Catalog – DRS-GM 06/2009Catalog
5 Project Planning for Gear Units..................................................................... 39
6 Mounting Positions and Important Order Information ................................ 54
7 Design and Operating Notes.......................................................................... 86
9 Helical Gearmotors ....................................................................................... 135
11 Helical-Bevel Gearmotors ............................................................................ 403
15 Abbreviation Key and Index......................................................................... 673
1.1 The SEW-EURODRIVE group of companies......................................................... 6 1.2 Products and systems from SEW-EURODRIVE .................................................... 7 1.3 Additional documentation ....................................................................................... 9
2 Product Description ...................................................................................................... 10
2.1 General notes on the product description ............................................................ 10 2.2 Corrosion and surface protection ......................................................................... 14 2.3 Extended storage ................................................................................................. 16 2.4 Condition monitoring: Oil aging and vibration sensor........................................... 17
3 Unit Designations and Variants.................................................................................... 18
4 Project Planning for Drives........................................................................................... 35
5.1 Efficiency of SEW gear units ................................................................................ 39 5.2 Oil expansion tank................................................................................................ 41 5.3 Multi-stage gearmotors......................................................................................... 42 5.4 Service factor ....................................................................................................... 43 5.5 Overhung and axial loads..................................................................................... 46 5.6 RM gear units ....................................................................................................... 50 5.7 Condition monitoring: Oil aging and vibration sensor........................................... 53
6 Mounting Positions and Important Order Information............................................... 54
6.1 General information regarding the mounting positions......................................... 54 6.2 Important order information .................................................................................. 55 6.3 Key to the mounting position sheets .................................................................... 59 6.4 Helical gearmotors – mounting positions ............................................................. 60 6.5 Parallel-shaft helical gearmotors – mounting positions ........................................ 65 6.6 Helical-bevel gearmotors – mounting positions.................................................... 68 6.7 Helical-worm gearmotors – mounting positions ................................................... 73 6.8 Spiroplan® gearmotors – mounting positions....................................................... 79 6.9 AC motor – mounting position designations......................................................... 85
7 Design and Operating Notes ........................................................................................ 86
7.1 Lubricants............................................................................................................. 86 7.2 Reduced backlash gear units ............................................................................... 94 7.3 Installation/removal of gear units with hollow shafts and keys ............................. 95 7.4 Gear units with hollow shaft ............................................................................... 100 7.5 TorqLOC® mounting system for gear units with hollow shaft ............................. 101 7.6 Shouldered hollow shaft with shrink disk option................................................. 103 7.7 Adapters for mounting IEC motors ..................................................................... 110 7.8 Adapters for mounting NEMA motors................................................................. 113 7.9 Adapters for mounting servomotors ................................................................... 115 7.10 Fastening the gear unit....................................................................................... 118 7.11 Torque arms ....................................................................................................... 118 7.12 Flange contours of RF.. and R..F gear units ...................................................... 119 7.13 Flange contours of FF.., KF.., SF.. and WF.. gear units..................................... 120 7.14 Flange contours of FAF.., KAF.., SAF.. and WAF.. gear units ........................... 121 7.15 Fixed covers ....................................................................................................... 122 7.16 Condition monitoring: Oil aging and vibration sensor......................................... 124
8 Important Information about Tables and Dimension Sheets................................... 128
8.1 Geometrically possible combinations ................................................................. 128 8.2 Selection tables for gearmotors.......................................................................... 129 8.3 Information regarding the dimension sheets ...................................................... 131
Catalog – DRS-GM 09/2009 5
10 Parallel-Shaft helical gearmotors............................................................................... 281
11 Helical-Bevel Gearmotors ........................................................................................... 403
