Screw Jacks Selection, Calculation, Checklists - Zimm

022 by ZIMM Austria - 2004

Selection, Calculation, Checklists4.

Selection of Screw Jack System and Arrangement

4.1 Consideration of application requirements

R versionrotating spindle

4.2 Parameter seechecklist 1 to 6

4.5 Required drive torque per screw jack

4.6 Arrangement of screw jacks

4.5+6 Selection of motors

Defining system componentssee chapter 14

4.8 Determining lengths(spindle, protection tube)

4.9 Order code

Pre-selection of screw jack sizesee diagram on screw jack pages stat. / dyn. load (chapter 5+6)

Tensionload

Compressionload

4.3 Bucklingcalculation

Compressionload

Tensionload

4.4 Critical speed4.3 Bucklingcalculation

Pre-selection of Screw Jack sizesee diagram on Screw Jack pages

stat. / dyn. load (chapter 5+6)

min.spindle diameter

(maybe selecting a bigger screw jack type and

check again)

Please note:We would be pleased if youcould specify the parametersof the application to enablethe component parts to beconfirmed.

4.7 Checking max. power torque


check again)

min.spindle diameter


check again)

S versionstanding spindle

by ZIMM Austria - 2004 023


Design & SpecificationThe customer, based on the applicationcriteria can determine the selection anddimensioning of the system from theinformation contained in this catalogue.On request we can provide design adviceand calculations to determine the correctcomponents and compile a full quotationbased on your application criteria.ZIMM guarantee the quality of all of thecomponents shown in the catalogue. Thescrew jacks are designed for industrial useand for loads & operational duty as statedin the catalogue. For further informationplease contact our sales department.Our deliveries are subject to the GeneralTerms of Sale and Delivery according toour catalogue (chapter 21).

Lifting SpeedNormal version N: 1 mm stroke per

movement of driveshaft (MSZ-150 and bigger sizes - higher speed acc. to table)at 1500 min-1:

1,5 m/minSlow version L: 0,25 mm stroke per

movement of drive(MSZ-150 and bigger sizes - higher speed acc. to table) at 1500 min-1:

0,375 m/min

In order to increase the speed of thesystem the following options can be con-sidered:- Double pitch screw (Attention: max.

input torque, system is not self-locking, system brake required)

- Larger diameter spindle with R version (spindle of the next larger size): depending on the screw jack size faster pitch, higher torque requirement

- Ball screw: various pitch options- Rotary pulse encoder: Enables an

increase in motor speed of more than 1500. This system is only designed for

4.1 Construction Advice

light loads and low duty operation.To reduce system speed- Use a motor with more poles / lower

speed (6, 8, 10 or 12 poles)- Rotary pulse encoder (for slower speed

operation below 25 Hz an adequate method of cooling the motor is required)

- Geared motor (Attention to max input torque is required)

- Bevel gearbox with gear reduction (only for certain applications)

Temperature and Operating timeScrew jacks are generally not designed for continuos operation.Max operational time is stated as ED inchapter 5 & 6. These values are for refe-rence only and must be checked againstthe individual application criteria. In bor-derline cases the next biggest gearboxmay require selection or contact our tech-nical dept. Operating temperatures shouldnot exceed 80 degrees.

Parallelism and AngularityCare must be exercised to ensure that thesystems are parallel to each other as wellas level and aligned with the mountingsurfaces. Connecting shafts, pillow blocksetc. must be axially aligned with eachother.

GuidanceThe guide bushes incorporated in thescrew jack gearbox can only tolerate aplay of between 0.2 & 0.6mm are notdesigned to take high side forces on thesystem. For most appli-cations a suitable additional guidancesystem should be designed into theapplication to counteract any sideforces.

Protection AgainstRotationWith the standingscrew version S the spindle is free runningwithin the gearbox (worm wheel). It istherefore necessary to protect the spindlefrom rotating due to the friction in theworm wheel. This can be achieved byincorporating an additional external gui-dance system or by using the protectionagainst rotation (mounted internally wit-hin the protective tube).



Design & Specification

A flat-machined surface is necessary. Thefour attachment bolts are designed forthe rated static loads of the gearbox intension and compression. Additional impactloads and vibration must be taken intoaccount (Grey cast iron housing GG25).The length of the mounting screws mustbe observed. Tension loads on the moun-ting bolts should be avoided. With un-known factors like shock and vibration werecommend additional protection of thescrew jack by using guide rails and threa-ded rods. This will ensure loads in tensionand compression are secured.

