2 Product Description and Overview of Types · 2014. 8. 2. · 14 Catalog – Helical and Bevel-Helical X.. Series Gear Units 2 General information Product Description and Overview

Catalog – Helical and Bevel-Helical X.. Series Gear Units 11

2Design featuresProduct Description and Overview of Types

2

2 Product Description and Overview of Types2.1 Design features

• Independent industrial gear unit platform• Helical and bevel-helical gear units • Single-piece and split gear unit housing• Distinctive modular technology• Customer-specific adaptations• Universal mounting positions• Large number of variants due to predefined accessory equipment and options

2.2 Advantages at a glanceThe X series was completely newly designed. Advantages are:• Extremely robust gear unit housing• Reduced costs and weight due to high power density and finely stepped gear unit

sizes• Effective cooling systems• Mounting option on both sides due to axially symmetric housing concept• Efficient project planning tools including generation of 2D and 3D dimension

drawings• Short delivery times for standard designs• Worldwide service

2.3 Application areasThe X series can be used in the following application areas:• In conveyor systems as used in the building material, extractive, chemical, food and

feed industries• In the timber and paper industry• In the environmental industry• In agitators and mixers• As traction and hoist drives for assembly halls, handling and container cranes • For shredders and crushers• For bucket conveyors in bulk-handling technology

12 Catalog – Helical and Bevel-Helical X.. Series Gear Units

2 General informationProduct Description and Overview of Types

2.4 General informationThe subsequent chapters provide an overview of the various gear unit types.

2.4.1 Gear unit typesSEW-EURODRIVE distinguishes between 3 gear unit types:• X.F..:Helical gear units with parallel shafts

• X.K..:Bevel-helical gear units with right-angle shaft arrangement

• X.T..: Bevel-helical gear units with right-angle shaft arrangement

68226AXX

68227AXX

68228AXX


2General informationProduct Description and Overview of Types

2

2.4.2 Mounting positionThis catalog describes • Horizontal gear units (mounting position M1)• Vertical gear units (mounting position M5)• Upright gear units with input and output shaft arranged on top of one another

(mounting position M4) (see page 35).For other mounting positions or for inclined or changing mounting situations ("pivotedmounting positions", page 41), such as can occur with drives in booms, please requestinformation and dimension sheets from SEW-EURODRIVE.

2.4.3 Reversible gear unitsThe gear unit housings are symmetric to the central axis, so that overhead mounting ispossible for mounting positions M1/M3. If you want this to be the case, contact SEW-EURODRIVE for adjusting the gear unit, options and accessories accordingly.

67704AXX

180°

M1

M3



2.4.4 Torques and input speedsThe nominal power and torque values mentioned in the catalog depend on the inputspeed and are valid for a service factor of FS = 1.0 and constant, unidirectional load.Only 70% of these values apply in the case of changing load directions.The overview shows nominal torques for input speeds of 1000 rpm to 1800 rpm. Thenominal torque classes also apply to input speeds of 3% less than the synchronousspeed. Contact SEW-EURODRIVE for speeds >1800 rpm.The following table provides an overview of the technical data.

2.4.5 Output shaft (LSS) variantsThe following output shaft variants are possible:• Solid shaft with keyway (X..S.), with one- or two-sided shaft end• Solid shaft in smooth design (X..R.)• Splined solid shaft according to DIN 5480 (X..L.)• Hollow shaft with keyway (X..A.)• Hollow shaft for shrink disk connection (X..H.)• Splined hollow shaft according to DIN 5480 (X..V.)For additional information, see page 20.

Nominal gear ratio range

Size Nominal torque [kNm] classes

X.F.. X.K.. X.T..

