SEW-Eurodrive R Series User manual

*27776123_0322*
Drive Technology \ Drive Automation \ System Integration \ Services
Assembly and Operating
Instructions
Explosion-Protected Gear Units
R.., F.., K.., S.., and SPIROPLAN® W.. Series
Edition 03/2022 27776123/EN

SEW-EURODRIVE—Driving the world

Table of contents
Assembly and Operating Instructions – Explosion-Protected Gear Units 3
Table of contents
1 General information.................................................................................................................. 6
1.1 About this documentation ...............................................................................................6
1.2 Structure of the safety notes ...........................................................................................6
1.3 Rights to claim under limited warranty ............................................................................7
1.4 Product names and trademarks......................................................................................7
1.5 Copyright notice ..............................................................................................................8
2 Safety notes .............................................................................................................................. 9
2.1 Preliminary information ...................................................................................................9
2.2 Duties of the user............................................................................................................9
2.3 Target group ...................................................................................................................9
2.4 Designated use .............................................................................................................10
2.5 Other applicable documentation ...................................................................................11
2.6 Safety note for working in potentially explosive areas ..................................................11
2.7 Transportation/storage..................................................................................................11
2.8 Installation/assembly.....................................................................................................12
2.9 Startup/operation ..........................................................................................................12
2.10 Cleaning........................................................................................................................12
2.11 Inspection/maintenance................................................................................................12
3 Gear unit structure ................................................................................................................. 13
3.1 Basic structure of helical gear units R..07–R..167 ......................................................13
3.2 Basic structure of parallel-shaft helical gear units F..27–F..157 .................................14
3.3 Basic structure of helical-bevel gear units K..19/K..29..................................................15
3.4 Basic structure of helical-bevel gear units K..39/K..49..................................................17
3.5 Basic structure of helical-bevel gear units K..37 – K..187.............................................18
3.6 Basic structure of helical-worm gear units S..37 – S..97, S..37p – S..97p....................19
3.7 Basic structure of SPIROPLAN® gear units W..10 – W..30 .........................................20
3.8 Basic structure of SPIROPLAN® gear units W..29/W..39 ............................................21
3.9 Basic structure of SPIROPLAN® gear units W..37/W..47 ............................................23
3.10 Nameplate/type designation .........................................................................................24
3.11 Type designation...........................................................................................................27
4 Mechanical installation .......................................................................................................... 31
4.1 General information ......................................................................................................31
4.2 Gear units/gearmotors in explosion-protected design II2GD and II3GD.......................32
4.3 Prerequisites for installation..........................................................................................33
4.4 Required tools/resources ..............................................................................................34
4.5 Installation tolerances ...................................................................................................34
4.6 Directions of rotation .....................................................................................................35
4.7 Installing the gear unit...................................................................................................37
4.8 Gear units with solid shaft.............................................................................................47
4.9 Torque arms for shaft-mounted gear units....................................................................50
4.10 Mounting shaft-mounted gear units with splined hollow shaft.......................................56
4.11 Shaft-mounted gear units with keyway .........................................................................57
4.12 Shaft-mounted gear units with shrink disk ....................................................................63
27776123/EN – 03/2022