Safety DistancesSafety distancesmust be observedbetween movingand stationarycomponentsotherwise there isthe risk of damageto the system.

AccuracyThe repeat accuracy of thegearbox can beup to 0.05mm ifthe load is con-stant and in thesame direction.This requires alsosuitable controlof the drive system e.g. using a rotary voltage braked motor in connection witha frequency converter, a rotary pulseencoder or a servo motor with encoder, etc.

The pitch precision of the trapezoid screwis 0.2mm per 300mm of spindle length.With ballscrews it is 0.05mm per 300mmof spindle length.Under alternating load, tension & com-pression the axial play can be up to0.4mm with the trapezoid spindle and0.08mm with the ballscrew.For systems which require zero clearancewe recommend the use of the gearboxversion incorporating Anti-Backlash ABwith adjustment (chapter 10).

Direction of Rotation and Movement

Check the direction of the required rotation and detail this in your designdrawing or select one of the standardsystem layouts (chapter 4). With T bevelgearbox the direction of rotation can bechanged by rotating the gearbox around.

Self-locking / OverrunScrew jacks with a single pitch trapezoidthread have a limited self-locking capabi-lity. Where shock or vibration is evident abrake should be incorporated into thesystem. The potential overrun after having stop-ped the motor differs from application toapplication. In order to minimise the over-run to a minimum we recommend to use abrake motor or a spring pressure brakeFDB. A braked motor is essential where adouble pitch trapezoid screw or ballscrewis used as they are not self locking.

DriveIn order toachieve softstart for acce-leration anddecelerationwe recommendthe use of a frequency inverter. The lifeti-me of the system will be increased and thenoise of the system will be reduced.

Trial RunA trial run under normal operating condi-tion including load is necessary to ensurecorrect operation. On-site trial runs arenecessary to ensure precise alignment ofthe system and make any necessaryadjustments.

Spare PartsIt is recommended that a range of spareparts gearboxes, spindles etc. are held byyour customer. This is especially relevantwhere high duty application are involved.

Stage EngineeringZIMM systems are specified to meet theregulation of the Stage Lifting industry.

Vehicles for Land, Air or WaterFor applications, which are mobile eitheron land, sea or air are generally excludedfrom our normal warranty terms. Specialconditions will apply. Please contact oursales department.

Environmental ConditionsFor special applications outside of normalenvironmental conditions please contactour technical department.




LubricationSufficient lubri-cation is essen-tial for the life-time of thesystem. Thespindle, gear-box & protec-tion against rotation must be suitablylubricated. The red lubrication strip for theprotection against rotation can be moun-ted in optional positions to meet yourrequirements. Please also see the automa-tic lubrication system (14.3.7) and mainte-nance instructions (chapter 16).

Mounting, Operation and MaintenanceInstructionThe installation instructions (chapter 16)must be adhered to.

Construction Advice for Plant Engineers:Where machined surfaces are used fewassembly problems should be encountered.However geometric errors can occur inwelded frames despite accurate assemblyand it is therefore important to considerthe following:

Parallelism / Angularity:Screws and linear guides must be parallelotherwise the whole system could seize upduring operation. All mounting surfacesfor the gearboxes must be at right anglesto the linear guides otherwise wear ordamage to the components could occur.


Printing errors, mistakes regarding dimensions, etc., as well as technical changes and improve-ments are excepted. Valid are the drawings which are have been checked and approved by bothpartners in accordance with the order acknowledgement.

The mounting surfaces for the nuts shouldalso be at right angles. The option of theself aligning nut should be considered forcertain applications (chapter 14).

Alternatively the use of the hinged bearing plate KAR could be considered (chapter 14).



4.3 Critical Buckling Force of the Lifting Screw

There is a buckling risk especially withgearboxes with long, thin spindles in com-bination with compression load. With thefollowing calculation you can find themax. allowed axial load acc. to Euler.

If the max calculated load is lower thanrequired a larger spindle diameter couldbe selected. The calculations must then be reworked.With the rotating screw version a largerdiameter screw can be selected (from thenext bigger gearbox size). Any increase in pitch/ lifting speed must

be taken into account.

The safety factors for the type of systemspecified must be used, as shown above,to calculate the max allowable axial loadfor the system.