X100 6.8 7.1 ... 100 7.1 ... 80 14 ... 80

X110 8.5 8 ... 112 8 ... 90 16 ... 90

X120 12.8 6.3 ... 355 12.5 ... 355

X130 16 8 ... 450 16 ... 450

X140 22 6.3 ... 355 12.5 ... 355

X150 27.5 8 ... 450 16 ... 450

X160 36 6.3 ... 355 12.5 ... 355

X170 45 8 ... 450 16 ... 450

X180 58 6.3 ... 355 12.5 ... 355

X190 65 7.1 ... 400 14 ... 400

X200 79 6.3 ... 355 12.5 ... 355

X210 90 7.1 ... 400 14 ... 400

X220 112 6.3 ... 355 12.5 ... 355

X230 131 7.1 ... 400 14 ... 400

X240 156 6.3 ... 355 12.5 ... 355

X250 175 7.1 ... 400 14 ... 400

X260 205 6.3 ... 355 12.5 ... 355 -

X270 240 7.1 ... 400 14 ... 400 -

X280 270 8 ... 450 16 ... 450 -

X290 308 6.3 ... 355 12.5 ... 355 -

X300 350 7.1 ... 400 14 ... 400 -

X310 425 6.3 ... 355 12.5 ... 355 -

X320 475 7.1 ... 400 14 ... 400 -



2

2.4.6 Ambient conditionsThe gear units are suited for operation at ambient temperatures from -40 °C to +40 °C,however, the standard design might have to be modified depending on the ambienttemperature.When operated in areas with low ambient temperatures, high levels of moisture,aggressive or explosive atmospheres, please consult SEW-EURODRIVE so that seal-ing, lubrication, ventilation, surface protection and other properties of the gear unit canbe adjusted to the specific ambient conditions.

2.4.7 HousingThe gear unit housings are made of sturdy cast iron. The housing is either a single-piecehousing or a two-piece housing with horizontal parting line.

Single-piece housing

Single-piece housing is standard up to size 210

Two-piece housing

Two-piece housing is standard from size 220.

68265AXX

68266AXX



Horizontal housing

As standard, the housing is designed and machined universally for all mountingpositions. From size 260, the horizontal housing is standard for mounting position M1.

2.4.8 Gearing and shaftsThe gearing with edge corrections is made of high-quality, tempered and ground casehardened steels. The output shafts are made of tough quenched and tempered steel.

2.4.9 Shaft bearingSelf-aligning, cylindrical and tapered roller bearings from well-known manufacturers areused.

2.4.10 Torque arm/gear unit mountingInstead of foot mounting, gear units can be mounted with torque arm, see page 121 ormounting flange, see page 122 .The basic variants are:• Foot mounting (X.../B)• Flange mounting (X.../F)• Torque arm (X.../T)

2.4.11 LubricationSplash, bath or pressure lubrication is used for gear units depending on the mountingposition, gear unit size and type (page 70 and subsequent pages).An oil expansion tank might be required for bath lubrication. With pressure lubrication,the bearings and gearing are lubricated via an integrated shaft end pump or an attachedmotor pump.An oil dipstick or an oil level glass (standard for splash lubricated gear unit sizes X180to X320 in mounting position M1) is used to visually check the oil level.Instead of the oil drain plug, an oil drain valve can be provided. This ball valve allows fora drain line to be easily attached when changing the gear unit oil.An oil heater might be necessary when ambient temperatures are low. The oil heaterensures that the oil is sufficiently liquid when starting up the gear unit in coldenvironments (see page 116). SEW-EURODRIVE provides the oil heater with a presetthermostat that is attached to the gear unit.

68268AXX



2

2.4.12 Sealing systemThe gear units can be supplied with different sealing systems for the input and outputshafts (see page 26).• Lip seal (standard)• Lip seal with dust protection cover (non-regreasable)• Lip seal with dust protection cover (regreasable)• Radial labyrinth seal (regreasable)The shafts are optionally available with an oil seal bushing.

2.4.13 Drywell sealing systemVertical gear units with the output shaft pointing downwards are optionally available withDrywell sealing system (see page 27). The Drywell sealing system requires that the gearunit is pressure lubricated (motor pump of shaft end pump).

2.4.14 Thermal ratingThe thermal rating needs to be checked for every gear unit. The relevant values arelisted in the selection tables (page 147 and subsequent pages).

2.4.15 CoolingIf the thermal rating of the gear unit is insufficient with natural cooling, you can chooseone of the following cooling types:• Fan (independent of direction of rotation) on the drive shaft for 2- and 3- stage gear

units (see page 98)• Axial fan on request from SEW-EURODRIVE• Integrated water cooling cover from size 180 to 210 or integrated water cooling

cartridge (see page 100 and page 101)• A combination of fan and water cooling cover or cooling cartridge• Oil supply system with oil-water heat exchanger (see page 103 or oil-air heat

exchanger (see page 106).

