77

61

0.6

09

11

.40

11

2.2

92

13

.12

81

4.6

96

16

.07

5

l2

80

01

0.0

71

10

.90

31

1.6

87

12

.55

51

3.3

45

14

.77

2

e2

88

01

0.1

65

10

.99

01

1.7

69

12

.62

21

3.3

91

14

.74

2

y3

00

01

0.2

81

11

.10

11

1.8

55

12

.68

21

3.4

12

14

.64

1

32

00

10

.40

21

1.1

94

11

.91

11

2.6

71

13

.31

4

r3

40

01

0.4

33

11

.18

01

1.8

40

12

.51

11

3.0

44

p3

60

01

0.3

63

11

.05

01

1.6

35

12

.19

2

m3

80

01

0.1

88

10

.79

81

1.2

90

40

00

9.9

05

10

.42

2

110


LENGTH FACTOR

upto 2750 0.95

2750 - 3750 1.00

3750 - 5000 1.05

5000 - 7000 1.10

7000 - 9000 1.15

above 9000 1.20

ARC OF CORRECTION

CONTACT ON FACTOR

SMALL PULLEY

100 0.72

110 0.76

120 0.80

130 0.84

140 0.88

150 0.91

160 0.94

170 0.97

180 1.00

190 1.02

200 1.05

210 1.07

220 1.09

230 1.11

Table 46


Table 47



100 0.00 0.01 0.01 0.02 0.03 0.05 0.06 0.07

200 0.00 0.01 0.02 0.04 0.07 0.09 0.11 0.14

300 0.01 0.02 0.03 0.06 0.10 0.14 0.17 0.20

400 0.01 0.02 0.04 0.08 0.14 0.19 0.23 0.27

500 0.01 0.03 0.05 0.10 0.17 0.24 0.29 0.34

560 0.01 0.03 0.06 0.11 0.19 0.26 0.32 0.38

600 0.01 0.03 0.06 0.12 0.20 0.28 0.34 0.41

700 0.01 0.04 0.08 0.14 0.24 0.33 0.40 0.47

720 0.01 0.04 0.08 0.15 0.24 0.34 0.41 0.49

800 0.02 0.04 0.09 0.16 0.27 0.38 0.46 0.54

900 0.02 0.05 0.10 0.18 0.30 0.43 0.52 0.61

960 0.02 0.05 0.10 0.19 0.32 0.45 0.55 0.65

1000 0.02 0.05 0.11 0.20 0.34 0.47 0.57 0.68

1200 0.02 0.06 0.13 0.24 0.41 0.57 0.69 0.81

1400 0.03 0.08 0.15 0.28 0.47 0.66 0.80 0.95

1440 0.03 0.08 0.16 0.29 0.49 0.68 0.83 0.97

1600 0.03 0.09 0.17 0.32 0.54 0.76 0.92 1.08

1800 0.04 0.10 0.19 0.36 0.61 0.85 1.03 1.22

2000 0.04 0.11 0.22 0.41 0.68 0.95 1.15 1.35

2200 0.04 0.12 0.24 0.45 0.74 1.04 1.26 1.49

2400 0.05 0.13 0.26 0.49 0.81 1.13 1.38 1.62

2600 0.05 0.14 0.28 0.53 0.88 1.23 1.49 1.76

2800 0.06 0.15 0.30 0.57 0.95 1.32 1.61 1.89

2880 0.06 0.16 0.31 0.58 0.97 1.36 1.65 1.94

3000 0.06 0.16 0.32 0.61 1.01 1.42 1.72 2.03

3200 0.06 0.17 0.35 0.65 1.08 1.51 1.84 2.16

3400 0.07 0.18 0.37 0.69 1.15 1.61 1.95 2.30

3600 0.07 0.19 0.39 0.73 1.22 1.70 2.07 2.43

3800 0.08 0.21 0.41 0.77 1.28 1.80 2.18 2.57

4000 0.08 0.22 0.43 0.81 1.35 1.89 2.30 2.70

SPEED

OF

SMALLER PULLEY

IN

RPM

111

Table 45 SECTION PMSPEED RATIO CORRECTION FACTOR

M

T

E for take up

Calculated E

E for fitting

INSTALLATION & MAINTENANCE

1) MAKE SURE THAT THE POWER IS OFF AND MACHINE STOPS

COMPLETELY BEFORE SETTING THE BELT OR DURING MAINTENANCE

.2) DO NOT USE EXCESSIVE FORCE TO SET THE BELT. REDUCE CENTRE

DISTANCE BY USING THE MOTOR SLIDE FOR SMOOTH

SETTING,WHEN USING THE TENSION PULLEY THE BELT SHOULD BE

LOOSENED BEFOREHAND.

