SEW-Eurodrive SPIROPLAN W R 7 Series User manual

Drive Technology \ Drive Automation \ System Integration \ Services
Assembly and Operating Instructions
Explosion-Proof Gear Units
R..7, F..7, K..7, S..7, SPIROPLAN
®
W Series
Edition 09/2012 20050542 / EN

SEW-EURODRIVE—Driving the world

Assembly and Operating Instructions – Explosion-Proof Gear Units 3
Contents
Contents
1 General Information ............................................................................................ 6
1.1 How to use this documentation................................................................... 6
1.2 Structure of the safety notes ....................................................................... 6
1.3 Rights to claim under warranty ................................................................... 7
1.4 Exclusion of liability..................................................................................... 7
1.5 Copyright..................................................................................................... 7
1.6 Product names and trademarks.................................................................. 7
2 Safety Notes ........................................................................................................ 8
2.1 Preliminary information ............................................................................... 8
2.2 General information .................................................................................... 8
2.3 Target group ............................................................................................... 9
2.4 Designated use ........................................................................................... 9
2.5 Other applicable documentation ............................................................... 10
2.6 Transport/storage...................................................................................... 10
2.7 Installation/assembly................................................................................. 10
2.8 Startup/operation ...................................................................................... 10
2.9 Inspection/maintenance ............................................................................ 10
3 Check Lists ........................................................................................................ 11
3.1 Before startup ........................................................................................... 11
3.2 During startup ........................................................................................... 12
4 Gear Unit Structure ........................................................................................... 13
4.1 Basic design of helical gear units.............................................................. 13
4.2 Basic structure of parallel shaft helical gear units..................................... 14
4.3 Basic structure of helical-bevel gear units ................................................ 15
4.4 Basic design of helical-worm gear units.................................................... 16
4.5 Basic design of SPIROPLAN®W10-W30 gear units ................................ 17
4.6 Basic design of SPIROPLAN®W37 gear units......................................... 18
4.7 Nameplate and type designation .............................................................. 19
5 Mechanical Installation..................................................................................... 21
5.1 Required tools/resources .......................................................................... 21
5.2 Installation requirements........................................................................... 22
5.3 Installing the gear unit............................................................................... 23
5.4 Gear unit with solid shaft........................................................................... 31
5.5 Gear units and gearmotors in category II2GD .......................................... 34
5.6 Torque arms for shaft-mounted gear units................................................ 36
5.7 Shaft-mounted gear units with keyway or splined hollow shaft................. 39
5.8 Shaft-mounted gear units with shrink disk ................................................ 46
5.9 Shaft-mounted gear units with TorqLOC®................................................ 50
5.10 Installing the cover .................................................................................... 57
5.11 Coupling of AM adapter ............................................................................ 59
5.12 Coupling of AQ adapter ............................................................................ 63
5.13 Adapter with a torque limiting coupling AR ............................................... 65
5.14 AD input shaft assembly ........................................................................... 67

4Assembly and Operating Instructions – Explosion-Proof Gear Units
Contents
6 Startup................................................................................................................ 73
6.1 Checking the oil level ................................................................................ 74
6.2 Measuring the surface and oil temperature .............................................. 75
6.3 Pseudo-leakage at shaft seals.................................................................. 76
6.4 Helical-worm and SPIROPLAN®W gear units ......................................... 76
6.5 Helical/parallel shaft helical/helical-bevel gear units................................. 77
6.6 Gear units with backstop........................................................................... 77
6.7 Speed monitoring...................................................................................... 78
6.8 Installation and adjustment of the WEX speed monitor ............................ 78
6.9 Installation of the voltage encoder ............................................................ 82
7 Inspection/Maintenance ................................................................................... 84
7.1 Preliminary work regarding gear unit inspection/maintenance ................. 84
7.2 Inspection/maintenance intervals.............................................................. 86
7.3 Lubricant change intervals ........................................................................ 86
7.4 Inspection/maintenance for the AL / AM / AQ. / EWH adapter ................. 87
7.5 AR adapter................................................................................................ 87
7.6 Inspection/maintenance for the AD input shaft assembly ......................... 91
7.7 Inspection/maintenance for the gear unit.................................................. 92
8 Mounting Positions......................................................................................... 109
8.1 Designation of the mounting positions .................................................... 109
8.2 Churning losses ...................................................................................... 110
8.3 Mounting positions of SPIROPLAN®gear units...................................... 110
8.4 Key.......................................................................................................... 110
8.5 Helical gearmotors R .............................................................................. 111
8.6 Helical gearmotors RX ............................................................................ 114
8.7 Parallel-shaft helical gearmotors F ......................................................... 116
8.8 Helical-bevel gearmotors K..................................................................... 119
8.9 Helical-worm gearmotors S..................................................................... 124
8.10 SPIROPLAN®W gearmotors.................................................................. 130
9 Technical Data................................................................................................. 136
9.1 Extended storage.................................................................................... 136
9.2 Lubricants ............................................................................................... 137
10 Malfunctions .................................................................................................... 141
10.1 Gear unit ................................................................................................. 142
10.2 AM / AQ. / AL / EWH adapter ................................................................. 143
10.3 AD input shaft assembly ......................................................................... 143
10.4 Adapter with a torque limiting coupling AR ............................................. 143
10.5 Customer service .................................................................................... 144
10.6 Disposal .................................................................................................. 144