Table of contents
Assembly and Operating Instructions – Explosion-Protected Gear Units
4
4.13 Shaft-mounted gear units with TorqLOC®....................................................................67
4.14 Cover ............................................................................................................................80
4.15 AMS.. adapter...............................................................................................................81
4.16 AQS.. adapter ...............................................................................................................89
4.17 Adapter with AR slip clutch ...........................................................................................94
4.18 AD input shaft assembly ...............................................................................................97
4.19 Direct mounting of a motor on a gear unit...................................................................101
4.20 Accessory equipment..................................................................................................104
5 Startup ................................................................................................................................... 117
5.1 Checklists....................................................................................................................118
5.2 Inverter-operated gearmotors .....................................................................................120
5.3 Checking the oil level ..................................................................................................120
5.4 Pseudo-leakage at shaft seals....................................................................................120
5.5 Measuring surface and oil temperature ......................................................................121
5.6 Helical-worm and SPIROPLAN®W.. gear units.........................................................122
5.7 Helical/parallel-shaft helical/helical-bevel gear units...................................................123
5.8 Gear units with backstop.............................................................................................123
5.9 Speed monitoring........................................................................................................125
5.10 Installation and adjustment of the WEX speed monitor ..............................................125
5.11 Installation of the voltage encoder ..............................................................................129
6 Inspection/maintenance....................................................................................................... 131
6.1 Wear parts ..................................................................................................................133
6.2 Inspection/maintenance intervals................................................................................135
6.3 Lubricant change intervals ..........................................................................................136
6.4 Servicing AL../AMS../AQS.. adapters .........................................................................136
6.5 AR adapter maintenance ............................................................................................137
6.6 Maintenance of AR adapters with slip clutch ..............................................................137
6.7 AD input shaft assembly maintenance........................................................................142
6.8 Inspection/maintenance of the gear unit.....................................................................143
7 Mounting positions............................................................................................................... 162
7.1 Designation of the mounting positions ........................................................................162
7.2 Churning losses and thermal rating ............................................................................163
7.3 Change of mounting position ......................................................................................163
7.4 Gear units in pivoted mounting position (dynamic) .....................................................164
7.5 Gear units in pivoted mounting position (stationary)...................................................164
7.6 Universal mounting position M0..................................................................................164
7.7 Mounting position sheets ............................................................................................165
8 Technical data....................................................................................................................... 202
8.1 Extended storage........................................................................................................202
8.2 Lubricants ...................................................................................................................204
9 Malfunctions and remedies ................................................................................................. 219
9.1 Gear units ...................................................................................................................220
9.2 AMS../AQS../AL.. adapters .........................................................................................221
9.3 AD input shaft assembly .............................................................................................221
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Table of contents
Assembly and Operating Instructions – Explosion-Protected Gear Units 5
9.4 Adapter with AR slip clutch .........................................................................................222
9.5 Service........................................................................................................................222
9.6 Waste disposal............................................................................................................222
10 Address list ........................................................................................................................... 223
Index ...................................................................................................................................... 234
27776123/EN – 03/2022

1General information
About this documentation
Assembly and Operating Instructions – Explosion-Protected Gear Units
6
1 General information
1.1 About this documentation
The documentation at hand is the original.
This documentation is an integral part of the product. The documentation is intended
for all employees who perform work on the product.
Make sure this documentation is accessible and legible. Ensure that persons respon-
sible for the systems and their operation as well as persons who work on the product
independently 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 signal words
The following table shows the graduation and meaning of the signal words for safety
notes.
Signal word Meaning Consequences if disregarded
DANGER Imminent hazard 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 product or its en-
vironment
INFORMATION
ON EXPLO-
SION PROTEC-
TION
Important information about
explosion protection
INFORMATION Useful information or tip: Sim-
plifies handling of the product.
1.2.2 Structure of section-related safety notes
Section-related safety notes do not apply to a specific action but to several actions
pertaining to one subject. The hazard symbols used either indicate a general hazard
or a specific hazard.
This is the formal structure of a safety note for a specific section:
SIGNAL WORD
Type and source of hazard.
Possible consequence(s) if disregarded.
• Measure(s) to prevent the hazard.
27776123/EN – 03/2022

1
General information
Rights to claim under limited warranty
Assembly and Operating Instructions – Explosion-Protected Gear Units 7
Meaning of the hazard symbols
The hazard symbols in the safety notes have the following meaning:
Hazard symbol Meaning
General hazard
Warning of dangerous electrical voltage
Warning of hot surfaces
Warning of risk of crushing
EX
Note on explosion protection
Warning of automatic restart
1.2.3 Structure of embedded safety notes
Embedded safety notes are directly integrated into the instructions just before the de-
scription of the dangerous action.
This is the formal structure of an embedded safety note:
 SIGNAL WORD! Type and source of hazard. Possible consequence(s) if disre-
garded. Measure(s) to prevent the hazard.
1.3 Rights to claim under limited warranty
Read the information in this documentation. This is essential for fault-free operation
and fulfillment of any rights to claim under limited warranty. Read the documentation
before you start working with the product.
1.4 Product names and trademarks
The brands and product names in this documentation are trademarks or registered
trademarks of their respective titleholders.
27776123/EN – 03/2022

1General information
Copyright notice
Assembly and Operating Instructions – Explosion-Protected Gear Units
8
1.5 Copyright notice
©2022SEW‑EURODRIVE. All rights reserved.
Copyright law prohibits the unauthorized reproduction, modification, distribution, and
use of this document, in whole or in part.
27776123/EN – 03/2022