3) MAKE SURE THAT OIL DOES NOT STICK TO THE BELT WHILE

SETTING THE BELT.

4) WHEN THE CENTRE DISTANCE IS LONG ,OR WHEN USING J OR PK

TYPE WITH SMALL PITCHES MAKE SURE THAT YOU DO NOT MIS SET

THE BELT BY A RIDGE.

5) TENSION THE DRIVE PROPERLY.

6) WITH MULTI BELT SYSTEM MAKE SURE THAT THE PULLEY GROOVE

DIMENSIONS ARE PERFECT.

7) CHECK IF THE PULLEY GROOVE IS WORN OR DAMAGED IN

OPERATION IF THE PULLEY TIP GETS SMALLER (SHARPENED)

REPLACE THE PULLEY,SINCE IT CAN CAUSE SHORTENED BELT LIFE.

Installation Procedure

The following installation procedure should be strictly adhered to

achieve the satisfactory performance from the ribbed belt drive.

1) Switch off the main supply before beginning with the exercise of

installation.

2) Bring the pulleys closer to each other so that the belt can be

removed easily.

3) Inspect the pulley grooves for any scores , sharp edges, dirt &

rust. Clean them as required.

4) Ensure the alignment of pulleys. Make sure that the shafts are also

properly aligned.

5) Mount the ribbed belt with no tension. Make sure that the ribs

have been properly seated in the grooves.

6) Tension the ribbed belts as per the procedure given below.

7) Give some running time to the drive so that the belts are properly

seated in the grooves.

8) Guard the drive properly.

Tensioning Procedure

It is imperative that to achieve the best from your ribbed belt drive, a proper tension be maintained in the drive. Under or over tensioning can cause the ribbed belt to fail prematurely. The following steps should be worked out to ensure the proper tension in the drive.

1) Fit the belt on the pulleys with no tension.

2) Draw two perpendicular lines across the belt at about 80% of the

belt span between the pulleys as shown in the figure. Say for

example the lines are placed 1000 mm apart. ( A ).

3) Increase the distance between two lines by 0.5 to 0.75% I.e. by 5

to 7.5 mm for an initial spacing of 1000 mm, so that the (A ) now

becomes 1007.5 mm.

4) Run the drive under load for about 10 minutes.

5) Check the tension of the belt ( spacing between two lines ) &

readjust if necessary.

INSTALLATION AND TAKE UP ALLOWANCE

L PJ PK PL PM

(mm) M T M T M T M T

< 750 -10 +10 -11 +13

750 to 1200 -10 +15 -12 +16 -15 +20

1200 to 2000 -15 +20 -16 + 22 -20 +20

2000 to 3500 -20 +30 -23 + 32 -30 +35 -40 +50

3500 to 5000 -40 +50 -50 +70

A

A

112

HOW TO USE THE IDLER PULLEY Be careful when you use the idler pulley since it might cause

misalignment or shorten the belt service life through flex fatigue. The

idler pulley is used when the pulley is fixed, when you want to reduce

vibration, or to increase the contact angle of the small pulley. When you

use an idler pulley, please follow the instructions given below. Please

contact us if you use an outside idler, in particular, since it considerably

reduces the belt service life.

INSTRUCTION TO USE THE IDLER PULLEY

u Use the idler pulley on the slack side of the belt.

u Use the idler pulley at inside of the belt, rather than outside.

u Do not place the idler pulley close to other pulleys.

u The idler pulley should be flat, without any flanges.

u Do not use the belt for clutching device using idler.

u Correct the power transmission capacity if the contact angle

might be changed.

1. When using the inside idler pulley

u Use an idler pulley with grooves.

u Position of the idler pulley should be near to the large pulley in order

to maintain the contact angle of smaller pulley.