Assembly and Operating Instructions – Explosion-Proof Gear Units 5
Contents
11 Declarations of Conformity ............................................................................ 145
11.1 Gear units in category 2G and 2D with AM / AQA / AL / AD / AR adapter.. 145
11.2 Gear units in category 3G and 3D with AR adapter............................... 146
12 Address List .................................................................................................... 148
Index................................................................................................................. 160

6Assembly and Operating Instructions – Explosion-Proof Gear Units
1How to use this documentation
General Information
1 General Information
1.1 How to use this documentation
The documentation is an integral part of the product and contains important information
on operation and service. The documentation is written for all employees who assemble,
install, startup, and service this product.
The documentation must be accessible and legible. Make sure that persons responsible
for the system and its operation, as well as persons who work independently on the unit,
have read through the documentation carefully and understood it. If you are unclear
about any of the information in this documentation, or if you require further information,
contact SEW-EURODRIVE.
1.2 Structure of the safety notes
1.2.1 Meaning of the signal words
The following table shows the grading and meaning of the signal words for safety notes,
notes on potential risks of damage to property, and other notes.
1.2.2 Structure of the section-related safety notes
Section-related safety notes do not apply to a specific action, but to several actions per-
taining to one subject. The used symbols indicate either a general or a specific hazard.
This is the formal structure of a section-related safety note:
1.2.3 Structure of the embedded safety notes
Embedded safety notes are directly integrated in the instructions just before the descrip-
tion of the dangerous action.
This is the formal structure of an embedded safety note:
•SIGNAL WORD Nature and source of danger.
Possible consequence(s) if disregarded.
– Measure(s) to avoid the danger.
Signal word Meaning Consequences if disregarded
DANGER Imminent danger Severe or fatal injuries
WARNING Possible dangerous situation Severe or fatal injuries
CAUTION Possible dangerous situation Minor injuries
NOTICE Possible damage to property Damage to the drive system or its
environment
NOTE ON
EXPLOSION
PROTECTION
Important note on explosion
protection
Suspension of explosion protection and
resulting hazards
INFORMATION Useful information or tip:
Simplifies the handling of the
drive system.
SIGNAL WORD
Nature and source of danger.
Possible consequence(s) if disregarded.
• Measure(s) to avoid the danger.

Assembly and Operating Instructions – Explosion-Proof Gear Units 7
1
Rights to claim under warranty
General Information
1.3 Rights to claim under warranty
A requirement of fault-free operation and fulfillment of any rights to claim under limited
warranty is that you adhere to the information in the documentation. Read the documen-
tation before you start working with the unit!
1.4 Exclusion of liability
You must comply with the information contained in this documentation to ensure safe
operation of the Explosion-proof gear unit series R..7, F..7, K..7, S..7, SPIROPLAN®W
units and to achieve the specified product characteristics and performance require-
ments. SEW-EURODRIVE assumes no liability for injury to persons or damage to equip-
ment or property resulting from non-observance of the documentation. In such cases,
any liability for defects is excluded.
1.5 Copyright
© 2012 - SEW-EURODRIVE. All rights reserved.
Copyright law prohibits the unauthorized duplication, modification, distribution, and use
of this document, in whole or in part.
1.6 Product names and trademarks
The brands and product names contained within this publication are trademarks or
registered trademarks of the titleholders.