12 Helical-Worm Gearmotors .......................................................................................... 525
12.1 Design variants................................................................................................... 525 12.2 Geometrically possible combinations ................................................................. 527 12.3 Selection tables .................................................................................................. 538 12.4 Selection tables for particularly low output speeds ............................................ 558 12.5 Dimension sheets............................................................................................... 563 12.6 Technical data S, SF, SA, SAF 37 ..................................................................... 598 12.7 Technical data S, SF, SA, SAF 47 ..................................................................... 602 12.8 Technical data S, SF, SA, SAF 57 ..................................................................... 606 12.9 Technical data S, SF, SA, SAF 67 ..................................................................... 610 12.10 Technical data S, SF, SA, SAF 77 ..................................................................... 614 12.11 Technical data S, SF, SA, SAF 87 ..................................................................... 618 12.12 Technical data S, SF, SA, SAF 97 ..................................................................... 622
13 Spiroplan® Gearmotors............................................................................................... 627
14 AC Brakemotors – Technical Data ............................................................................. 663
14.1 Key to the data tables......................................................................................... 663 14.2 DRS 2-pole: 3000 1/min – S1 IE1 ...................................................................... 664 14.3 DRS 4-pole: 1500 1/min – S1 IE1 ...................................................................... 665 14.4 DRS 6-pole: 1000 1/min – S1 IE1 ...................................................................... 667 14.5 DRS multi-speed 8/2-pole: 750/3000 1/min – S3 40/60% cdf ............................ 668 14.6 DRS multi-speed 8/4-pole: 750/1500 1/min – S1 ............................................... 669 14.7 DR63 2-pole: 3000 1/min – S1 ........................................................................... 670 14.8 DT56, DR63, DV250/280 4-pole: 1500 1/min – S1 IE1...................................... 671 14.9 DR63, DV250/280 6-pole: 1000 1/min – S1 IE1................................................. 672
15 Abbreviation Key and Index ....................................................................................... 673
15.1 Abbreviation key................................................................................................. 673 15.2 Index................................................................................................................... 674
16 Address Directory........................................................................................................ 677
1 The SEW-EURODRIVE group of companies Preface
Price Catalog1 Preface 1.1 The SEW-EURODRIVE group of companies Global presence Driving the world with innovative drive solutions for all branches and for every applica-
tion. Products and systems from SEW-EURODRIVE are used in a multitude of applica- tions worldwide. These include the automotive, building materials, food and beverage as well as metal-processing industries. The decision to use drive technology made by SEW-EURODRIVE stands for reliability regarding both, functionality and investment. We are represented in the most important branches of industry all over the world: with 12 manufacturing plants, 67 assembly plants in 46 countries and our comprehensive range of services, which we consider an integrative service that continues our commit- ment to outstanding quality.
Always the right drive
The SEW-EURODRIVE modular concept offers millions of combinations. This wide se- lection enables you to choose the correct drive for all applications, each based on the required speed and torque range, space available and the ambient conditions. Gear units and gearmotors offering a unique and finely tuned performance range and the best economic prerequisites to face your drive challenges. The gearmotors are powered by MOVITRAC® frequency inverters, MOVIDRIVE® in- verters and MOVIAXIS® multi-axis servo inverters, a combination that blends perfectly with the existing SEW-EURODRIVE program. As in the case for mechanical systems, the development, production and assembly is also carried out completely by SEW-EURODRIVE. In combination with our drive electronics, these drives will provide the utmost in flexibility. Products of the servo drive system, such as low backlash servo gear units, compact ser- vomotors or MOVIAXIS® multi-axis servo inverters provide precision and dynamics. From single-axis or multi-axis applications all the way to synchronized process sequenc- es, servo drive systems by SEW-EURODRIVE offer a flexible and customized imple- mentation of your application. For economical, decentralized installations, SEW-EURODRIVE offers components from its decentralized drive system, such as MOVIMOT®, the gearmotor with integrated fre- quency inverter or MOVI-SWITCH®, the gearmotor with integrated switching and pro- tection function. SEW-EURODRIVE hybrid cables have been designed specifically to ensure cost-effective solutions, independent of the philosophy behind or the size of the system. The latest developments from SEW-EURODRIVE: MOVITRANS® system com- ponents for contactless energy transfer, MOVIPRO®, the decentralized drive control and MOVIFIT®, the new decentralized intelligence. Power, quality and sturdy design combined in one standard product: With high torque levels, industrial gear units from SEW-EURODRIVE realize major movements. The modular concept will once again provide optimum adaptation of industrial gear units to meet a wide range of different applications.