2
Safety notes
Preliminary information
Assembly and Operating Instructions – Explosion-Protected Gear Units 9
2 Safety notes
2.1 Preliminary information
The following general safety notes serve the purpose of preventing injury to persons
and damage to property. They primarily apply to the use of products described in this
documentation. If you use additional components, also observe the relevant warning
and safety notes.
2.2 Duties of the user
As the user, you must ensure that the basic safety notes are observed and complied
with. Make sure that persons responsible for the machinery and its operation as well
as persons who work on the device independently have read through the documenta-
tion carefully and understood it.
As the user, you must ensure that all of the work listed in the following is carried out
only by qualified specialists:
• Setup and installation
• Installation and connection
• Startup
• Maintenance and repairs
• Shutdown
• Disassembly
Ensure that the persons who work on the product pay attention to the following regula-
tions, conditions, documentation, and information:
• National and regional safety and accident prevention regulations
• Warning and safety signs on the product
• All other relevant project planning documents, installation and startup instructions,
and wiring diagrams
• Do not assemble, install or operate damaged products
• All system-specific specifications and conditions
Ensure that systems in which the product is installed are equipped with additional
monitoring and protection devices. Observe the applicable safety regulations and leg-
islation governing technical work equipment and accident prevention regulations.
2.3 Target group
Specialist for me-
chanical work
Any mechanical work may be performed only by adequately qualified specialists. Spe-
cialists in the context of this documentation are persons who are familiar with the
design, mechanical installation, troubleshooting, and maintenance of the product who
possess the following qualifications:
• Qualifications in the field of mechanics in accordance with the national regulations
• Familiarity with this documentation
27776123/EN – 03/2022

2Safety notes
Designated use
Assembly and Operating Instructions – Explosion-Protected Gear Units
10
Specialist for elec-
trotechnical work
Any electrotechnical work may be performed only by electrically skilled persons with a
suitable education. Electrically skilled persons in the context of this documentation are
persons who are familiar with electrical installation, startup, troubleshooting, and main-
tenance of the product who possess the following qualifications:
• Qualifications in the field of electrical engineering in accordance with the national
regulations
• Familiarity with this documentation
Additional qualifi-
cations
In addition to that, these persons must be familiar with the valid safety regulations and
laws, as well as with the requirements of the standards, directives, and laws specified
in this documentation.
The persons must have the express authorization of the company to operate, pro-
gram, parameterize, label, and ground devices, systems, and circuits in accordance
with the standards of safety technology.
Instructed persons All work in the areas of transport, storage, installation, operation and waste disposal
may only be carried out by persons who are trained and instructed appropriately.
These instructions must enable the persons to carry out the required activities and
work steps safely and in accordance with regulations.
2.4 Designated use
The gear units are intended for industrial systems and may only be used in accor-
dance with the information provided in the technical documentation of
SEW‑EURODRIVE and the information given on the nameplate. They meet the re-
quirements set forth in Directive 94/9/EC or 2014/34/EU and comply with the applica-
ble standards and regulations.
The gear units are components for installation in machines and systems according to
the 2006/42/EC Machinery Directive. Within the scope of the Directive, you must not
operate the machine in the designated fashion until you have established that the end
product complies with Machinery Directive 2006/42/EC.
Optional equipment
In addition to the general installation guidelines, the following regulations in accor-
dance with German operating safety regulations (BetrSichV) or other national regula-
tions must be observed for connecting additional devices:
• EN ISO 80079-36 Potentially explosive atmospheres – part 36: Non-electrical
equipment for use in potentially explosive atmospheres – Basics and requirements
• EN ISO 80079-37 Potentially explosive atmospheres – part 37: Non-electrical
equipment for explosive atmospheres – Non-electrical type of protection construc-
tional safety "c", control of ignition sources "b", liquid immersion "k"
• EN50281-2-1 Electrical apparatus for use in the presence of combustible dust –
part 2-1: Test methods; methods for determining the minimum ignition tempera-
tures of dust
• EN60079-0 Potentially explosive areas – part 0: General requirements
• EN 60079-1 Potentially explosive areas – part 1: Equipment protection by
flameproof enclosure "d"
• EN 60079-7 Potentially explosive areas – part 7: Equipment protection by in-
creased safety "e"
• EN 60079-11 Potentially explosive areas – part 11: Equipment protection by in-
trinsic safety "i"
27776123/EN – 03/2022