The idler pulley diameter should be larger

than or equal to the smaller pulley diameter.

2. When using the outside idler pulley.

u Use the flat idler pulley without any crown.

u Position of the idler pulley should be near to the small pulley.

u Minimum idler pulley diameter is shown in the table below.

IDLER PULLEY MINIMUM DIAMETER

Belt Type J PK L M

MinimumPulley Diameter 50 90 150 300

The idler pulley diameter should be

1.5 times or more than the

Smaller pulley diameter.

113

TROUBLE SHOOTING


1. RIBBED BELT BREAKING AFTER Forcing the belt over pulley Use proper installation

A SHORT PERIOD OF RUNNING during installation. techniques

Overloaded drive Recheck the drive design

Ingress of foreign body Fit an effective guard

Drive stalled Check for lubrication

2. CUTS & SPLITS IN THE RIBS Pulley diameter too small Redesign using the min.

recommended diameters

Ambient temperature too Ensure good ventilation

high

Abnormal belt slip Check drive tension

Contamination by chemicals Protect the drive

3 SEVERE BELT VIBRATION Overloaded drive Redesigning drive may be

necessary.

Centre distance more than Use an inside idler on

recommended the slack side.

High shock loading Use an inside idler on the

slack side.

Too low belt tension. Re tension the drive

Unbalanced pulleys Balance the pulleys

4 CANNOT BE RETENSIONED Insufficient allowance for Modify the drive

retensioning

Excessive stretch caused by Redesign the drive

overloaded drive

Incorrect belt length Use belt of proper length

5 EXCESSIVE WEAR OF RIBS Starting torque too high Redesign the drive

Incorrect pulleys Remachine the pulleys

Excessive wear of grooves Remachine pulleys

Poor drive alignment Realign the pulleys

Smaller than recommended Redesign using correct

min. pulley diameter pulley diameters

Belt catching on protruding Remove protrusions

parts

Wrong section of belt for Correct the belt section

pulleys

Too low belt tension. Retension the drive

6 EXCESSIVE NOISE Contamination by oil, grease Protect the drive

or chemicals

114

ABBREVIATIONS

Physical Quantity Symbol Unit

Power P Kilowatt (Kw)

Torque T Newton-Metre (N-m)

Force F Newton (N)

Rotational speed n Rev / min

Pulley pitch diameter d Millimetre (mm)

Belt speed V Metre per second (m/s)

LENGTHInches x 25.4 = MillimetresInches x 0.0254 = MetresFeet x 0.3048 = Metres

FORCEkilogram Force (Kgf) x 9.81 = Newton (N)Pound Force (Ibf) x 4.45 = Newton (N)

TORQUEKilogramforce metre (Kgf - m) x 9.81 = Newton Metre (N-m)Pound feet (Ibf - ft) x 1.36 = Newton Metre (N-m)Pound Inches (Ibf - in) x 0.113 = Newton Metre (N-m)

POWERHorse Power (HP) x 0.746 = Kilowatt (Kw)Cheval-vapeur (CV) x 0.735 = Kilowatt (Kw)Pferdestarke (PS) x 0.735 = Kilowatt (Kw)

SPEEDFeet/Minute (ft/min) x0.00508 = Meter/Sec. (m/s)

MASSKilogram (kg) x 2.205 = Pound (Ib)Pound (Ib) x0.454 = Kilogram (Kg)

USEFUL FORMULAE 5Belt Speed (V) : V (m/s) = 5.236 x d x n (rev/min) / 10

Power (P) : P (Kw) = Torque (N-M) x n (rev/min)

9550

= Belt effective tension (N) x V/105

Torque (T) (N-M) = 9550 P n

Belt effective tension (Te) : Te (N) = 2000 T

d

Static tension (Ts) : Ts (N) = 32 x F x BWhere F is the force required to deflect a belt 15 mm per meter of span, 'B' is no. of belts.

2Centrifugal Tension (Tc) : Tc (N) = 2mV

Dynamic tension (TD) : TD(N) = Ts - Tc

CONVERSION CONSTANT

115

Documents

FINAL V-Belt Manual 1-29 - fordatachina.com Technical manual.pdf · DIN 2215, ISO 4183, ISO4184 Application: General industrial Drives & V-flat drives. Length Designation: Li in inches