Your ideal partner Its global presence, extensive product range and broad spectrum of services make SEW-EURODRIVE the ideal partner for the machinery and plant construction industry when it comes to providing drive systems for demanding applications in all branches of industries and applications.
Catalog – DRS-GM 06/2009 7
1 1.2 Products and systems from SEW-EURODRIVE
The products and systems from SEW-EURODRIVE are divided into 4 product groups. These 4 product groups are: 1. Gearmotors and frequency inverters 2. Servo drive systems 3. Decentralized drive systems 4. Industrial gear units
Products and systems used in several group applications are listed in a separate group "Products and systems covering several product groups". Consult the following tables to locate the products and systems included in the respective product group:
1. Gearmotors and frequency inverters
Gear units/gearmotors Motors Frequency inverters
• Helical gear units/helical gearmotors
• Helical-bevel gear units/heli- cal-bevel gearmotors
• Helical-worm gear units/heli- cal-worm gearmotors
• Spiroplan® right-angle gear- motors
• Geared torque motors • Pole-changing gearmotors • Variable speed gear
units/variable speed gearmo- tors
units/variable speed gearmo- tors to ATEX standard
• Asynchronous AC motors / AC brakemotors
• Pole-changing AC motors / AC brakemotors
• Energy-efficient motors • Explosion-proof AC motors /
AC brakemotors • Torque motors • Single-phase motors / single-
phase brakemotors • Asynchronous linear motors
• MOVITRAC® frequency inverters
munication options for invert- ers
2. Servo drive systems
Servomotors Servo drive inverters/servo inverters
• Low backlash planetary servo gear units / planetary gear- motors
• Low backlash helical-bevel servo gear units / helical- bevel gearmotors
• Explosion-proof servo gear units / servo gearmotors
• Asynchronous servomotors / servo brakemotors
• Synchronous servomotors / servo brakemotors
• Explosion-proof servomotors / servo brakemotors
inverters • Control, technology and com-
munication options for servo drive inverters and servo inverters
8 Catalog – DRS-GM 06/2009
In addition to products and systems, SEW-EURODRIVE offers a comprehensive range of services. These include: • Technical consulting • Application software • Seminars and training • Extensive technical documentation • International customer service
Visit our homepage at → www.sew-eurodrive.com The website provides comprehensive information and services.
3. Decentralized drive systems
Contactless energy transfer
• MOVIMOT® motors/brakemo- tors with integrated frequency inverter
• MOVI-SWITCH® gearmotors with integrated switching and protection function
• MOVI-SWITCH® motors/brakemotors with inte- grated switching and protec- tion function
• Explosion-proof MOVIMOT® and MOVI-SWITCH® gear- motors
• Fieldbus interfaces • Field distributors for decen-
tralized installation • MOVIFIT® product range
– MOVIFIT®-MC to control MOVIMOT® drives
– MOVIFIT®-SC with inte- grated electronic motor switch
– MOVIFIT®-FC with inte- grated frequency inverter
• MOVITRANS® system – Stationary components
tion material
Products and systems covering several product groups
• Operator terminals • MOVI-PLC® drive-based control system
Catalog – DRS-GM 06/2009 9
This DRS Gearmotors price catalog / catalog includes the detailed technical data of the following SEW-EURODRIVE product groups: • DRS helical gearmotors • DRS parallel-shaft helical gearmotors • DRS helical-bevel gearmotors • DRS helical-worm gearmotors • DRS Spiroplan® gearmotors
The price catalogs and catalogs offer the following information: • Product descriptions • Unit designations • Project planning instructions for drives and gear units • Visual representation of mounting positions • Explanation on the order information • Design and operating notes • Important information about tables and dimension sheets • Description of the different types • Overview of all permitted combinations • Selection tables for DRS gearmotors • Dimension sheet for DRS gearmotors • Technical data • Price catalog → prices and option pricing of options and accessories
Additional docu- mentation
The "DR AC Motors" catalog/price catalog is available from SEW-EURODRIVE in addi- tion to this "DRS Gearmotors" catalog/price catalog.