Version Sguided lifting motion with hinged plate

Version Snon guided lifting motion,gear firmly mounted

Version Sguided lifting motion, gear firmly mounted

Version Rfor a small L1 there applies: fk = 2guided lifting motion

fk = 1 fk = 0,25 fk = 2 fk = 4

Crit

ical

buc

klin

g fo

rce

F k in

kN

free length L in mm

Maximum allowed axial load

Fall = 0,8 x Fk x fk

Fall maximum allowable axial load (kN)Fk theoretical critical buckling force

(kN) acc. to diagramfk correction value (considers kind of

bearing support, respectively guidance of lifting load) see pictograms above



4.4 Critical Whirling Speed of Spindle - R Version

For R version gearboxes (with rotatingspindle) with long, thin spindles it isnecessary to calculate the max. allowablespindle speed. Please take the theoreticalcritical speed nkr from the diagram. Alsoconsider the additional lenghts for spindlecovers, etc. when calculating the unsup-ported screw lengths .Together with the correction factor forthe bearing layout the max. allowable

spindle speed can be calculated.

If the calculated max spindle speed islower than that required, a larger spindleshould be selected. The calculations mustthen be reworked.If a larger diameter spindle is used in theR version the potential for higher drivetorque's must be considered.

The safety factors for the type of systemspecified must be used, as shown above,to calculate the max allowable axial loadfor the system.

Maximum allowable spindle speednall = 0,8 x nkr x fkr

with opposed bearing plate

fkr = 1

without opposed bearing plate

fkr = 0,5

unsupported screw lengths [m]

theo

reti

cal s

pind

le w

hirli

ng s

peed

nkr

[min

-1]

input speed

igearboxspindle speed =



4.5 Determining the Drive Torque [MG] of a Lifting Gear

With the formula shown below it ispossible to calculate the necessarydrive torque. In order to facilitate the calculation ofthe drive torque we have determinedmultiplication factors out of this for-mula and have stated them in thetechnical data for the single gearboxversion.

Formula1): Example:

Drive torque: MG = + ML [Nm]

Power of motor: PM[kW] =

F [kN] . P [mm]

2 . . Gearbox . Spindle . i

MG [Nm] . n [min-1]

9550

MG = + 0,36 Nm = 6,21 Nm12 kN . 6mm

2 . . 0,87 . 0,375 . 6

PM = = 0,975 kW6,21 Nm . 1500 min-1

9550

Example: 0,975 kW . 1,4 = 1,365 kW motor 1,5 kWSafety factor (start torque) = calculateddrive torque x 1.3 to 1.5 (for smallersystems use up to x 2).

1) For gearboxes with one-pitch trapezoidal spindles it is also possible to multiply thefactor which is stated on the corresponding gearbox page with the load.

The efficiency of a trapezoid screw issubstantially lower than that of ballscrews due to friction.However, the trapezoid screw istechnically more simple and morefavourable. A safety device (e.g. abrake) is rarely required for trapezoidscrews due to their self-locking

capability.With a ballscrew system an efficien-cy factor of =0,9 can be used. It is essential to incorporate a breakinto a ballscrew system.

Tr spindle SpindleEfficiency

single pitch

Tr spindle SpindleEfficiency

double pitch

Tr1218203040506080100120140

P3446781216161620

lubricated

0,4270,3990,3750,3750,3440,3140,3680,3680,3140,2730,288

Tr1218203040506080100120140

P6881214162432323240

lubricated

0,5920,5650,5400,5400,5090,4740,5320,5320,4740,4260,444

MSZNL

20,820,77

50,840,62

100,860,69

250,870,69

500,890,74

1000,850,65

1500,840,67

2500,860,72

3500,870,70

5000,840,62

6500,850,65

MSZNL

20,060,04

50,100,08

100,260,16

250,360,26

500,760,54

1001,681,02

1501,901,20

2502,641,94

3503,242,20

5003,962,84

6505,603,40

Efficiency of gearboxes Gearbox (without spindle) at n = 1.500

Idling torques ML of gearboxes [Nm]

With ball screws you basically can calculate with an efficiency factor of =0,9.

MSZ-25-SN F = 12 kN (lifting load dynamic)Gearbox = 0,87 Spindle = 0,375P = 6 i = 6

MG Required drive torque [Nm] of a lifting gearF Lifting load (dynamic) [kN]Gearbox Efficiency of the lifting gear (without spindle) Spindle Efficiency of the spindleP Spindle pitch [mm]i Transmission of the lifting gearML Idling torque [Nm]PM Power of motor

!



