2 product description and overview of types...product description and overview of types 2 2.3 unit...

Catalog – GK2004 9

2General informationProduct Description and Overview of Types

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2 Product Description and Overview of Types2.1 General information

Power and torque The details on power and torque given in the catalog refer to mounting position M1 andsimilar mounting positions, where the input gear stage does not completely run underoil. In addition, the gearmotors are assumed to be standard versions with standardlubrication and under normal ambient conditions.

Noise levels The noise levels of all SEW gear units are well within the maximum permitted noiselevels set forth in the VDI guideline 2159 for gear units and EN 60034 for motors.

Coating SEW gear units are painted with "blue/gray"/ machine paint RAL 7031 as per DIN 1843as standard. Special coatings are available on request.

Surface and cor-rosion protection

If required, all SEW gear units can also be supplied with special surface protection forapplications in extremely humid and chemically aggressive environments.

Weights Please note that all weights shown in the catalog exclude the oil fill for the gear units.The weight varies according to gear unit design and gear unit size. The lubricant fill isdependent on the mounting position, and consequently it is impossible to make anygenerally valid statements. Please refer to "Lubricants" in the "Design and OperatingNotes" section for recommended lubricant fill quantities depending on the mountingposition. The exact weight is given in the order confirmation.

Multi-stage gear units

You can achieve particularly low output speeds by using multi-stage gear units. Thisinvolves mounting a helical gear unit on the input end as a second gear unit.

When doing this, it is necessary to limit the motor power depending on the maximumpermitted output torque of the gear unit.

Reduced backlash version

Helical, parallel shaft helical and helical-bevel gear units with reduced backlash areavailable as of gear unit size 37. The circumferential backlash of these gear units isconsiderably less than that of the standard versions so that positioning tasks can besolved with great precision. The circumferential backlash is specified in angular minutes[ ’] in the technical data. The dimension sheets for the standard versions are applicable.

NOCO® fluid for protection against contact corrosion

As standard, all shaft-mounted gear units are supplied with NOCO® fluid, a paste thatprevents contact corrosion. Use this paste in accordance with the instructions in the gearunit operating instructions. It facilitates service and stripping down jobs.

NOCO® fluid is food grade according to USDA-H1. You can tell that NOCO® fluid is afood grade oil by the USDA-H1 identification label on its packaging.

10 Catalog – GK2004

2 General informationProduct Description and Overview of Types

RM gear units RM gear units are a special type of helical gear units with an extended output bearinghub. They are specially designed for agitating applications and can be used in applica-tions subject to high overhung and axial loads as well as flexural torque. The remainingdata correspond to the standard helical gear units. You can find special project planningnotes for RM gearmotors in the "Project Planning for Gear Units/RM gear units" section.

International markets

SEW-EURODRIVE is a member of the AGMA (American Gear Manufacturers’Association), and as such, all its gear units conform to AGMA specifications.

Components on the input side

The following components on the input side are available for SEW gear units:

• Input covers with input shaft extension, optionally with

• Centering shoulder• Backstop• Motor mounting platform

• Adapter

• for mounting IEC or NEMA motors with the option of a backstop• for mounting servomotors with a square flange• with torque limiting safety couplings and speed or slip monitor• with hydraulic centrifugal coupling, also with disc brake or backstop

Swing base Swing bases for motors are drive units comprising a helical-bevel gear unit, a hydrauliccentrifugal coupling and an electric motor. The complete arrangement is mounted to arigid mounting rail.

Optionally with

• Torque arm

• Mechanical thermal monitoring device

• Proximity-type thermal monitoring device


2SEW gear unit versionsProduct Description and Overview of Types

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2.2 SEW gear unit versions

Helical gear units The following versions of helical gear units can be supplied:

52180AXX

R..Foot-mounted helical gear unit

RF..Flange-mounted helical gear unit

R..F Foot and flange-mounted helical gear unit

RM..Flange-mounted helical gear unit with extended bearing hub

RX..Single-stage foot-mounted helical gear unit

RXF..Single-stage flange-mounted helical gear unit


2 SEW gear unit versionsProduct Description and Overview of Types

Parallel shaft helical gear units

The following types of parallel shaft helical gear units can be supplied:

52182AXX

F..Foot-mounted parallel shaft helical gear unit

FA..B Foot-mounted parallel shaft helical gear unit with hollow shaft

FV..B Foot-mounted parallel shaft helical gear unit with hollow shaft and splined hollow shaft to DIN 5480

FH..B Foot-mounted parallel shaft helical gear unit with hollow shaft and shrink disc

FF..Parallel shaft helical gear unit in B5 flange-mounted version

FAFParallel shaft helical gear unit in B5 flange-mounted version with hollow shaft

FVFParallel shaft helical gear unit in B5 flange-mounted version with hollow shaft and splined hollow shaft to DIN 5480



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52184AXX

FHF..Parallel shaft helical gear unit in B5 flange-mounted version with hollow shaft and shrink disc

FA..Parallel shaft helical gear unit with hollow shaft

FV..Parallel shaft helical gear unit with hollow shaft and splined hollow shaft to DIN 5480

FH..Parallel shaft helical gear unit with hollow shaft and shrink disc

FT..Parallel shaft helical gearmotor with hollow shaft and TorqLOC® hollow shaft mounting system

FAZ..Parallel shaft helical gear unit in B14 flange-mounted version with hollow shaft

FVZ..Parallel shaft helical gear unit in B14 flange-mounted version with hollow shaft and splined hollow shaft to DIN 5480

FHZ..Parallel shaft helical gear unit in B14 flange-mounted version with hollow shaft and shrink disc



Helical-bevel gear units

The following types of helical-bevel gear units can be supplied:

52186AXX

K..Foot-mounted helical-bevel gear unit

KA..BFoot-mounted helical-bevel gear unit with hollow shaft

KV..BFoot-mounted helical-bevel gear unit with hollow shaft and splined hollow shaft to DIN 5480

KH..B Foot-mounted helical-bevel gear unit with hollow shaft and shrink disc

KF..Helical-bevel gear unit in B5 flange-mounted version

KAF..Helical-bevel gear unit in B5 flange-mounted-version with hollow shaft

KVF..Helical-bevel gear unit in B5 flange-mounted version with hollow shaft and splined hollow shaft to DIN 5480



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52187AXX

KHF..Helical-bevel gear unit in B5 flange-mounted version with hollow shaft and shrink disc

KA..Helical-bevel gear unit with hollow shaft

KV..Helical-bevel gear unit with hollow shaft and splined hollow shaft to DIN 5480

KH..Helical-bevel gear unit with hollow shaft and shrink disc

KT..Helical-bevel gearmotor with hollow shaft and TorqLOC® hollow shaft mounting system

KAZ..Helical-bevel gear unit in B14 flange-mounted version with hollow shaft

KVZ..Helical-bevel gear unit in B14 flange-mounted version with hollow shaft and splined hollow shaft to DIN 5480

KHZ..Helical-bevel gear unit in B14 flange-mounted version with hollow shaft and shrink disc



Helical-worm gear units

The following types of helical-worm gear units can be supplied:

52188AXX

S..Foot-mounted helical-worm gear unit

SF..Helical-worm gear unit in B5 flange-mounted version

SAF..Helical-worm gear unit in B5 flange-mounted version with hollow shaft

SHF..Helical-worm gear unit in B5 flange-mounted version with hollow shaft and shrink disc



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52189AXX

SA..Helical-worm gear unit with hollow shaft

SH..Helical-worm gear unit with hollow shaft and shrink disc

ST..Helical-worm gearmotor with hollow shaft and TorqLOC® hollow shaft mounting system

SAZ..Helical-worm gear unit in B14 flange-mounted version with hollow shaft

SHZ..Helical-worm gear unit in B14 flange-mounted version with hollow shaft and shrink disc



Components on the input side

52191AXXFigure 1: Overview of components on the input side

AD Input cover AR/W Adapter with torque limiting coupling and speed monitoring

AD/ZR Input shaft assembly with centering shoulder

AR/W1)