This catalog/price catalog contains the following information: • Unit designations • Product descriptions • Project planning instructions for DR series AC motors • Technical data of DR series AC motors • Technical data of options and additional features • Information about the dimension sheets • Dimension sheets for DR AC motors • Information on brakes from SEW-EURODRIVE • Information on prefabricated cables • Price catalog → prices and option pricing of options and accessories
Please note that the complete range of technical documentation is available on our home page: → www.sew-eurodrive.com
10 Catalog – DRS-GM 06/2009
2 General notes on the product description Product Description
2 Product Description 2.1 General notes on the product description Ambient tempera- ture
Gear units and gearmotors from SEW-EURODRIVE can be operated in a wide ambient temperature range. The following standard temperature ranges are permitted for filling the gear units according to the lubricant table:
The rated data of the gear units and gearmotors specified in the catalog/price catalog refer to an ambient temperature of +25 °C.
Gear units and gearmotors from SEW-EURODRIVE can be operated outside the stan- dard temperature range if project planning is adapted to ambient temperatures from -40 °C to +60 °C. Project planning must take special operating conditions into account and adapt the drive to the ambient conditions by selecting suitable lubricants and seals. This kind of project planning is generally recommended for increased ambient temper- atures as of size 97 and for helical-worm gear units with small gear ratios. SEW-EURODRIVE will gladly perform this project planning for you.
If the drive is to be operated on a frequency inverter, you must also consider the project planning notes of the inverter and take into account the thermal effects of inverter oper- ation.
Installation alti- tude
Due to the low air density at high installation altitudes, heat dissipation on the surface of motors and gear units decreases. The rated data listed in the catalog/price catalog ap- plies to an installation altitude of maximum 1000 m above sea level. Installation altitudes of more than 100 m asl must be taken into account for project planning of gear units and gearmotors.
Power and torque The power and torque ratings listed in the catalogs refer to mounting position M1 and similar mounting positions in which the input stage is not completely submerged in oil. In addition, the gearmotors are assumed to be standard versions with standard lubrica- tion and under normal ambient conditions. Please note that the motor power shown in the selection tables for gearmotors is subject to selection. However, the output torque and the desired output speed are essential for the application and need to be checked.
Speeds The quoted output speeds of the gearmotors are recommended values. You can calcu- late the rated output speed based on the rated motor speed and the gear unit ratio. Please note that the actual output speed depends on the motor load and the supply sys- tem conditions.
Noise The noise levels of all SEW-EURODRIVE gear units, motors and gearmotors are well within the maximum permitted noise levels set forth in the VDI guideline 2159 for gear units and IEC/EN 60034 for motors.
Gear unit Filled with Permitted standard tempera- ture range
Helical, parallel shaft helical and heli- cal-bevel gear units CLP(CC) VG220 -10 °C ... +40 °C
Helical-worm gear unit CLP(CC) VG680 0 °C ... +40 °C
Spiroplan® gear units CLP(SEW-PG) VG460 -10 °C ... +40 °C
Catalog – DRS-GM 06/2009 11
2
Coating Gear units, motors and gearmotors from SEW-EURODRIVE are painted with "blue/gray"/RAL 7031 machine paint according to DIN 1843 as standard. Special paints are available on request. Exception: Spiroplan® W..10 DT56 gearmotors have an aluminum housing and are supplied unpainted as standard.
Surface and cor- rosion protection
If required, all gear units, motors and gearmotors from SEW-EURODRIVE can also be supplied with special surface protection for applications in extremely humid and chemi- cally aggressive environments.
Weights Please note that all weights shown in the catalogs exclude the oil fill for the gear units and gearmotors. The weights vary according to gear unit type and gear unit size. The lubricant fill depends on the mounting position which means no universally applicable information can be given. Please refer to "Lubricants" in the "Design and Operating Notes" section for recommended lubricant fill quantities depending on the mounting po- sition. For the exact weight, refer to the order confirmation.
Air admission and accessibility
The gearmotors/brakemotors must be mounted on the driven machine in such a way that both axially and radially there is enough space left for unimpeded air admission, for maintenance work on the brake and, if required, for the MOVIMOT® inverter. Please also refer to the notes in the motor dimension sheets.