4.6 Drive Torque for Gearboxes

Attention:It is recommended to multiply the cal-culated value with a safety factor of1.3 to 1.5 (for smaller systems factorup to 2). The indicated values are appli-cable in cases of uniform distributionof the lifting gear load onto all gears!

MR Total drive torque for the whole system

MG - Input torque of a single gearbox

MA Starting torque max. 1,5 x MR

Example (example from the left page, 12 kN per gearbox)

MR = MG x 4,6 = 6,21 Nm x 4,6 = 28,57 Nmx safety factor 1,3 = 37,14Nm

MR = MG x 2,25

MR = MG x 2,1 MR = MG x 3,1 MR = MG x 3,35

MR = MG x 4,6 MR = MG x 6,8 MR = MG x 4,4

MR = MG x 3,34 MR = MG x 3,27

CalculationThe required drive torque of a lifting gearresults from the sum of the moments ofthe individual lifting units. This is increa-sed due to frictional losses of transmissioncomponents like couplings, connectingshafts, bevel gears, etc.

To simplify the calculation, some factorsfor determining the drive torque in themost common applications are providedbelow.



4.7 Maximum Power / Moments

Load definitions

F - Lifting load tension and/or compressionFS - Side forces on the spindlevH - Lifting speed of the spindle

(or nut of the R version)FA - Axial load of the input shaftFR - Radial load of the input shaftMR - Drive torquenR - Drive speed

Please examine the information on the following pages before making your choice of the lifting gear suited for yourapplication. Various influences and assumptions can only beestimated on the basis of information gained by experience.In case of doubt please contact our sales engineers.

Side forces on the spindlePlease refer to the ajoining table for themaximum permissable side force. Side for-ces should be supported by a guidancesystem whenever possible. The bronzebushings in the gearbox are a secondarysupport only and should not be reliedupon as adequate guidance. The maximumside force at a given screw extension mustnot exceed that stated in the ajoiningtable.Attention: only statically allowed!

Max. drive torqueThe stated values of the table on the rightshould not be exceeded. If gearboxes arearranged in tandem or in larger arrange-ments the maximum drive torque may behigher. If there are more than 5 gearboxesin an arrangement please contact oursales engineers.

Radial load on the input shaftThe radial forces of the table on the rightshould not be exceeded if you use chaindrives or belt drives.

MSZ5102550100150250350500650750

Type

MR SN/RNMR SN/RNMR SL/RLMR SL/RL

min-1

15005001500500

SHZ-020,71,00,50,7

MSZ-5

6,410,42,64,3

MSZ-10

12,620,55,38,4

MSZ-25

21,734,27,812,5

MSZ-50

44,770,315,524,5

MSZ-10072,0114,917,027,8

MSZ-15067,3107,017,327,7

MSZ-250

118,4185,123,536,6

MSZ-350

187,0295,740,263,9

MSZ-500

204,3325,642,871,2

MSZ-650

268,3427,962,8102,6

MSZ-750

415,0663,083,0132,0

100360600900300050005500900015000290003480046000

200160280470200040005000900013000290003480046000

300100180300130030003900650012000290003480039000

4007013024090023002800490010000290003480036000

500551001807001800230038008800290003480032000

60045801506001500180030007000240002880030000

70038701305001300150025006000200002400025000

80032601104201100130022005500170002040029000

9002850100380950120020004800150001800025000

1000254790330850100019004300140001680023500

120020407028070085014503500120001440020000

15001830602306007501250300090001080017000

200012204516040050090020007000840012000

2500153513035040076016005600672010000

3000301002503506601400490058808000

maximum side force FS [N] (static) extended screw length in mm

maximum drive torque MR [Nm]

maximum radial load acting on the input shaft FR [N]

FR max.

SHZ-02

18

MSZ-5

110

MSZ-10

215

MSZ-25

300

MSZ-50

520

MSZ-100

800

MSZ-150

810

MSZ-250

1420

MSZ-350

2100

MSZ-500

3780

MSZ-650

4536

lifting screw

input shaft= worm shaft

F

FS

VH

MR nR

FR

- Consider that the starting torque is factor 1.5 of the operation torque- Limit values are mechanical - consider thermical factors depending on operating time

FA



4.8 Calculating Spindle and Protective Tube Lengths

The following tables will allow calculationof the required spindle and protectivetube length for the screw jack systemselected.