1) Only in conjunction with VARIBLOC® variable speed gear unit

Adapter with torque limiting coupling and slip monitoring

AD/RS Input shaft assembly with backstop /W Speed monitor

AD/P Input shaft assembly with motor mounting platform

/WS Slip monitor

AM Adapter for mounting IEC/NEMA Motors

AT Adapter with hydraulic centrifugal coupling

AQ Adapter for mounting servomotors AT/RS Adapter with hydraulic centrifugal coupling and backstop

AR Adapter with torque limiting coupling AT/BM(G) Adapter with hydraulic centrifugal coupling and disc brake


2Unit designations for gear units and optionsProduct Description and Overview of Types

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2.3 Unit designations for gear units and options

Helical gear units

RX.. Single-stage foot-mounted

RXF.. Single-stage flange-mounted

R.. Foot-mounted

R..F Foot and flange-mounted

RF.. Flange-mounted

RM.. Flange-mounted with extended bearing hub

Parallel shaft helical gear units

F.. Foot-mounted

FA..B Foot-mounted and hollow shaft

FH..B Foot-mounted and hollow shaft with shrink disc

FV..B Foot-mounted and splined hollow shaft to DIN 5480

FF.. B5 flange-mounted

FAF.. B5 flange-mounted and hollow shaft

FHF.. B5 flange-mounted and hollow shaft with shrink disc

FVF.. B5 flange-mounted and splined hollow shaft to DIN 5480

FA.. Hollow shaft

FH.. Hollow shaft with shrink disc

FT.. Hollow shaft with TorqLOC® hollow shaft mounting system

FV.. Splined hollow shaft to DIN 5480

FAZ.. B14 flange-mounted and hollow shaft

FHZ.. B14 flange-mounted and hollow shaft with shrink disc

FVZ.. B14 flange-mounted and splined hollow shaft to DIN 5480

Helical-bevel gear units

K.. Foot-mounted

KA..B Foot-mounted and hollow shaft

KH..B Foot-mounted and hollow shaft with shrink disc

KV..B Foot-mounted and splined hollow shaft to DIN 5480

KF.. B5 flange-mounted

KAF.. B5 flange-mounted and hollow shaft

KHF.. B5 flange-mounted and hollow shaft with shrink disc

KVF.. B5 flange-mounted and splined hollow shaft to DIN 5480

KA.. Hollow shaft

KH.. Hollow shaft with shrink disc

KT.. Hollow shaft with TorqLOC® hollow shaft mounting system

KV.. Splined hollow shaft to DIN 5480


2 Unit designations for gear units and optionsProduct Description and Overview of Types

KAZ.. B14 flange-mounted and hollow shaft

KHZ.. B14 flange-mounted and hollow shaft with shrink disc

KVZ.. B14 flange-mounted and splined hollow shaft to DIN 5480

Helical-worm gear units

S.. Foot-mounted

SF.. B5 flange-mounted

SAF.. B5 flange-mounted and hollow shaft

SHF.. B5 flange-mounted and hollow shaft with shrink disc

SA.. Hollow shaft

SH.. Hollow shaft with shrink disc

ST.. Hollow shaft with TorqLOC® hollow shaft mounting system

SAZ.. B14 flange-mounted and hollow shaft

SHZ.. B14 flange-mounted and hollow shaft with shrink disc

R, F, K gear unit option

/R Reduced backlash

K and S gear unit option

/T With torque arm

F gear unit option

/G With rubber buffer


2Unit designations for components on the input sideProduct Description and Overview of Types

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2.4 Unit designations for components on the input side

Adapter

AM.. Adapter for mounting IEC/NEMA motors

../RS ..and backstop

AQ.. Adapter for mounting servomotors

AQA with keyway

AQH with clamping ring hub

AR.. Adapter with torque limiting coupling

../W ..and speed monitoring

../WS ..and slip monitoring

AT .. Adapter with hydraulic centrifugal coupling

../RS ..and backstop

../BM(G) ..and disc brake

../HF ..with lockable manual brake release

../HR ..with automatic manual brake disengaging

Input cover

AD .. Input cover

../P ..with motor mounting platform

../RS ..with backstop

../ZR ..with centering shoulder

2.5 Unit designations for the swing base

MK.. Swing base

../MTS Mechanical thermal monitoring unit

../BTS Proximity-type thermal monitoring unit

../T Torque arm


2 Sample unit designation of a gear unitProduct Description and Overview of Types

2.6 Sample unit designation of a gear unit

The unit designation of the gear unit starts from the component on the output end. Forinstance, a multi-staged helical-bevel gear unit with a hydraulic centrifugal coupling hasthe following unit designation:

Other examples:

• RF 97 AD 3 /P

– Gear unit type: RF flange-mounted helical gear unit– Gear unit size: 97– Gear unit component on the input side: AD3/P Input shaft assembly with motor

mounting platform size 3

• FH 47 /R /G AQH 100/3

– Gear unit type: FH parallel shaft helical gear unit with hollow shaft and shrink disc– Gear unit size: 47– Gear unit option: /R Reduced backlash version– Gear unit option: /G Rubber buffer– Gear unit component on the input side: AQH 100/3 adapter for mounting servo-

motors with clamping ring hub size 100/3

K 107 R 87 AT 421 /BMG

Gear unit component option on input side

Size of gear unit component on input side

Type of gear unit component on input side

Gear unit size

2nd gear unitGear unit type

Gear unit size1st gear unit

Gear unit type

04669AXXFigure 2: Sample unit designation


2Explosion protection to ATEXProduct Description and Overview of Types

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2.7 Explosion protection to ATEX

Scope EU directive 94/9/EC or ATEX lays down new regulations for explosion protection in alltypes of devices for the European market. This directive applies to gearmotors andmotors as well. As of July 1, 2003, EU directive 94/9/EC will apply without restrictions tothe use of gearmotors and motors within the European Union. Other Europeancountries, such as Switzerland, have since come into line with this regulation.

Scope SEW-EURODRIVE now only supplies explosion-proof gear units in accordance with thecorresponding ATEX directive. The same applies to explosion-proof options andaccessories.

Depending on their features and dimensions, explosion-proof gear units are suitable for:

• Potentially explosive atmospheres (gas), zone 1 or 2.

• Potentially explosive atmospheres (dust), zone 21 or 22.

SEW-EURODRIVE offers gearmotors and motors of categories

• II2G

• II2D

• II3GD

• II3D

for operation in zones 1, 21, 2 and 22.

Stand-alone gear units with components on the input side are available in the followingcategories:

Gear units with AM and AWA adapter and input shaft assembly AD

• II2GD

for operation in zones 1, 21, 2 and 22

Gear unit with adapter AR

• II3GD

for operation in zones 2 and 22

AQH and AT adapters as well as drives on a swing base are not available complyingwith ATEX directive.

Other documents The "Explosion-Proof Drives according to EU Directive 94/9/EC" system description andthe volume of the same name in the "Drive Engineering - Practical Implementation"series provide you with basic information about this topic.

Please refer to the "Explosion-Proof Drives" catalog and the "Variable SpeedGearmotors" catalog for detailed information on explosion-proof products from SEW-EURODRIVE.


2 Corrosion and surface protectionProduct Description and Overview of Types

2.8 Corrosion and surface protection

General information

SEW-EURODRIVE offers various optional protective measures for operating gear unitsunder special ambient conditions.

In addition, special optional protective measures for the output shafts are also possible.

Surface protection OS

Instead of the standard surface protection, the gear units are optionally available withexterior surface protection OS1, OS2 or OS3. The special procedure Z can also beperformed in addition to OS1, OS2 and OS3. The special procedure Z means that largesurface recesses are sprayed with a rubber filling prior to painting.

Special protec-tive measures

Gear unit output shafts can be treated with special optional protective measures foroperation subject to severe environmental pollution or in particularly demandingapplications.