Multi-stage gear units
You can achieve particularly low output speeds by using multi-stage gear units or multi- stage gearmotors. Such a setup requires a helical gear unit or gearmotor on the input end as a second gear unit. It may be necessary to limit the motor power to match the maximum permitted output torque of the gear unit.
Reduced back- lash gear units
Helical, parallel-shaft helical and helical-bevel gear units with reduced backlash are available as of gear unit size 37. The circumferential backlash of these gear units is con- siderably less than that of the standard versions so that positioning tasks can be solved with great precision. The circumferential backlash is specified in angular minutes [ ’] in the technical data. The circumferential backlash for the output shaft is specified without load (max. 1% of the rated output torque); the gear unit input end is blocked. For further information, refer to section "Reduced backlash gear units" on page 94.
NOCO® fluid for protection against contact corrosion
As standard, all shaft-mounted gear units and gearmotors are supplied with NOCO®
Fluid, a paste that prevents contact corrosion. Use this paste in accordance with the in- structions in the gear unit operating instructions. It facilitates service and stripping down jobs. NOCO® fluid is a food grade substance according to USDA-H1. You can tell that NOCO® Fluid is a food grade oil by the USDA-H1 identification label on its packaging.
RM gear units, RM gearmotors
RM gear units and RM gearmotors are a special type of helical gear units with an ex- tended output bearing hub. They were designed especially for agitating applications and allow for high overhung and axial loads and bending moments. The other data are the same as for standard helical gear units and standard helical gearmotors. You can find special project planning notes for RM gearmotors in the "Project Planning for Gear Units/RM gear units" section.
12 Catalog – DRS-GM 06/2009
Spiroplan® right- angle gearmotors
Spiroplan® right-angle gearmotors are robust, single- and two-stage right-angle gear- motors with Spiroplan® gearing. The difference to the helical-worm gear units is the ma- terial combination of the steel-on-steel gearing, the special tooth meshing relationships and the aluminum housing. As a result, Spiroplan® right-angle gearmotors are wear- free, very quiet and light. The particularly short design and the aluminum housing make for very compact and lightweight drive solutions. After the running-in period, some sizes of Spiroplan® right-angle gearmotors are below the following sound pressure level in 4-pole motor operation on a 50 Hz supply system: • Spiroplan® W..10 to W..30: 55 dB(A) The sound-pressure level may be 3 to 5 dB(A) higher at time of delivery than after hours of regular operation. The wear-free gearing and the life-long lubrication facilitate long periods of mainte- nance-free operation. The oil filling being independent of the mounting position, except for Spiroplan® W..37 and W..47 in mounting position M4 makes any position possible for Spiroplan® right-angle gearmotors without altering the quantity of oil. Identical hole spacing in the foot and face, as well as the equal shaft height to both, provides you with diverse mounting options. Two different flange diameters are available. On request, Spiroplan® right-angle gear- motors can be equipped with a torque arm.
Brakemotors On request, motors and gearmotors can be supplied with an integrated mechanical brake. The SEW-EURODRIVE brake is an electromagnetic disk brake with a DC coil that releases electrically and brakes using spring force. Due to its operating principle, the brake is applied if the power fails. It meets the basic safety requirements. The brake can also be released mechanically if equipped with manual brake release. For this pur- pose, the brake is supplied with either a hand lever with automatic reset or an adjustable setscrew. The brake is controlled by a brake controller that is either installed in the motor wiring space or the control cabinet. A characteristic feature of the brakes is their very short design. The brake bearing end shield is a part of both the motor and the brake. The integrated construction of the SEW- EURODRIVE brakemotor permits particularly compact and sturdy solutions.
International mar- kets
On request, SEW-EURODRIVE supplies UL registered motors or CSA certified motors with connection conditions according to CSA and NEMA standard. On request, SEW-EURODRIVE supplies UL registered MOVIMOT® drives with connec- tion conditions according to NEMA standards. For the Japanese market, SEW-EURODRIVE offers motors conforming to JIS standard. Contact your sales representative to assist you in such cases.