2.4.16 Motor connectionSEW-EURODRIVE can supply the following variants with the gear unit:• Motor adapter with elastic coupling for attaching IEC (B5) / NEMA ("C" face) motors

(see page 126). The motor adapter can optionally be designed with a fan.• Steel construction as motor swing base and base plate (see page 130): Comprises

gear unit and steel frame as well as the necessary components such as input andoutput coupling, drum or disk brake, AC motor and protection guards.

• Motor bracket with V-belt drive: Includes motor bracket, pulleys, V-belt and beltguard.

• Motor scoop, including AC motor, coupling and protection guard.

2.4.17 Backstop The gear units can be equipped with or without backstop (see page 124 / page 443).



2.4.18 Condition monitoringA variety of optional equipment is available for condition monitoring:• Pressure switch /DS

For function monitoring when pressure lubrication is used. • Temperature sensor /PT100 (see page 133):

For measuring the oil bath temperature • Temperature switch /NTB (see page 134):

For monitoring the oil bath temperature • Temperature switch /TSK (see page 135):

For temperature monitoring with oil supply systems and circulation cooling.• SEW diagnostic system /DUO (see page 136):

For monitoring the condition of the oil in the gear unit• SEW diagnostic system /DUV (see page 138):

For monitoring vibration of bearings and gears• Electrical oil level monitor on request• Speed monitoring on request• Bearing temperature sensor on request• Oil flow monitoring on requestOthers on request.

2.4.19 Very low output speedThe gear units described in this catalog cover a nominal gear ratio range of up to 400:1.With a 4-pole motor connected to the gear unit, minimum output speeds of about 4 rpmcan be reached. Lower output speeds can be achieved by a combination with frequency inverter, multi-pole motors, or with an SEW-EURODRIVE primary gear unit or gearmotor type R..., F...,K... or S... Contact SEW-EURODRIVE in this case.

2.4.20 Auxiliary drivesSEW-EURODRIVE gear units can also be delivered with an auxiliary drive (seeseparate publication "Bucket Elevator Drives" catalog). This is the standard configura-tion for 3-stage bevel-helical gear units in the gear ratio range from 28:1 to 80:1, and ismainly used for bucket elevators. Other configurations are available on request.

2.4.21 Drive packagesPredefined drive packages, for example for conveyor drives, are described on page 130.

2.4.22 Surface and corrosion protectionOn request, all gear units can be supplied with special surface protection for applicationsin extremely humid and chemically aggressive environments.For more information, see page 32.



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2.4.23 CoatingThe gear units are coated in "blue-gray" RAL 7031 according to DIN 1843. Specialpaints are available on request. The SEW protection guards included in the delivery arepainted in "signal yellow" RAL 1003.

2.4.24 Noise levelNormally, the gear unit's sound-power levels, according to ISO 8579-1, are below the50% line given in the standard.

2.4.25 Weight data/oil quantitiesPlease note that all weights shown for the gear units in this catalog are guide values anddo not include the lubricant. Refer to the dimension drawings for recommended oilquantities for the respective gear unit types. You find the exact gear unit weight in theorder-specific dimension drawing.

2.4.26 Abbreviations for optional accessoriesThe table shows the abbreviations used and what they mean.

The options are not part of the type designation except for the mounting flange, torquearm, horizontal and universal housing.

Abbrevia-tion Meaning see page

/BF Base frame page 131, page 504

/BS Backstop page 124

/BSL Torque-limited backstop

/CCV Water-cooling cover page 100, page 422

/CCT Water-cooling cartridge page 101, page 423

/F Mounting flange page 122, page 440

/FC Flange coupling page 123, page 416

/FAN Fan page 98, page 420

/FAN-ADV Fan version Advanced page 98, page 420

/ET Oil expansion tank page 93, page 410

/HH Horizontal housing page 392, page 395

/HU Universal housing page 382

/HSST Through-going input shaft page 396

/LSST Through-going output shaft page 399

/MA Motor adapter page 126, page 451

/SB Swing base page 130, page 504

/SEP Shaft end pump page 94, page 413

/T Torque arm page 121, page 439

/OAC Circulation cooling oil-air cooler with motor pump page 106, page 435

/OWC Circulation cooling oil-water cooler with motor pump page 103, page 428

/OAP Circulation cooling oil-air cooler with pressure lubrication and motor pump page 113, page 436