BasicDepending on gearbox version and systemcomponents the spindle (and protectivetube for S version) have to be extended.

These lengths are important. For non stan-dard layouts please provide a drawing orcontact the technical department.

Stroke + basic length (+ extensions for variants/system components)

Example S:MSZ-25-SN, stroke: 250 mmbellow MSZ-25-FB-300 (compression ZD=70mm)fixing flange BF (therefore bellow without retainer)protection against rotation VSlimit switch ESSET

Spindle length Tr:

250 + 180 + 43 + 44 = 517 mmstroke basic length bellow limit switch spindle length

(70-27=43) + protection against rotation

protective tube length SRO:250 + 55 + 71 = 376stroke basic length limit switch protective tube length

+ protection against rotation

Example R:MSZ-25-RN, stroke 250 mmspindle with pilot (opposed bearing plate GLP)bellow MSZ-25-FB-300 (compression ZD=70mm) below and aboveduplex nut DM

Spindle length Tr:250 + 145 + 60 + 55 + 50 = 560 mmstroke basic length bellow gearbox-sided 2. bellow duplex nut spindle length

(70-10=60) (70-15=55)

Length calculation for connecting shafts can be found in chapter 14.4.



4.8 Length Calculation, Standing Version S - SpindleTr

bas

ic le

ngth

Tr b

asic

leng

th w

ith

safe

ty n

utTr

bas

ic le

ngth

Ant

i-Ba

ckla

shKG

T ba

sic

leng

th

Esca

pe p

rot./

prot

. aga

inst

rot.

(evt

l. W

MS)

Lim

it s

wit

ch3)

(+ev

tl. l

inea

r m

easu

ring

syst

.)ES

3)an

d hi

nged

bea

ring

plat

e (e

vtl.

WM

S)

MSZ

-513

9

16x0

520

316

x10

223

15 41 63

MSZ

-10

161

25x0

5 23

825

x10

258

25x2

532

825

x50

458

20 45 63

MSZ

-25

180

32x0

526

332

x10

273

32x2

030

332

x40

373

20 44 69

MSZ

-50

240

40x0

532

640

x10

326

40x2

035

640

x40

416

30 55 80

MSZ

-100

325

50x1

043

050

x20

470

30 55 90

MSZ

-150

338

63x1

042

7

30 48 95

MSZ

-250

386 - - - - 30 48 107

MSZ

-350

434 - - - - 35 53 119

MSZ

-500

524 - - - - 40 58 154

MSZ

-650

573 - - - - 40 59 154

-19

221

627

636

238

446

752

262

667

6

spin

dle

exte

nsio

n S

vers

ion

bel

ow g

earb

ox (t

ube

side)

spin

dle

exte

nsio

n S

vers

ion

abo

ve g

earb

ox

Bello

ws

wit

h bu

shin

g (G

K / K

GK)

1)

Bello

ws

wit

hout

bus

hing

(BF

/ SLK

) 1)Be

llow

s an

d KA

R w

ith

FBR

(GK

/ KG

K)1)

Bello

ws

and

KAR

wit

hout

FBR

(BF

/ SLK

) 1)

MSZ

-05

ZD -

2ZD

-22

ZD +

32ZD

+12

MSZ

-10

ZD +

1ZD

-24

ZD +

34ZD

+9

MSZ

-25

ZD +

5ZD

-27

ZD +

53ZD

+22

MSZ

-50

ZD +

10ZD

-36

ZD +

67ZD

+21

MSZ

-100

ZD +

8ZD

-40

ZD +

81ZD

+33

MSZ

-150

ZD +

2ZD

-18

ZD +

71ZD

+51

MSZ

-250

ZD +

2ZD

-18

ZD +

93ZD

+73

MSZ

-350

ZD +

2ZD

-18

ZD +

114

ZD +

94

MSZ

-500

ZD +

2ZD

-18

ZD +

136

ZD +

116

MSZ

-650

2)ZD

+2

ZD -

18ZD

+12

8ZD

+10

8

Safe

ty d

ista

nces

are

alre

ady

incl

uded

in b

asic

leng

ths!