Catalog – DRS-GM 06/2009 13
2
Components on the input side
The following components on the input side are available for the gear units from SEW- EURODRIVE: • 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 disk brake or backstop
Swing base A swing base is a drive unit consisting of helical-bevel gear unit, hydraulic centrifugal coupling and electric motor. The complete arrangement is mounted to a rigid mounting rail. Motor swings are available with the following optional accessories: • Torque arm • Mechanical thermal monitoring unit • Contactless thermal monitoring unit
14 Catalog – DRS-GM 06/2009
2.2 Corrosion and surface protection General informa- tion
SEW-EURODRIVE offers various optional protective measures for operation of motors and gearmotors under special ambient conditions. The protective measures comprise two groups: • Corrosion protection KS for motors • Surface protection OS for motors and gear units For motors, optimum protection is offered by a combination of KS corrosion protection and surface OS protection.
In addition, special optional protective measures for the output shafts are also available.
KS corrosion pro- tection
KS corrosion protection for motors comprises the following measures: • All retaining screws that are loosened during operation are made of stainless steel. • The nameplates are made of stainless steel. • A top coating is applied to various motor parts. • The flange contact surfaces and shaft ends are treated with a temporary anti-corro-
sion agent. • Additional measures for brakemotors.
A sticker labeled "KORROSIONSSCHUTZ" (corrosion protection) on the fan guard indi- cates special treatment has been applied.
Motors with forced cooling fan are not available with KS corrosion protection.
Catalog – DRS-GM 06/2009 15
2
OS surface pro- tection
Instead of the standard surface protection, the motors and gear units are available with surface protection OS1 to OS4 as an option. The special procedure 'Z' is also available. Special procedure 'Z' means that large surface recesses are sprayed with a rubber filling prior to painting.
Special protec- tive measures
Gearmotor output shafts can be treated with special optional protective measures for operation subject to severe environmental pollution or in particularly demanding appli- cations.
NOCO® Fluid As standard, SEW-EURODRIVE supplies NOCO® Fluid corrosion protection and lubri- cant with every hollow shaft gear unit. Use NOCO® Fluid when installing hollow shaft gear units. Using this fluid helps prevent contact corrosion and makes it easier to as- semble the drive at a later date. Furthermore, NOCO® Fluid is also suitable for protecting machined metal surfaces that do not have corrosion protection, including parts of shaft ends or flanges. You can order larger quantities of NOCO® Fluid from SEW-EURODRIVE. NOCO® Fluid is a food grade substance according to USDA-H1. You can tell that NOCO® Fluid is a food grade oil by the USDA-H1 identification label on its packaging.
Surface protection
1) NDFT (nominal dry film thickness) = Required coating thickness; Minimum thickness = 80 % NDFT; Ma- ximum thickness = 3 x NDFT (DIN EN ISO 12944-5)
Suitable for
About 50-70
• Normal ambient conditions • Relative humidity below 90 % • Max. surface temperature 120 °C • Corrosivity category C12)
2) In accordance with DIN EN ISO 12 944-2
OS1 1 × Dip primer 1 × Two-pack base coat 1 × Two-pack top coat
About 120-150
• Low environmental impact • Relative humidity max. 95 % • Max. surface temperature 120 °C • Corrosivity category C22)
OS2 1 × Dip primer 2 × Two-pack base coat 1 × Two-pack top coat
About 170-210
• Medium environmental impact • Relative humidity up to 100 % • Max. surface temperature 120 °C • Corrosivity category C32)
OS3 1 × Dip primer 2 × Two-pack base coat 2 × Two-pack top coat
About 220-270
• High environmental impact • Relative humidity up to 100 % • Max. surface temperature 120 °C • Corrosivity category C42)
OS4 1 × Dip primer 2 × Two-pack epoxy base layer 2 × Two-pack top coat
About 320 • Very high environmental impact • Relative humidity up to 100 % • Max. surface temperature 120 °C • Corrosivity category C5-12)
Measure Protection principle Suitable for
FKM oil seal (Viton) high quality material drives subject to chemical contamina- tion
Kanisil coating surface coating of the contact sur- face of the oil seal
severe environmental impact and in conjunction with FKM oil seal (Viton)
stainless steel output shaft surface protection with high-qual- ity material
particularly demanding applications in terms of surface protection
16 Catalog – DRS-GM 06/2009
2 Extended storage Product Description
2.3 Extended storage Variant You can also order gear units prepared for "extended storage." SEW-EURODRIVE rec-
ommends the "extended storage" type for storage periods longer than 9 months. In this case, a VCI corrosion inhibitor (volatile corrosion inhibitor) is added to the lubri- cant in these gear units. Please note that this VCI corrosion inhibitor is only effective in a temperature range of -25 °C ... +50 °C. The flange contact surfaces and shaft ends are also treated with an anti-corrosion agent. If not specified otherwise in your order, the gear unit will be supplied with OS1 surface protection. You can order OS2, OS3 or OS4 instead of OS1.