8Assembly and Operating Instructions – Explosion-Proof Gear Units
2Preliminary information
Safety Notes
2 Safety Notes
The following basic safety notes must be read carefully to prevent injury to persons and
damage to property. The operator must ensure that the basic safety notes are read and
adhered to. Make sure that persons responsible for the system and its operation, as well
as persons who work independently on the unit, have read through the operating instruc-
tions carefully and understood them. If you are unclear about any of the information in
this documentation or if you require further information, please contact SEW-
EURODRIVE.
2.1 Preliminary information
The following safety notes are primarily concerned with the use of the following compo-
nents: Explosion-proof gear unit series R..7, F..7, K..7, S..7, SPIROPLAN®W. If using
gearmotors, please also refer to the safety notes in the corresponding operating instruc-
tions for:
• Gear unit
Also observe the supplementary safety notes in the individual sections of this documen-
tation.
2.2 General information
Removing the required protection cover or the housing without authorization, improper
use as well as incorrect installation or operation may result in severe injuries to persons
or damage to property.
This documentation provides additional information.
WARNING
During operation, the motors and gearmotors can have live, bare (in the event of open
connectors/terminal boxes) and movable or rotating parts as well as hot surfaces, de-
pending on their enclosure.
Severe or fatal injuries.
• All work related to transportation, storage, installation, assembly, connection,
startup, maintenance and repair may only be carried out by qualified personnel, in
strict observance of:
– The relevant detailed operating instructions
– The warning and safety signs on the motor/gearmotor
– All other project planning documents, operating instructions and wiring dia-
grams related to the drive
– The specific regulations and requirements for the system
– The national/regional regulations governing safety and the prevention of acci-
dents
• Never install damaged products
• Immediately report any damage to the shipping company

Assembly and Operating Instructions – Explosion-Proof Gear Units 9
2
Target group
Safety Notes
2.3 Target group
Any mechanical work may only be performed by adequately qualified personnel. Quali-
fied staff in the context of this documentation are persons familiar with the design, me-
chanical installation, troubleshooting and servicing of the product who possess the fol-
lowing qualifications:
• Training in mechanical engineering, e.g. as a mechanic or mechatronics technician
(final examinations must have been passed).
• They are familiar with these operating instructions.
Any electronic work may only be performed by adequately qualified electricians. Quali-
fied electricians in the context of this documentation are persons familiar with electrical
installation, startup, troubleshooting and servicing of the product who possess the fol-
lowing qualifications:
• Training in electrical engineering, e.g. as an electrician, electronics or mechatronics
technician (final examinations must have been passed).
• They are familiar with these operating instructions.
All work in further areas of transportation, storage, operation and waste disposal must
only be carried out by persons who are trained appropriately.
All qualified personnel must wear appropriate protective clothing.
2.4 Designated use
The gear units are intended for industrial systems and may only be used in accordance
with the information provided in SEW-EURODRIVE's technical documentation and the
information given on the nameplate. They meet the requirements set forth in Directive
94/9/EC and comply with the applicable standards and regulations.
The gear units are components for the installation in machines and plants according to
the 2006/42/EC Machinery Directive. Within the scope of the Directive, you must not op-
erate the machine in the designated fashion until you have established that the end
product complies with Machinery Directive 2006/42/EC.
NOTE ON EXPLOSION PROTECTION
A drive motor connected to the gear unit is only allowed to be operated under the con-
ditions described in chapter "Mechanical Installation / Gear units and gearmotors in
category II2GD" (page 34).
A motor mounted to the gear unit may only be operated on a frequency inverter if the
data on the gear unit nameplate is met!
If a gear unit is operated in combination with a variable speed gear unit, the operating
instructions of the variable speed gear unit must be observed in addition.
A motor mounted to a gear unit by means of an adapter or belt may only be operated
if the data on the gear unit nameplate is met!
Make sure that there are no aggressive substances in the vicinity that could damage
the paint and seals.