2
Safety notes
Other applicable documentation
Assembly and Operating Instructions – Explosion-Protected Gear Units 11
• EN60079-14 Potentially explosive areas – part 14: Project planning, selection and
setup of electrical machinery
• EN60079-15 Potentially explosive areas – part 15: Equipment protection by pro-
tection type "n"
• EN60079-17 Potentially explosive areas – part 17: Testing and maintenance of
electrical machinery
• EN60079-31 Potentially explosive areas – part 31: Equipment dust ignition protec-
tion by enclosure "t"
• DINVDE 105-9 "Operating electrical equipment" or other national regulations
• DINVDE 0100 "Erection of power installations with rated voltages below 1000V"
or other national regulations
Technical data and information on the permitted conditions are given on the name-
plate and in the documentation; they have to be observed under all circumstances.
2.5 Other applicable documentation
Observe the corresponding documentation for all additional components.
2.6 Safety note for working in potentially explosive areas
Note that explosive gas mixtures or concentrations of dust can lead to explosions in
conjunction with hot, live, or moving parts of electrical machinery.
2.7 Transportation/storage
Inspect the shipment for damage as soon as you receive the delivery. Inform the ship-
ping company immediately about any damage. If the product is damaged, it must not
be assembled, installed or started up.
Observe the storage information on climatic conditions as given in chapter "Storage
conditions for long-term storage"(→2202).
If the product is not immediately installed, it must be stored in a dry and dust-free loca-
tion. The product can be stored for up to 9 months without requiring any special mea-
sures before startup. Do not store the product outdoors.
The permissible storage temperature is -30°C to +50°C.
For storage periods longer than 9 months, SEW‑EURODRIVE recommends the "Ex-
tended storage" design. For further information, refer to chapter "Extended stor-
age"(→2202).
The installed lifting eyebolts are in accordance with DIN580. Observe the loads and
regulations specified there. The tension force vector of the slings must not exceed a
45° angle in accordance with DIN580.
If the product has several lifting eyes or lifting eyebolts, then you should use all lifting
eyes and lifting eyebolts for attaching transport ropes. Tighten lifting eyebolts. The lift-
ing eyes or lifting eyebolts are designed to carry only the weight of the product. Do not
apply any additional loads.
The gear units K..167 and K..187 have no lifting eyes and are supplied without lifting
eyebolts. Use alternative, suitable slings.
Do not store the gearmotor on the fan guard.
27776123/EN – 03/2022

2Safety notes
Installation/assembly
Assembly and Operating Instructions – Explosion-Protected Gear Units
12
Use suitable, sufficiently rated and reusable handling equipment.
2.8 Installation/assembly
Ensure that the product is installed and cooled according to the regulations in the doc-
umentation.
Protect the product from strong mechanical strain. The product and its mounting parts
must never protrude into the path of persons or vehicles. Ensure that components are
not deformed, particularly during transportation and handling. Electrical components
must not be mechanically damaged or destroyed.
The following applications are prohibited unless the device is explicitly designed for
such use:
• Operation in applications with impermissibly high mechanical vibration and shock
loads in excess of the regulations stipulated in EN61800-5-1
• Use in areas exposed to harmful oils, acids, gases, vapors, dust, radiation, etc.
Before using a stainless steel shrink disk or stainless steel output shaft, check if the
ambient conditions are compatible with the stainless steel material. For information on
the material, refer to the order confirmation.
2.9 Startup/operation
Check that the direction of rotation is correct in the decoupled state. Listen out for un-
usual grinding noises as the shaft rotates.
Secure the keys for the test run without output elements.
Do not deactivate monitoring and protection devices even for a test run.
Switch off the gearmotor if in doubt whenever changes occur in relation to normal
operation (e.g. increased temperatures, unusual noises, vibrations). Determine the
cause. It may be necessary to contact SEW‑EURODRIVE.
2.10 Cleaning
When using a stainless steel shrink disk or stainless steel output shaft, check if the
cleaning agents and chemicals are compatible with the stainless steel material. For in-
formation on the material, refer to the order confirmation.
2.11 Inspection/maintenance
Observe the information in chapter "Inspection/maintenance"(→2131).
27776123/EN – 03/2022