/OWP Circulation cooling oil-water cooler with pressure lubrication and motor pump

page 110, page 432

/ONP Pressure lubrication and motor pump page 96, page 414

/OD Oil dipstick page 92, page 500

/ODV Oil drain valve page 92, page 502

/OH Oil heater page 116, page 437

/OLG Oil level glass page 92, page 503

/VBD V-belt drives page 129


2 Input and output shaftsProduct Description and Overview of Types

2.5 Input and output shaftsThere are two types of shafts:• High-speed shaft (HSS), usually an input shaft• Low-speed shaft (LSS), usually an output shaft

2.5.1 Input shaftThe input shaft is provided with a closed keyway according to DIN 6885/T1 and a centerbore (according to DIN 332). The matching key according to DIN 6885/T1 – form A isincluded in the scope of delivery.

2.5.2 Output shaft as solid shaft with key /..SThe output shaft is provided with a closed keyway according to DIN 6885/T1 and acenter bore according to DIN 332. The scope of delivery includes a key according toDIN 6885/T1 – form B. The shaft has an insertion area with a reduced diameter tosimplify the mounting of output elements, such as a coupling hub.

65678AXX

HSS

LSS

X.F.. X.K..

LSSHSS

X.T..

LSS

HSS

61010AXX

61009AXX


2Input and output shaftsProduct Description and Overview of Types

2

2.5.3 Output shaft with smooth surface /..RThe gear units are available with a smooth output shaft to be able to install non-positiveoutput elements, such as flange couplings with a cylindrical interference fit. The shaft'sface has a center bore according to DIN 332. The insertion area with reduced diameterfacilitates the mounting of output elements.

2.5.4 Output shaft as splined solid shaft /..LThe output shaft is a splined shaft according to DIN 5480. In order to improve the guideof the output element, there is a centering in front of and behind the splined shaft. Thereare 2 threads for mounting an endplate at the front of the shaft.

64275AXX

62654AXX


2 Input and output shaftsProduct Description and Overview of Types

2.5.5 Output shaft as hollow shaft with keyway /..AThe hollow shaft is equipped with a keyway according to DIN 6885/T1 - form B. Included in the scope of delivery: Endplate with screws [1] or 2 retaining rings, andprotection cover [2]

The protection cover is dust-proof. The standard sealing system is therefore normallyused on the protection cover side.

2.5.6 Output shaft as hollow shaft with shrink disk /..HThe shrink disk is positioned on the side opposite to the machine shaft.Included in the scope of delivery: Endplate with mounting screws [1] or 2 retaining rings,shrink disk [2] and protection cover [3]

The protection cover is dust-proof. The standard sealing system is therefore normallyused on the protection cover side.

[1]

[2]

INFORMATIONFor detailed information on the geometry of the machine shaft, refer to page 400. Di-mension L14 corresponds to the effective key length.In case of a through-going machine shaft, the gear unit is delivered without endplateand protection cover. In this case, both gear unit sides are equipped with the samesealing system.

[1]

[2]

[3]

INFORMATIONFor detailed information on the geometry of the machine shaft, refer to page 402.In case of a through-going machine shaft, the gear unit is delivered without endplateand protection cover. In this case, both gear unit sides are equipped with the samesealing system.


2Input and output shaftsProduct Description and Overview of Types

2

2.5.7 Output shaft as hollow shaft with splining /..VThe output shaft is a splined shaft according to DIN 5480.Included in the scope of delivery:Endplate with screws [1] or 2 retaining rings, protection cover [2]

2.5.8 Gear unit mounting of hollow shaft gear unitsDue to the rigid connection between the machine shaft and the hollow shaft of the gearunit, constraining forces can occur on the output shaft bearing.This is why you have to observe the following points when mounting hollow shaft gearunits:• The gear unit is usually foot or flange-mounted and used as bearing point when the

machine shaft has no individual bearing or merely provides one bearing point. Youhave to provide for an accurate coaxial alignment with the bearing point.

• If the machine shaft has at least two own bearing points, the gear unit should only beconnected to the machine shaft and supported with a torque arm. Avoid foot orflange-mounted gear units to avoid overdimensioning of the bearing.

62728AXX

[1]

[2]

INFORMATIONFor detailed information on the geometry of the machine shaft, refer to page 406.