(T

r sp

indl

e: 1

0mm

up

to M

SZ-1

00, 1

6mm

fro

m M

SZ-1

50, f

or K

GT

see

chap

ter

9.1,

dim

ensi

on L

3)

1)

The

valu

e w

ill b

e ad

ded

or s

ubtr

acte

d to

the

ZD

dim

ensi

on o

f th

e be

llow

- t

he re

sult

will

the

n be

add

ed t

o th

e sp

indl

e le

nght

.(e

.g. Z

D =

70

>>

ZD-2

2 =

48

mm

>>

spin

dle

exte

nsio

n fo

r be

llow

is 4

8 m

m)

2)

Bello

w, b

ello

w r

ing

and

bello

w a

dapt

er a

re s

imila

r to

MSZ

-500

3)

Lim

it s

wit

ches

ES

are

alw

ays

in c

ombi

nati

on w

ith

prot

ecti

on a

gain

st ro

tati

on V

S (V

S is

in t

he e

xten

sion

incl

uded

)

Spin

dle

exte

nsio

n fo

r sp

iral s

prin

g co

verin

g SF

: As

the

ext

ensi

on o

f th

e sp

iral s

prin

g co

verin

g di

ffer

s de

pend

ing

on t

he a

ttac

hmen

t, th

is v

aria

nt h

as t

o be

cal

cula

ted

grap

hica

lly.

If n

eces

sary

we

wou

ld b

e pl

ease

d to

gen

erat

e th

is d

raw

ing.

Abbr

evia

tion

s:AS

Esca

pe p

rote

ctio

nKA

RH

inge

d be

arin

g pl

ate

BFFi

xing

fla

nge

KGK

Rod

end

ESLi

mit

sw

itch

SLK

Pivo

t be

arin

g he

adFB

RBe

llow

s co

nnec

ting

rin

gW

MS

Line

ar m

easu

ring

syst

emG

KFo

rked

hea

dZD

Com

pres

sion



4.8 Length Calculation, Standing Version S Protective Tube SROM

SZ-1

050

25x0

560

25x1

080

25x2

515

025

x50

280

20 72 90 36

MSZ

-548

16x0

560

16x1

080

15 69 91 31

MSZ

-25

5532

x05

6532

x10

7532

x20

105

32x4

017

520 71 96 36

MSZ

-50

6440

x05

7440

x10

7440

x20

104

40x4

016

430 82 10

746

MSZ

-100

7550

x10

9550

x20

135

30 82 117

46

MSZ

-150

8763

x10

95

30 69 116

46

MSZ

-250

92 - - - - 30 69 128

46

MSZ

-350

102 - - - - 35 74 140

51

MSZ

-500

112 - - - - 40 79 175

56

MSZ

-650

112 - - - - 40 79 174

56

prot

ectiv

e tu

be e

xten

sion

S ve

rsio

n

46 116

47 117

37 107

37 107

37 107

37 107

32 102

27 9727 97

1) B

asic

leng

th o

f pr

otec

tive

tub

e w

itho

ut c

ap -

to

achi

eve

the

who

le p

rote

ctiv

e tu

be le

ngth

add

ano

ther

5m

m f

or t

he c

ap

Atte

ntio

n: m

inim

um s

trok

e w

ith

limit

sw

itch

ES:

2) Is

a lo

wer

str

oke

requ

ired

as s

tate

d ab

ove,

the

lim

it s

wit

hces

and

the

lubr

icat

ion

strip

s ha

ve t

o be

mou

nted

on

two

diff

eren

t si

des

(ass

embl

y po

siti

on)!

3) L

imit

sw

itch

es E

S ar

e al

way

s in

com

bina

tion

wit

h pr

otec

tion

aga

inst

rota

tion

VS

(VS

is in

the

ext

ensi

on in

clud

ed)

Tr b

asic

leng

th 1

)

KGT

basi

c le

ngth

1)

Esca

pe p

rot./

prot

. ag.

rota

t. AS

/VS

Lim

it s

wit

ch E

S 3) (

+ ev

tl. W

MS)

+ V

SES

3)an

d hi

nged

bea

ring

plat

e KA

RVS

+ L

inea

r m

easu

ring

syst

em W

MS

min

.stro

ke w

ith

limit

sw

itch

ES

3) 2

)

min

.stro

ke w

ith

ES3)

+ lu

bric

. str

ip 2)