3
Gear unit structure
Basic structure of helical gear units R..07–R..167
Assembly and Operating Instructions – Explosion-Protected Gear Units 13
3 Gear unit structure
INFORMATION
The following figures are block diagrams. Their purpose is only to make it easier to
assign components to the spare parts lists. Discrepancies may occur depending on
the gear unit size and version.
3.1 Basic structure of helical gear units R..07–R..167
[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]
18014398528676235
[1] Pinion [19] Key [42] Rolling bearing [507] Shim
[2] Gear [20] Breather valve [43] Key [508] Shim
[3] Pinion shaft [22] Gear unit housing [45] Rolling bearing [515] Shim
[4] Gear [24] Eyebolt [47] Retaining ring [516] Shim
[5] Pinion shaft [25] Rolling bearing [59] Screw plug [517] Shim
[6] Gear [30] Rolling bearing [88] Retaining ring [521] Shim
[7] Output shaft [31] Key [100] Inspection cover [522] Shim
[8] Key [32] Spacer tube [101] Hex head screw [523] Shim
[9] Oil seal [34] Rolling bearing [102] Gasket
[11] Rolling bearing [37] Rolling bearing [131] Closing cap
[12] Retaining ring [39] Retaining ring [181] Closing cap
[17] Spacer tube [41] Retaining ring [506] Shim
27776123/EN – 03/2022

3Gear unit structure
Basic structure of parallel-shaft helical gear units F..27–F..157
Assembly and Operating Instructions – Explosion-Protected Gear Units
14
3.2 Basic structure of parallel-shaft helical gear units F..27–F..157
[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]
9007199274039051
[1] Pinion [22] Gear unit housing [91] Retaining ring [506] Shim
[2] Gear [25] Rolling bearing [92] Washer [507] Shim
[3] Pinion shaft [30] Rolling bearing [93] Lock washer [508] Shim
[4] Gear [31] Key [94] Hex head screw [515] Shim
[5] Pinion shaft [32] Spacer tube [100] Inspection cover [516] Shim
[6] Gear [37] Rolling bearing [101] Hex head screw [517] Shim
[7] Hollow shaft [39] Retaining ring [102] Gasket [521] Shim
[9] Oil seal [41] Retaining ring [131] Closing cap [522] Shim
[11] Rolling bearing [42] Rolling bearing [160] Closing plug [523] Shim
[14] Hex head screw [43] Key [161] Closing cap
[16] Output flange [45] Rolling bearing [165] Closing plug
[17] Spacer tube [59] Screw plug [181] Closing cap
[19] Key [81] Shield ring [183] Oil seal
[20] Breather valve [88] Retaining ring
27776123/EN – 03/2022

3
Gear unit structure
Basic structure of helical-bevel gear units K..19/K..29
Assembly and Operating Instructions – Explosion-Protected Gear Units 15
3.3 Basic structure of helical-bevel gear units K..19/K..29
[115]
[163]
[1]
[2]
[530]
[531]
[532]
[536]
[537]
[538]
[45]
[141]
[42]
[48]
[43]
[20]
[193]
[36]
[26]
[44]
[22]
[59]
[167]
[5]
[168]
[9]
[12]
[11]
[25]
[88]
[91]
[92]
[93]
[94]
[95]
[183]
[19]
[6]
[7]
[520]
[519]
[518]
[523]
[522]
[521]
[159]
9007206676351499
27776123/EN – 03/2022

3Gear unit structure
Basic structure of helical-bevel gear units K..19/K..29
Assembly and Operating Instructions – Explosion-Protected Gear Units
16
[1] Pinion [26] Housing of 1st stage [94] Hex head screw [520] Shim
[2] Gear [36] Stud [95] Protection cap [521] Shim
[5] Pinion shaft [42] Tapered roller bear-
ing
[115] Retaining ring [522] Shim
[6] Gear [43] Key [141] Bushing [523] Shim
[7] Hollow shaft [44] Seal [159] Closing plug [530] Shim
[9] Oil seal [45] Tapered roller bear-
ing
[163] Supporting ring [531] Shim
[11] Rolling bearing [50] Bevel gear set [167] Closing plug [532] Shim
[12] Retaining ring [59] Screw plug [168] Protection cap [536] Shim
[19] Key [88] Retaining ring [183] Oil seal [537] Shim
[20] Breather valve [91] Retaining ring [193] Closing plug [538] Shim
[22] Gear unit housing [92] Washer [518] Shim
[25] Deep groove ball
bearing
[93] Lock washer [519] Shim
27776123/EN – 03/2022