INFORMATIONNon-compliance can lead to damage to the output shaft bearing and encourages theformation of friction corrosion in the connection of the machine shaft and hollow shaftof the gear unit.


2 Overview of output shafts and gear unit mountingProduct Description and Overview of Types

2.6 Overview of output shafts and gear unit mountingThe following overview shows the output shafts and gear unit mounting for gear unittypes X.F.., X.K.. and X.T...

65993AEN

Output shaft

Hollow shaft with keywas or splining (chapter 2.5.5)

Hollow shaft with shrink disk (chapter 2.5.6)

Foot-mounted

Flange-mounted (chapter 6.2)

Shaft-mounted with torque arm(chapter 6.1)

Gear unit mountingSolid shaft with key or smooth shaft(chapter 2.5.2)

Solid shaft with splining (chapter 2.5.4)


2Overview of motor connectionProduct Description and Overview of Types

2

2.7 Overview of motor connectionThe following overview shows the motor connections for gear unit types X.F.., X.K.. andX.T...

65994AEN

Motor scoop with V-belt drive (chapter 6.6)

Base plate or swing base (chapter 6.7)

Motor scoop

Motor adapter (chapter 6.5)

X.F..

X.F..

X.F..

X.F..

X.K..

X.K..

X.K..

X.K..

X.T..

X.K..


2 Overview of sealing systemsProduct Description and Overview of Types

2.8 Overview of sealing systemsThe following sealing systems can be used:

2.8.1 Input shaft

2.8.2 Output shaft

Standard Dust-proof Dust-proofregreasable

Radial labyrinth seal(Taconite)

regreasable

Single oil seal with dust protection lip

Single lip seal with dust protection cover

Double lip seal with dust protection cover

Single lip seal with radial labyrinth seal

• Normal environment • Medium dust load with abrasive particles

• High dust load with abrasive particles

• Very high dust load with abrasive particles

65898AXX 65899AXX 65900AXX 65901AXX

[1] optional with oil seal sleeve

Standard Dust-proof Dust-proofregreasable

Radial labyrinth seal(Taconite)

regreasableSingle oil seal with dust protection lip

Single lip seal with dust protection cover

Double lip seal with dust protection cover

Single lip seal with radial labyrinth seal

• Normal environment • Medium dust load with abrasive particles

• High dust load with abrasive particles

• Very high dust load with abrasive particles

65910AXX 65911AXX 65912AXX 65913AXX

[1] optional with oil seal sleeve

[1] [1] [1] [1]

[1][1] [1] [1]


2Overview of sealing systemsProduct Description and Overview of Types

2

2.8.3 Drywell sealing systemVertical gear units with output shaft pointing downwards can be equipped with a Drywellsealing system in addition to the usual sealing. The lower bearing of the output shaft isseparated from the oil chamber by an integrated tube [1]. The bearing is grease-lubricated and has to be relubricated at regular intervals (DIN 3404 A G1/8 flat greasenipple). The oil level is lower than the upper end of the tube to prevent oil [2] from leakingat this point. Each gear unit is equipped with a Drywell sealing system with pressurelubrication (shaft end pump or motor pump) to ensure sufficient lubrication of the upperbearing and the gearing.The following figure shows a Drywell sealing system.

65675AXX

[1]

[2]

INFORMATIONThe Drywell sealing system requires a dust-proof sealing system on the output shaft.For gear units from size 220, the Drywell sealing system is only possible in combi-nation with a standard bearing on the output shaft.

Due to the lowered oil level, the gear unit might have to be equipped with an additionaloil tank. This depends on the following factors:• Gear unit size, gear unit reduction ratio• Input speed, input power• Pump size, pump capacity• Ambient temperature at startupConsult SEW-EURODRIVE for further details.


2 Overview of sealing systemsProduct Description and Overview of Types

2.8.4 Position of greasing points

Grease nipple on inspection cover (standard)Taper greasing nipples according to DIN 71412 A R1/8 are normally used on the gearunit cover in regreasable sealing systems. The greasing points are located near theinput and output shafts.

Example

Grease nipple on the side of the gear unit (option)If installation space is limited, the grease nipples can be relocated to the side of the gearunit (mounting surface F2 as standard). Flat greasing nipples according toDIN 3404 A G1/8 are used. Note the following points:• This option is used as standard for drives with fan, motor adapter, V-belt drive, and

Drywell.• The option applies to both drive and output shaft(s).