Storage condi- tions
Observe the storage conditions specified in the following table for extended storage:
Surface protection Suitable for
OS1 Low environmental impact
OS2 Medium environmental impact
OS3 High environmental impact
OS4 Very high environmental impact
The gear units must remain tightly sealed until taken into operation to prevent the VCI corrosion protection agent from evaporating. Gear units will be supplied with an oil fill according to the mounting position (M1 ... M6) and are ready for operation. Check the oil level before you start operating the gear unit for the first time!
Climate zone Packaging1) Storage location2) Storage duration
Temperate (Europe, USA, Canada, China and Russia, excluding tropical zones)
Packed in containers, with desiccant and moisture indi-
cator sealed in the plastic wrap.
Under roof, protected against rain and snow, no shock loads.
Up to 3 years with regular checks of the packaging and
moisture indicator (rel. humid- ity < 50 %).
Open
Roofed, enclosed at constant temperature and atmospheric humidity (5 °C < ϑ< 60 °C, < 50 %
relative humidity). No sudden temperature fluctuations. Controlled
ventilation with filter (free from dust and dirt). Pro- tected against aggressive vapors and shocks.
2 years or more with regular inspections. Check for cleanli- ness and mechanical damage during inspection. Check corro-
sion protection.
Tropical (Asia, Africa, Central and South America, Australia, New Zea- land excluding tem- perate zones)
Packed in containers, with desiccant and moisture indi-
cator sealed in the plastic wrap.
Protected against insect damage and mildew by
chemical treatment.
Under roof, protected against rain and shocks.
Up to 3 years with regular checks of the packaging and
moisture indicator (rel. humid- ity < 50 %).
Open
Roofed, enclosed at constant temperature and atmospheric humidity (5 °C < ϑ< 50°C, < 50 %
relative humidity). No sudden temperature fluctuations. Controlled
ventilation with filter (free from dust and dirt). Pro- tected against aggressive vapors and shocks. Pro-
tected against insect damage.
2 years or more with regular inspections. Check for cleanli- ness and mechanical damage during inspection. Check corro-
sion protection.
1) Packaging must be carried out by an experienced company using the packaging materials that have been explicitly specified for the particular application.
2) SEW-EURODRIVE recommends to store the gear units according to the mounting position.
Catalog – DRS-GM 06/2009 17
2
2.4 Condition monitoring: Oil aging and vibration sensor DUO10A diagnostics unit (Oil aging sensor) Gear unit oil diag- nostics through thermal analysis
The DUO10A diagnostic unit allows for diagnostic analysis as a means of preventive maintenance. The DUO10A diagnostic unit determines the individual, remaining service life of the oil based on the known service life curves and the oil temperature. The diag- nostic unit consists of a temperature sensor and the actual evaluation unit. The remain- ing service life and the temperature of the oil can be read off via the display at the eval- uation unit. The diagnostic unit is characterized by simple operation and user-friendly handling.
DUV10A diagnostics unit (vibration sensor) Roller bearing diagnostics by means of vibration analysis
The DUV10A diagnostic unit monitors roller bearings, gearings for imbalance, and pos- sible damages. Vibration analysis is used to detect possible damages at an early stage. This device allows for permanent vibration monitoring. The condition and development of the damage can be directly read on the device, or can be visualized externally using switch outputs.