10 Assembly and Operating Instructions – Explosion-Proof Gear Units
2Other applicable documentation
Safety Notes
2.5 Other applicable documentation
2.5.1 Explosion-proof gear units
The following publications and documents have to be observed as well:
• "Explosion-Proof AC Motors DR.71 – 225" operating instructions
• Operating instructions of any attached options
• "Explosion-Proof AC Motors" catalog and, if applicable,
• "Explosion-proof drives" catalog
2.6 Transport/storage
Inspect the shipment for any damage that may have occurred in transit as soon as you
receive the delivery. Inform the shipping company immediately. It may be necessary to
preclude startup.
Tighten the eyebolts securely. They are designed to only carry the weight of the mo-
tor/gearmotor; do not attach any additional loads.
The built-in lifting eyebolts comply with DIN 580. Always observe the loads and regula-
tions listed in this standard. If the gearmotor is equipped with two eyebolts, then both
should be used for transportation. In this case, the tension force vector of the slings must
not exceed a 45° angle according to DIN 580.
Use suitable, sufficiently rated handling equipment if required. Reattach these in the
case of further transportation.
Store the motor/gearmotor in a dry, dust-free environment if it is not to be installed
straight away. You must not store the motor/gearmotor outdoors or on the fan guard.
The motor/gearmotor can be stored for up to 9 months without requiring any special
measures before startup.
2.7 Installation/assembly
Observe the notes in section "Mechanical Installation" (page 21)!
2.8 Startup/operation
Check the oil level before startup as described in chapter Inspection/Maintenance
(page 84).
Check that the direction of rotation is correct in decoupled status. Listen out for unusual
grinding noises as the shaft rotates.
Secure keys for test mode without output elements. Do not deactivate monitoring and
protection equipment even in test mode.
Switch off the gearmotor if in doubt whenever changes occur in relation to normal oper-
ation (e.g. increased temperature, noise, vibration). Determine the cause and contact
SEW-EURODRIVE, if required.
2.9 Inspection/maintenance
Observe the notes in chapter "Inspection/Maintenance" (page 84).

Assembly and Operating Instructions – Explosion-Proof Gear Units 11
3
Before startup
Check Lists
3 Check Lists
3.1 Before startup
This checklist includes all activities that will have to be executed prior to startup of a
gear unit according to Directive 94/9/EC for operation in potentially explosive atmo-
spheres.
Check prior to startup in potentially explosive atmospheres Checked Information
in section ...
Inspect the shipment for any damage that may have occurred in transit as soon as you receive the deliv-
ery. Inform the shipping company immediately. Startup may have to be precluded. Remove transportation
safety fixtures prior to startup.
2.6
Does the following information on the gear unit nameplate correspond with the permitted conditions for
potentially explosive atmospheres on site:
• Equipment group
• Atex category
• Atex zone
• Temperature class
• Maximum surface temperature
4.7 and 5.5
Have arrangements been made to prevent explosive atmospheres, oils, acids, gases, vapors or radiation
during installation of the gear unit?
5.2
Is the ambient temperature maintained according to the lubricant table? 9.2
Have arrangements been made for sufficient ventilation and that there will be no external heat generation
(e.g. via clutches)? The cooling air may not exceed a temperature of 40 °C.
5.3 and 5.5
Does the mounting position on the gear unit nameplate correspond to the indicated mounting position?
Important: The mounting position may only be changed after consultation with SEW-EURODRIVE. ATEX
approval will become void without prior consultation.
5.3 and 8.1
Does the oil level for the mounting position on the gear unit nameplate correspond to the indicated oil fill
quantity?
5.3
Are all oil check and drain plugs as well as breather plugs and valves freely accessible? 5.3
Do all input and output elements to be installed have ATEX certification? 5.4.2
Have you checked that the data on the nameplate of the gear unit are not exceeded for standalone gear
units with adapter or input shaft assembly?
6.2
When mounting gear units with hollow shaft and shrink disk:
• Is the cover mounted properly?
5.8
When mounting the coupling of AM, AQA adapters:
• You must not use distance bushings as an assembly tool!
5.11 and 5.12
When mounting a motor on the AD input shaft assembly:
• Has the belt between input shaft end and motor shaft sufficient electrical leakage resistance < 109ȍ?
• Before mounting a protection cover: Does a risk analysis performed by the manufacturer of the protec-
tion cover demonstrate that no sources of ignition can occur (such as impact sparks from grinding)?
5.14
For mains-operated motors:
• Check that the data specified on the nameplate of the gear unit and the motor corresponds to the
ambient conditions at the location where the drive is to be installed.
6.2
For inverter-operated gearmotors: Check that the gearmotor is approved for operation with an inverter
• The parameter settings made for the inverter must prevent the gear unit from being overloaded (see
gear unit nameplate).
6.5