Example


2Type designationsProduct Description and Overview of Types

2

2.9 Type designations2.9.1 Gear units

The designation of the gear unit is set up as follows:

X 3 K S B 260 /HH /BGear unit mounting:/B = Foot/T = Torque arm/F = Flange

Housing type from size 260:HH = Horizontal housingHU = Universal housing

Gear unit sizes:100...320

Application:B = Bucket elevator drive

Type of output shaft:S = Solid shaft with keyR = Smooth solid shaftL = Splined solid shaftA = Hollow shaft with keywayH = Hollow shaft with shrink diskV = Splined hollow shaft

Gear unit types:F = Helical gear unitK = Bevel-helical gear unitT = Bevel-helical gear unit

Number of gear stages:2 = 2 stages3 = 3 stages4 = 4 stages

Industrial gear unit series


2 Type designationsProduct Description and Overview of Types

2.9.2 Oil supply systemsThe gear unit can be equipped with an oil supply system for cooling and lubricationpurposes.The following diagram describes the type designation of the oil supply systems.

2.9.3 Flange couplingsThe following diagram describes the type designation of flange couplings. The type codeof a coupling half is structured as follows:

O W C 020 - 0 0 /MMounting type:M = Mounted to the gear unitS = For separate installation

Option:0 = 50 Hz1 = 60 Hz9 = Special design

Mounting position:0 = M1 / M2 / M3 / M41 = M5 / M6

Size:010 ... 070

Type:C = Circulation coolingP = Pressure lubrication

Cooling medium:A = AirW = WaterN = None

Oil supply system

FC 530 / 175 S MType of centering:M = External centeringF = Internal centering

Shaft/hub connection type:S = Cylindrical interference fitK = Keyed connectionT = Conical interference fit

Bore diameter

Outer flange diameter

Flange coupling


2NameplateProduct Description and Overview of Types

2

2.10 Nameplate2.10.1 Example for gear units

The following figure shows a exemple nameplate for bevel-helical gear units.

60614AXX

Type Type designation

Nr. 1 Serial number

PK1 [kW] Operating power on the input shaft (HSS)

MK2 [Nm] Gear unit output torque

n1 [min-1] Input speed (HSS)

n2 [1/min] Output speed (LSS)

norm. Standard operating point

min. Operating point at minimum speed

max. Operating point at maximum speed

i Exact gear unit reduction ratio

FS Service factor

FR1 [N] Actual overhung load acting on the input shaft

FR2 [N] Actual overhung load acting on the output shaft

FA1 [N] Actual axial load acting on the input shaft

FA2 [N] Actual axial load acting on the output shaft

Mass [kg] Weight of the gear unit

Qty of greasing points Number of regreasing points

Fans Number of installed fans

Oil grade and viscosity class / oil volume

Year Year of manufacture

IM Mounting position and mounting surface

SEW-EURODRIVESEW-EURODRIVE Bruchsal / Germany

Type

Nr. 1

PK1

norm. min. max.

MK2

n1

n2

Operation instruction have to be observed!

Made in Germany

i

FS

FR1

FR2

FA1

1 :

[N]

[N]

[N]

[N]FA2

[kg]

Year

Mass

[kW]

[Nm]

[1/min]

[1/min]

Qty of greasing points Fans

X3KS190/B

180

43300

1480

37.9

36

43300

296

7.6

180

43300

1480

37.9

2

CLP HC460 - Synthetic Oil - 79 ltr. 2008

1340

0

0

0

0

1,5

01.1101687801.0001.06 / 66.1234567812

0

40.61

1457

773

9.10

IM:M1-F1


2 Coating and surface protection systemsProduct Description and Overview of Types

2.11 Coating and surface protection systemsGear units are available with surface protection OS1, OS2, and OS3.The following table provides an overview of coating and surface protection systems.