48 118



4.8 Length Calculation, Rotating Version R - Spindle

Tr b

asic

leng

th w

itho

ut m

achi

ned

end

Tr b

asic

leng

th w

ith m

achi

ned

end

(= st

an-

dard

for

opp

osed

bea

ring

plat

e G

LP)

Tr b

asic

leng

th l

arge

r dia

met

er w

ith m

achi

ned

end

1)

KGT

basi

c le

ngth

wit

hout

mac

hine

d en

d 2)

KGT

basi

c le

ngth

larg

er d

iam

eter

wit

hout

mac

hine

d en

d 2)

KGT

basi

c le

nth

wit

h m

achi

ned

end

2)

KGT

basi

c le

ngth

larg

er d

iam

eter

wit

hout

mac

hine

d en

d 2)

Flan

ge n

ut F

MD

uple

x nu

t D

MSe

lf-a

ligni

ng n

ut P

MG

reas

eles

s nu

t FF

DM

DM

+ S

afet

y nu

t SI

FAPM

+ S

afet

y nu

t SI

FA1.

FB

gear

box-

nut

5)

2. F

B nu

t-op

posi

te b

earin

g pl

ate

5)

KAR6

)sp

indl

e-si

ded

and1

. bel

low

5)

MSZ

-05

93 113

16x0

514

516

x10

178

25x0

514

525

x10

178

25x2

522

825

x50

381

16x0

516

016

x10

193

25x0

516

525

x10

198

25x2

524

825

x50

401

35 45 78 53 70 123

ZD -

12ZD

-10

ZD +

18

MSZ

-10

106

131

25x0

515

825

x10

191

25x2

524

125

x50

394

32x0

517

132

x10

195

32x2

023

632

x40

271

25x0

517

825

x10

211

25x2

526

125

x50

414

32x0

519

632

x10

220

32x2

026

132

x40

296

44 45 83 53 84 128

ZD -

12ZD

-14

ZD +

18

MSZ

-25

120

150

32x0

518

532

x10

209

32x2

025

032

x40

285

40x0

518

740

x10

201

40x2

024

040

x40

305

32x0

521

032

x10

234

32x2

027

532

x40

310

40x0

521

740

x10

231

40x2

027

040

x40

335

46 50 95 59 95 158

ZD -

10ZD

-15

ZD +

32

MSZ

-50

163

208

40x0

523

040

x10

244

40x2

028

340

x40

348

50x1

027

850

x20

318

40x0

526

040

x10

274

40x2

031

340

x40

378

50x1

032

350

x20

363

66 70 129

85 133

212

ZD -

12ZD

-15

ZD +

32

MSZ

-100

212

267

50x1

032

750

x20

367

63x1

035

263

x20

422

50x1

037

250

x20

412

63x1

040

763

x20

477

90 90 190 - 173

300

ZD -

12ZD

-10

ZD +

46

MSZ

-150

251

326

63x1

037

963

x20

449

80x1

037

980

x203

)45

980

x204

)47

4

63x1

043

463

x20

504

80x1

045

480

x203

)53

480

x204

)54

9

115

210 - 211

330

ZD -

18ZD

-26

ZD +

42

MSZ

-250

279

379

80x1

040

780

x203

)48

780

x204

)50

2

80x1

048

280

x203

)56

280

x204

)57

7

140

224 - 249

374

ZD -

18ZD

-36

ZD +

65

MSZ

-350

311

431

160 - - 266 -

ZD -

18ZD

-56

ZD +

80

MSZ

-500

352

472

180 - - 303 -

ZD -

18ZD

-21

ZD +

100

MSZ

-650

387 - - 220 - - - -

ZD -

18ZD

-41

ZD +

99

Spin

dle

exte

nsio

n R

vers

ion

Safe

ty d

ista

nces

are

alre

ady

incl

uded

in b

asic

leng

ths!

(T

r sp

indl

e: 1

0mm

up

to M

SZ-1

00, 1

6mm

fro

m M

SZ-1

50, f

or K

GT

see

chap

ter

9.1,

dim

ensi

on L

3)

1) W

hen

usin

g a

larg

er d

iam

eter

spi

ndle

als

o se

lect

the

sys

tem

com

pone

nts

of t

he n

ext

bigg

er g

earb

ox.