12 Assembly and Operating Instructions – Explosion-Proof Gear Units
3During startup
Check Lists
3.2 During startup
This checklist includes all activities that will have to be executed during startup of a
gear unit according to Directive 94/9/EC for operation in potentially explosive atmo-
spheres.
Check during startup in potentially explosive atmospheres Checked Information
in section ...
Measure the surface temperature after three hours of operation. Do not exceed a temperature difference of
70 K compared to the ambient temperature. If the value is > 70 K, stop the drive immediately and contact
SEW-EURODRIVE!
6.2
Measure the oil temperature. Add 10 K to the measured value. Determine lubricant change interval using
this value.
6.2
Observe for gear units with AM adapter or AD input shaft assembly with RS backstop:
• In rated operation, the lift-off speeds of the backstops must not drop below the minimum values.
5.11 and 5.12

Assembly and Operating Instructions – Explosion-Proof Gear Units 13
4
Basic design of helical gear units
Gear Unit Structure
4 Gear Unit Structure
4.1 Basic design of helical gear units
INFORMATION
The following figures are block diagrams. They help you to assign components to the
spare parts list. Discrepancies may occur depending on the gear unit size and version.
19194251
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[11]
[12]
[17]
Pinion
Gearwheel
Pinion shaft
Gearwheel
Pinion shaft
Gearwheel
Output shaft
Key
Oil seal
Roller bearing
Circlip
Spacer tube
[19]
[20]
[22]
[24]
[25]
[30]
[31]
[32]
[34]
[37]
[39]
[41]
Key
Breather valve
Gear unit housing
Lifting eyebolt
Roller bearing
Roller bearing
Key
Spacer tube
Roller bearing
Roller bearing
Circlip
Circlip
[42]
[43]
[45]
[47]
[59]
[88]
[100]
[101]
[102]
[131]
[181]
[506]
Roller bearing
Key
Roller bearing
Circlip
Screw plug
Circlip
Gear cover plate
Hex head screw
Seal
Closing cap
Closing cap
Shim
[507]
[508]
[515]
[516]
[517]
[521]
[522]
[523]
Shim
Shim
Shim
Shim
Shim
Shim
Shim
Shim
[1]
[24]
[20]
[59]
[101]
[100]
[102]
[59]
[88]
[25]
[6]
[47]
[516]
[515]
[517]
[45]
[2]
[43]
[3]
[42]
[41]
[181]
[8] [7]
[32] [30]
[59]
[22]
[31]
[4]
[34]
[5]
[37]
[521]
[523]
[522]
[39]
[131]
[17]
[11]
[12]
[9]
[19]
[506]
[508]
[507]

14 Assembly and Operating Instructions – Explosion-Proof Gear Units
4Basic structure of parallel shaft helical gear units
Gear Unit Structure
4.2 Basic structure of parallel shaft helical gear units
19298059
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[9]
[11]
[14]
[16]
[17]
[19]
[20]
Pinion
Gear
Pinion shaft
Gear
Pinion shaft
Gear
Hollow shaft
Oil seal
Rolling bearing bearing
Hexagon screw
Output flange
Spacer tube
Key
Breather valve
[22]
[25]
[30]
[31]
[32]
[37]
[39]
[41]
[42]
[43]
[45]
[59]
[81]
[88]
Gear unit housing
Rolling bearing
Rolling bearing
Key
Spacer tube
Rolling bearing
Retaining ring
Retaining ring
Rolling bearing
Key
Rolling bearing
Screw plug
Shield ring
Retaining ring
[91]
[92]
[93]
[94]
[100]
[101]
[102]
[131]
[160]
[161]
[165]
[181]
[183]
Retaining ring
Washer
Lock washer
Hexagon screw
Inspection cover
Hexagon screw
Seal
Closing cap
Closing plug
Closing cap
Closing plug
Closing cap
Oil seal
[506]
[507]
[508]
[515]
[516]
[517]
[521]
[522]
[523]
Shim
Shim
Shim
Shim
Shim
Shim
Shim
Shim
Shim
[181]
[41]
[517]
[508]
[516]
[507]
[515]
[506]
[42] [3]
[43]
[2] [45]
[30]
[59]
[101]
[100]
[102]
[160]
[165]
[161]
[59]
[59]
[20]
[22] [1]
[521]
[522]
[523]
[25]
[88]
[183]
[32]
[4]
[31]
[5]
[37]
[39]
[131]
[14]
[16]
[81]
[9] [11]
[17] [6]
[7]
[91]
[92] [93]
[94]
[19]