SEW OS 1Low environmental impact

OS 2Medium environmental impact

OS 3High environmental impact

Used as surface protection with typical ambient conditions Corrosion categories DIN EN ISO 12944-2

Suited for environments prone to condensation and atmospheres with low humidity or contamina-tion, such as outdoor applications under roof or with protection, unheated buildings where condensation can build up.According to corrosivity category C2 (low)

Suited for environments with high humidity or moderate atmospheric contamination, such as applications outdoors subject to direct weathering.According to corrosivity category C3 (moderate)

Suited for environments with high humidity and occasionally severe atmospheric and chemical con-tamination. Occasionally acidic or caustic wet cleaning. Also for applications in coastal areas with moderate salt load.According to corrosivity category C4 (high)

Sample applications • Systems in saw mills• Agitators and mixers

• Applications in gravel plants• Cableways

• Port cranes• Sewage treatment plants• Mining applications

Condensation testISO 6270 120 h 120 h 240 h

Salt spray test ISO 7253 - 240 h 480 h

Color top coat1) RAL 7031 RAL 7031 RAL 7031

Color according to RAL yes yes yes

Uncoated parts: shaft end/flanges Hand perspiration and water repellent anticorrosion agent applied at the factory for external preservation.

1) Standard color

INFORMATIONSheet metal parts (e.g. protection covers, fan guard) are painted in RAL 1003. Theycan be designed as follows:• Standard: Powder coating according to corrosion protection OS3.• Optional: Liquid coating according to OS1 to OS3


2Storage and transport conditionsProduct Description and Overview of Types

2

2.12 Storage and transport conditionsThe gear units can be provided with the following protection and packaging typesdepending on the storage and transport conditions.

2.12.1 Internal corrosion protectionStandard corrosion protection

After the test run, the test oil fill is drained out of the gear unit. The remaining oil filmprotects the gear unit against corrosion for a limited period of time.

Long-term corrosion protectionAfter the test run, the test oil fill is drained out of the gear unit and the interior space isfilled will a vapor phase inhibitor. The breather filter is replaced by a screw plug andenclosed with the gear unit.

2.12.2 Exterior corrosion protectionIn general, the following measures are taken for exterior corrosion protection:• Corrosion protection is applied to bare, non-painted functional surfaces of shafts,

flanges, mounting and foot surfaces on the gear unit. Remove it only using anappropriate solvent which is not harmful to the oil seal.

• Small spare parts and loose pieces, such as bolts, nuts, etc., are packed in corrosionprotection plastic bags (VCI corrosion protection bags).

• Threaded holes and blind holes are covered by plastic plugs.

2.12.3 PackagingStandard packaging

The gear unit is delivered on a pallet without cover.Application: Land transport

Long-term packagingThe gear unit is delivered in a wooden box that is also appropriate for sea transport. Application: Sea transport and/or for long-term storage

INFORMATION• If the gear unit is stored longer than 6 months, you must check the protective

coating of unpainted areas as well as the paint at regular intervals. Areas in whichthe protective coating and/or paint has been damaged may have to be repainted.


2 Storage and transport conditionsProduct Description and Overview of Types

2.12.4 Storage conditions

INFORMATION• During storage up to startup, the gear unit must be stored in a shock-free manner

to prevent damage to the anti-friction bearing races.• The output shaft must be rotated at least one full rotation every six months so that

the position of the roller elements in the bearings of the input and output shaftschanges.

INFORMATIONThe gear units are delivered without an oil fill; different protection systems are requireddepending on the storage period and storage conditions as shown in the table below.

Corrosion protection + packaging Storage location Storage duration

Standard corrosion protection+

standard packaging

With roof, enclosed at constant temperature and atmospheric humidity (5 °C < ϑ < 60 °C, < 50% relative atmospheric humidity).No sudden temperature fluctuations. Controlled ventilation with

filter (free from dust and dirt). Protected against aggressive vapors and shocks.

Max. 6 months with intact surface corrosion protection

Long-term corrosion protection:

+standard packaging

With roof, enclosed at constant temperature and atmospheric humidity (5 °C < ϑ < 60 °C, < 50% relative atmospheric humidity).No sudden temperature fluctuations. Controlled ventilation with

filter (free from dust and dirt). Protected against aggressive vapors and shocks.

Max. 3 years with regular inspection and checking for intactness.

Long-term corrosion protection:

+long-term packaging

With roof, protected against rain and shocks. Max. 3 years with regular inspection and checking for intactness.

INFORMATIONIf stored in tropical zones, provide for sufficient protection against insect damage.Contact SEW-EURODRIVE for differing specifications.

Documents

2 Product Description and Overview of Types · 2014. 8. 2. · 14 Catalog – Helical and Bevel-Helical X.. Series Gear Units 2 General information Product Description and Overview