(MSZ

-10

wit

h la

rger

dia

met

er s

pind

le h

as s

pind

le T

r30x

6, s

yste

m c

ompo

nent

s of

MSZ

-25

- th

eref

ore

also

cal

cula

tion

al s

pind

le e

xten

sion

of

gear

box

size

25)

.2)

The

bas

ic le

ngth

of

KGT

spin

dles

incl

udes

the

leng

th o

f th

e KG

T nu

t an

d th

e sa

fety

dis

tanc

e ac

cord

ing

to Z

IMM

cat

alog

ue (s

ee c

hapt

er 9

.2, s

ize

L3).

3) K

GT

nut

wit

h dy

nam

ic lo

ad ra

ting

135

kN a

nd s

tati

c lo

ad ra

ting

322

kN (8

0x20

-4EP

).4)

KG

T nu

t w

ith

dyna

mic

load

161

,5kN

and

sta

tic

load

rati

ng 3

98kN

(80x

20-5

EP).

5) T

he v

alue

will

be

- de

pend

ing

on t

he a

lgeb

raic

sig

n -

adde

d or

sub

trac

ted

of t

he Z

D (c

ompr

essi

on) d

imen

sion

of

the

bello

w

- th

e re

sult

will

the

n be

add

ed t

o th

e sp

indl

e le

nght

.6)

KAR

is t

he h

inge

d be

arin

g pl

ate

Spin

dle

exte

nsio

n fo

r sp

iral s

prin

g co

veri

ng S

F:

As t

he e

xten

sion

of

the

spira

l spr

ing

cove

ring

diff

ers

depe

ndin

g on

the

att

achm

ent,

this

var

iant

has

to

be c

alcu

late

d gr

aphi

cally

. If

nec

essa

ry w

e w

ould

be

plea

sed

to g

ener

ate

this

dra

win

g.

108

126

145

193

257

306

354

411

472

507



4.9 Order - Code MSZ

Mill

enni

umSe

ries

ZIM

M MSZ MS

Z

Size

Hou

sing

- m

ater

ial

Vers

ion

Rati

oVe

rsio

n of

thr

ead

Spin

dle-

/

Pitc

hN

umbe

r of

gear

s, m

ater

ial

Stro

keLi

st o

f sy

stem

com

pone

nts

5 10 25 50 100

150

250

350

500

650

750

G Grey

cas

t iro

n G

G25

Hea

vy d

uty

desig

n(n

ot sp

ecifi

ed =

G)

A Alum

iniu

m

S Stee

l(M

SZ 7

50)

S Stan

ding

ver

sion

R Rota

ting

vers

ion

N Nor

mal

e.g.

i =

4:1

L Low

e.g.

i =

16:1

TR Trap

ezoi

dal s

pind

le(n

ot sp

ecifi

ed =

Tr)

-->

chap

ters

5 a

nd 6

TR/S

IFA

Tr w

ith sa

fety

nut

SIFA -->

chap

ter 8

TR/A

BTr

, Ant

i-Ba

ckla

sh A

B(o

nly

with

S v

ersio

n)--

> ch

apte

r 10

KGT

Ball

scre

ws

-->

chap

ter 9

TR/S

IFA-

VUw

ith

wea

r con

trol

TR/S

IFA-

DUw

ith ro

tatio

nco

ntro

l

TR/S

IFA-

VU/D

Uw

ith ro

taio

n +

wea

r con

trol

TR 1804

2004

... KGT

1605

1610

...

1 1-pi

tch

(not

spec

ified

= 1-

pitc

h)2

*2-

pitc

hI IN

OX

(stai

nles

s)

LH *

left

-thr

eade

d

H Str

oke

H +

stro

kein

mm

List

of

syst

em

com

pone

nts

(ord

er d

oes n

otm

atte

r)--

> ch

apte

r 14

*) av

aila

ble,

but

not f

rom

stoc

k.De

liver

y tim

eon

requ

est

Ord

er e

xpam

ple:

MSZ

- 1

0 -

G -

SN

- T

R/S

IFA

- 2

004

- 1

- H

300

- F

B39

0 -

VS -

BF

Size

Materi

al - ho

using Ver

sion S o

r R Ratio N

or L

Version

of thr

ead

Spindl

e diam

eter

Spindl

e pitch

Number

of gea

rs

Stroke

List of

system

comp

onents

(order d

oes no

t matte

r)

Documents

Screw Jacks Selection, Calculation, Checklists - Zimm