Assembly and Operating Instructions – Explosion-Proof Gear Units 15
4
Basic structure of helical-bevel gear units
Gear Unit Structure
4.3 Basic structure of helical-bevel gear units
19301131
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[11]
[12]
[17]
[19]
[20]
[22]
Pinion
Gear
Pinion shaft
Gear
Pinion shaft
Gear
Output shaft
Key
Oil seal
Rolling bearing
Retaining ring
Spacer tube
Key
Breather valve
Gear unit housing
[25]
[30]
[31]
[37]
[39]
[42]
[43]
[45]
[59]
[83]
[84]
[88]
[89]
[100]
[101]
Rolling bearing
Rolling bearing
Key
Rolling bearing
Retaining ring
Rolling bearing
Key
Rolling bearing
Screw plug
Shield ring
Shield ring
Retaining ring
Closing cap
Inspection cover
Hexagon screw
[102]
[113]
[114]
[116]
[119]
[131]
[132]
[133]
[135]
[161]
[506]
[507]
[508]
[521]
[521]
Seal
Slotted nut
Multi-tang washer
Thread locker
Spacer tube
Closing cap
Retaining ring
Supporting ring
Shield ring
Closing cap
Shim
Shim
Shim
Shim
Shim
[522]
[523]
[533]
[534]
[535]
[536]
[537]
[538]
[542]
[543]
[544]
Shim
Shim
Shim
Shim
Shim
Shim
Shim
Shim
Shim
Shim
Shim
[100] [102]
[3]
[101]
[43]
[538] [535]
[537] [534]
[536] [533]
[42] [119]
[45] [2]
[20]
[22] [59]
[59]
[59]
[59]
[1]
[114]
[113]
[116]
[89][59]
[88]
[521]
[522]
[523]
[25]
[84]
[19]
[8] [7]
[6]
[17]
[83]
[11]
[12]
[9]
[37]
[5]
[4]
[30]
[135]
[542]
[543]
[544]
[133]
[132][161]
[31]
[506]
[507]
[508]
[137]
[131]

16 Assembly and Operating Instructions – Explosion-Proof Gear Units
4Basic design of helical-worm gear units
Gear Unit Structure
4.4 Basic design of helical-worm gear units
19304203
[1]
[2]
[5]
[6]
[7]
[9]
[11]
[12]
[19]
Pinion
Gearwheel
Worm
Worm gear
Output shaft
Oil seal
Roller bearing
Circlip
Key
[20]
[22]
[25]
[30]
[37]
[39]
[43]
[59]
[61]
Breather valve
Gear unit housing
Roller bearing
Roller bearing
Roller bearing
Circlip
Key
Screw plug
Circlip
[88]
[89]
[100]
[101]
[102]
[131]
[137]
[506]
[507]
Circlip
Closing cap
Gear cover plate
Hex head screw
Seal
Closing cap
Supporting ring
Shim
Shim
[518]
[519]
[520]
[521]
[522]
[523]
Shim
Shim
Shim
Shim
Shim
Shim
[131] [39] [137]
[507]
[506]
[37]
[5] [43] [30]
[9]
[12]
[520]
[519]
[518]
[11]
[6]
[7]
[25] [88]
[89] [59]
[523]
[522]
[521]
[19]
[2] [59]
[102]
[101] [59] [20]
[22]
[1]
[100]
[61]

Assembly and Operating Instructions – Explosion-Proof Gear Units 17
4
Basic design of SPIROPLAN®W10-W30 gear units
Gear Unit Structure
4.5 Basic design of SPIROPLAN®W10-W30 gear units
19307275
[1]
[6]
[7]
[8]
[9]
[11]
[12]
[17]
Pinion
Gearwheel
Output shaft
Key
Oil seal
Roller bearing
Circlip
Spacer tube
[19]
[22]
[25]
[65]
[66]
[71]
[72]
[143]
Key
Gear unit housing
Roller bearing
Oil seal
Roller bearing
Supporting ring
Circlip
Supporting ring
[88]
[89]
[100]
[101]
[102]
[132]
[183]
[250]
Circlip
Closing cap
Gear cover plate
Hex head screw
Seal
Circlip
Oil seal
Circlip
[251]
[518]
[519]
[520]
[521]
[522]
[523]
Circlip
Shim
Shim
Shim
Shim
Shim
Shim
[1]
[68]
[72]
[143]
[66]
[71]
[65]
[100]
[102]
[22]
[89]
[521]
[522]
[523]
[88]
[25]
[6]
[250]
[251]
[17]
[7]
[11]
[8]
[19]
[518]
[519]
[520]
[12]
[9]
[101]