Surface protection

Structure of coats Coat thick-ness [µm]

Suitable for

Standard 1 × dip priming1 × one-pack topcoat ca. 50-70

• Normal ambient conditions• Relative humidity below 90 %• Surface temperature up to max. 120 °C• Corrosivity category C11)

1) according to DIN EN ISO 12 944-2

OS1

1 × dip priming1 × two-packbase coat1 × two-packvarnish

ca. 120-150

• Low environmental pollution• Relative humidity max. 95 %• Surface temperature up to max. 120 °C• Corrosivity category C21)

OS2


ca. 170-210

• Medium environmental pollution• Relative humidity up to 100 %• Surface temperature up to max. 120 °C• Corrosivity category C31)

OS3


ca. 220-270

• High environmental pollution• Relative humidity up to 100 %• Surface temperature up to max. 120 °C• Corrosivity category C41)

Action Protection principle Suitable for

Kanisil coating Surface coating of the contact surface of the oil seal

Severe environmental pollution and in conjunction with FKM oil seal (Viton)

Stainless steel output shaft Surface protection through high-quality material

Particularly exacting applications in terms of exterior surface protection


2Corrosion and surface protectionProduct Description and Overview of Types

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NOCO® fluid As standard, SEW-EURODRIVE supplies NOCO® fluid corrosion protection andlubricant with every hollow shaft gear unit. Use NOCO® fluid when installing hollow shaftgear units. This will reduce any possible fretting corrosion and facilitate possible removallater on.

NOCO® fluid is also suitable for protecting machined metal surfaces that do not havecorrosion protection. These include parts of shaft ends or flanges. You can also orderlarger quantities of NOCO® fluid from SEW-EURODRIVE.

NOCO® fluid is food grade according to USDA-H1. You can tell that NOCO® fluid is afood grade oil by the USDA-H1 identification label on its packaging.


2 Extended storageProduct Description and Overview of Types

2.9 Extended storage

Version You can also order gear units prepared for "extended storage." In this case, a VCI(volatile corrosion inhibitor) is added to the lubricant in these gear units. Unless specifiedotherwise, the gear unit will be provided with exterior surface protection OS1. You canorder OS2 or OS3 instead of OS1.

Oil fill Note the following points concerning the oil fill:

• Mineral oil (CLP) and synthetic oil (CLP HC): Gear units will be supplied with anoil fill according to the mounting position (M1 ... M6) and are ready for operation.

• Synthetic oil (CLP PG): In some cases, gear units are supplied with an increasedoil level. Before startup, adjust the oil level to match the required mounting position(M1 ... M6). The oil fill quantities for gear units are specified in Sec. 8.1 "Lubricants."

Storage-conditions

Comply with the storage conditions specified in the following table for extended storage:

Surface protection Suitable for

OS1 Low environmental pollution

OS2 Medium environmental pollution

OS3 High environmental pollution

The gear units must remain tightly sealed until taken into operation to prevent the VCIcorrosion protection agent from evaporating.

Always check the oil level before you take the gear unit into operation!

Climate zone Packaging1) Storage location Storage time

Temperate (Europe, USA, Canada, China and Russia, excluding tropi-cal zones)

Packed in containers, with desiccant and moisture indicator sealed in the

plastic wrap.

Under roof, protected against rain and snow, no shock loads.

Up to three years with regular checks on the packaging and moisture indicator (rel. atmo-

spheric humidity < 50 %).

Open

Under roof, enclosed at constant temperature and atmospheric humidity (5 °C < ϑ < 60 °C, < 50 %

relative atmospheric humidity).No sudden temperature fluctuations and con-trolled ventilation with filter (free from dirt and

dust). No aggressive vapors and no shock loads.

Two years or more given regular inspections. Check for cleanliness and mechanical

damage as part of the inspec-tion. Check corrosion protec-

tion.

Tropical (Asia, Africa, Central and South Amer-ica, Australia, New Zealand excluding temper-ate zones)

Packed in containers, with desiccant and moisture indicator sealed in the

plastic wrap.Protected against insect damage and mildew by

chemical treatment.

Under roof, protected against rain, no shock loads.

Up to three years with regular checks on the packaging and moisture indicator (rel. atmo-

spheric humidity < 50 %).

Open

Under roof, enclosed at constant temperature and atmospheric humidity (5 °C < ϑ < 60 °C, < 50 %

relative atmospheric humidity).No sudden temperature fluctuations and con-trolled ventilation with filter (free from dirt and

dust). No aggressive vapors and no shock loads. Protection against insect damage.

Two years or more given regular inspections. Check for cleanliness and mechanical

damage as part of the inspec-tion. Check corrosion protec-

tion.

1) Packaging must be performed by an experienced company using the packaging materials that have been expressly specified for theparticular application.

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