3
Gear unit structure
Basic structure of helical-bevel gear units K..39/K..49
Assembly and Operating Instructions – Explosion-Protected Gear Units 17
3.4 Basic structure of helical-bevel gear units K..39/K..49
[1]
[45]
[2]
[538]
[537]
[536]
[48]
[11] [17]
[5]
[113]
[42]
[43]
[20]
[22]
[59]
[102]
[100]
[101]
[9]
[10]
[12] [520]
[519]
[518]
[523]
[522]
[521]
[7]
[8]
[19]
[6] [25]
[88]
[89]
14457456395
[1] Pinion [12] Retaining ring [48] Supporting ring [518] Shim
[2] Gear [17] Spacer tube [50] Bevel gear set [519] Shim
[5] Pinion shaft [19] Key [59] Screw plug [520] Shim
[6] Gear [20] Breather valve [88] Retaining ring [521] Shim
[7] Hollow shaft [22] Gear unit housing [89] Closing cap [522] Shim
[8] Key [25] Deep groove ball bear-
ing
[100] Inspection cover [523] Shim
[9] Oil seal [42] Tapered roller bearing [101] Hex head screw [536] Shim
[10] Oil seal [43] Key [102] Gasket [537] Shim
[11] Deep groove ball bear-
ing
[45] Tapered roller bearing [113] Slotted nut [538] Shim
27776123/EN – 03/2022

3Gear unit structure
Basic structure of helical-bevel gear units K..37 – K..187
Assembly and Operating Instructions – Explosion-Protected Gear Units
18
3.5 Basic structure of helical-bevel gear units K..37 – K..187
[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]
[39]
[131]
9007199274042123
[1] Pinion [25] Rolling bearing [102] Gasket [522] Shim
[2] Gear [30] Rolling bearing [113] Slotted nut [523] Shim
[3] Pinion shaft [31] Key [114] Multi-tang washer [533] Shim
[4] Gear [37] Rolling bearing [116] Thread lock [534] Shim
[5] Pinion shaft [39] Retaining ring [119] Spacer tube [535] Shim
[6] Gear [42] Rolling bearing [131] Closing cap [536] Shim
[7] Output shaft [43] Key [132] Retaining ring [537] Shim
[8] Key [45] Rolling bearing [133] Supporting ring [538] Shim
[9] Oil seal [59] Screw plug [135] Shield ring [542] Shim
[11] Rolling bearing [83] Shield ring [137] Supporting ring [543] Shim
[12] Retaining ring [84] Shield ring [161] Closing cap [544] Shim
[17] Spacer tube [88] Retaining ring [506] Shim
[19] Key [89] Closing cap [507] Shim
[20] Breather valve [100] Inspection cover [508] Shim
[22] Gear unit housing [101] Hex head screw [521] Shim
27776123/EN – 03/2022

3
Gear unit structure
Basic structure of helical-worm gear units S..37 – S..97, S..37p – S..97p
Assembly and Operating Instructions – Explosion-Protected Gear Units 19
3.6 Basic structure of helical-worm gear units S..37 – S..97, S..37p – S..97p
[131] [39] [137]
[507]
[506]
[37]
[5] [31] [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]
18014398528786187
[1] Pinion [20] Breather valve [88] Retaining ring [518] Shim
[2] Gear [22] Gear unit housing [89] Closing cap [519] Shim
[5] Worm [25] Rolling bearings [100] Gear unit cover [520] Shim
[6] Worm gear [30] Rolling bearings [101] Hex head screw [521] Shim
[7] Output shaft [31] Key [102] Gasket [522] Shim
[9] Oil seal [37] Rolling bearings [131] Closing cap [523] Shim
[11] Rolling bearings [39] Retaining ring [137] Supporting ring
[12] Retaining ring [59] Screw plug [506] Shim
[19] Key [61] Retaining ring [507] Shim
27776123/EN – 03/2022

3Gear unit structure
Basic structure of SPIROPLAN® gear units W..10 – W..30
Assembly and Operating Instructions – Explosion-Protected Gear Units
20
3.7 Basic structure of SPIROPLAN® gear units W..10 – W..30
Basic
structure of
SPIROPLA
N® gear
units W..10
– W..30
[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]
9007199274048267
[1] Pinion [19] Key [88] Retaining ring [518] Shim
[6] Gear [22] Gear unit housing [89] Closing cap [519] Shim
[7] Output shaft [25] Rolling bearing [100] Inspection cover [520] Shim
[8] Key [65] Oil seal [101] Hex head screw [521] Shim
[9] Oil seal [66] Rolling bearing [102] Gasket [522] Shim
[11] Rolling bearing [68] Retaining ring [143] Supporting ring [523] Shim
[12] Retaining ring [71] Supporting ring [250] Retaining ring
[17] Spacer tube [72] Retaining ring [251] Retaining ring
27776123/EN – 03/2022