18 Assembly and Operating Instructions – Explosion-Proof Gear Units
4Basic design of SPIROPLAN®W37 gear units
Gear Unit Structure
4.6 Basic design of SPIROPLAN®W37 gear units
605872395
[1]
[2]
[5]
[6]
[7]
[8]
[9]
[11]
[12]
[19]
Pinion
Wheel
Pinion shaft
Wheel
Output shaft
Key
Oil seal
Grooved ball bearing
Retaining ring
Key
[22]
[24]
[25]
[26]
[30]
[31]
[32]
[33]
[36]
[37]
Gear unit housing
Eyebolt
Grooved ball bearing
Housing stage 1
Grooved ball bearing
Key
Spacer tube
Retaining ring
Hex head screw
Grooved ball bearing
[44]
[59]
[61]
[68]
[72]
[80]
[88]
[89]
[106]
[133]
O-ring
Screw plug
Retaining ring
Retaining ring
Retaining ring
Key
Retaining ring
Closing cap
Stud
Shim
[137]
[150]
[183]
[506]
[518]
[519]
[520]
[521]
[522]
[523]
Shim
Hex nut
Oil seal
Shim
Shim
Shim
Shim
Shim
Shim
Shim
[89]
[88]
[25]
[521]
[522]
[523]
[6]
[22]
[7]
[19]
[11]
[36]
[26]
[2]
[31]
[61]
[1]
[5]
[137]
[30]
[37]
[506]
[133]
[44]
[59]
[59]
[8]
[32]
[5]
[33]
[9]
[12]
[518]
[519]
[520]

Assembly and Operating Instructions – Explosion-Proof Gear Units 19
4
Nameplate and type designation
Gear Unit Structure
4.7 Nameplate and type designation
4.7.1 Nameplate
Information about
special markings
210927627
fb= Service factor
FRa max [N] = Maximum overhung load on the output side
FRe max [N] = Maximum overhung load on the input side (with input shaft assembly AD)
i = Gear unit reduction ratio
IM = Mounting position
IP.. = Degree of protection
ne max [rpm] = maximum input speed
na[rpm] = Output speed
Memax [Nm] = maximum input torque
Ma[Nm] = Output torque
MR[Nm] = Overload torque when using an AR adapter
MRS [Nm] = Locking torque of the backstop
Ma
Nm
Made in Germany
kg
IM
IP
i
na
ne max
N
Fra max
r/min
r/min
fB
Me max
Nm
SEW - Eurodrive
76646 Bruchsal/Germany
RF47/A/II2GD
40
89
5313
1380
2,6
M1
3,1
13,4
65
34,73
CLP HC 220 Synth. Öl / 0,65l
RF47/A/II2GD
FSA GmbH, EU Code 0588
0641 543 1
NOTE ON EXPLOSION PROTECTION
In some cases SEW gear units/gearmotors must only be operated in compliance with
special measures. For these cases, there is a special indication on the nameplate
"II..X".
These special measures may be necessary due to varying reasons (e.g. intermittent
operation only, reduced output torque, etc.). The customer has been informed about
the required special measures on the initial distribution of the gear unit/gearmotor. The
customer is obliged to ensure the compliance with these special measures.
EAC marking
On requests, the explosion-proof gear units from SEW-EURODRIVE meet the require-
ments of the technical regulations of the Eurasian Economic customs union (Russia,
Kazakhstan, Belarus, and Armenia). The EAC marking on the product certifies the
conformity with the safety requirement of the Customs Union.

20 Assembly and Operating Instructions – Explosion-Proof Gear Units
4Nameplate and type designation
Gear Unit Structure
4.7.2 Type designation
Example: Helical
gear unit, category
II2GD
NOTE ON EXPLOSION PROTECTION
For a detailed overview of type designations and additional information, refer to the fol-
lowing publications:
• "Explosion-Proof Gearmotors" catalog
• "Explosion-Proof AC Motors" catalog
RF 47 /A /II2GD
Explosion-proof design to directive 94/9/EC
For direct motor mounting
Gear unit size
Helical gear unit series (flange mounted)