18 Catalog – DRS-GM 06/2009
3 Gear unit and options – unit designations Unit Designations and Variants
3 Unit Designations and Variants 3.1 Gear unit and options – unit designations Helical gear units
Parallel-shaft helical gear units
Designation RX.. Single-stage foot-mounted design RXF.. Single-stage B5 flange-mounted design R.. Foot-mounted design R..F Foot and B5-flange mounted design RF.. B5 flange-mounted design RZ.. B14 flange-mounted design RM.. B5 flange-mounted design with extended bearing hub
Designation F.. Foot-mounted design FA..B Foot-mounted, hollow shaft FH..B Foot-mounted, hollow shaft with shrink disk FV..B Foot-mounted, hollow shaft with splined hollow shaft to DIN
5480 FF.. B5 flange-mounted design FAF.. B5 flange-mounted design and hollow shaft FHF.. B5 flange-mounted and hollow shaft with shrink disk FVF.. B5 flange-mounted design and hollow shaft with splined hollow
shaft to DIN 5480 FA.. Hollow shaft FH.. Hollow shaft with shrink disk FT.. Hollow shaft with TorqLOC® hollow shaft mounting system FV.. Hollow shaft with splining to DIN 5480 FAZ.. B14 flange-mounted design and hollow shaft FHZ.. B14 flange-mounted and hollow shaft with shrink disk FVZ.. B14 flange-mounted design and hollow shaft with splined hol-
low shaft to DIN 5480
Catalog – DRS-GM 06/2009 19
3Gear unit and options – unit designations Unit Designations and Variants
3
Designation K.. Foot-mounted design KA..B Foot-mounted, hollow shaft KH..B Foot-mounted, hollow shaft with shrink disk KV..B Foot-mounted, hollow shaft with splined hollow shaft to DIN
5480 KF.. B5 flange-mounted design KAF.. B5 flange-mounted design and hollow shaft KHF.. B5 flange-mounted and hollow shaft with shrink disk KVF.. B5 flange-mounted design and hollow shaft with splined hollow
shaft to DIN 5480 KA.. Hollow shaft KH.. Hollow shaft with shrink disk KT.. Hollow shaft with TorqLOC® hollow shaft mounting system KV.. Hollow shaft with splining to DIN 5480 KAZ.. B14 flange-mounted design and hollow shaft KHZ.. B14 flange-mounted and hollow shaft with shrink disk KVZ.. B14 flange-mounted design and hollow shaft with splined hol-
low shaft to DIN 5480
Designation S.. Foot-mounted design SF.. B5 flange-mounted design SAF.. B5 flange-mounted design and hollow shaft SHF.. B5 flange-mounted and hollow shaft with shrink disk SA.. Hollow shaft SH.. Hollow shaft with shrink disk ST.. Hollow shaft with TorqLOC® hollow shaft mounting system SAZ.. B14 flange-mounted design and hollow shaft SHZ.. B14 flange-mounted and hollow shaft with shrink disk
20 Catalog – DRS-GM 06/2009
3 Gear unit and options – unit designations Unit Designations and Variants
Spiroplan® gear units For all gear unit sizes (W..10 to W..47):
Only for gear unit sizes 37 and 47 (W..37 and W 47):
Options R, F and K gear units:
K, S and W gear units:
F gear units:
Designation W.. Foot-mounted design WF.. Flange-mounted design WAF.. Flange-mounted design and hollow shaft WA.. Hollow shaft
Designation WA..B Foot-mounted, hollow shaft WH..B Foot-mounted, hollow shaft with shrink disk WHF.. Flange-mounted, hollow shaft with shrink disk WH.. Hollow shaft with shrink disk WT.. Hollow shaft with TorqLOC® hollow shaft mounting system
Designation /R Reduced backlash
Designation /T With torque arm
Designation /G With rubber buffer
Designation Option /DUO Diagnostic Unit Oil = Oil aging sensor /DUV Diagnostic Unit Vibration = Vibration sensor
Catalog – DRS-GM 06/2009 21
3Unit designations for AC motors and options Unit Designations and Variants
3
3.2 Unit designations for AC motors and options AC motor series
Output types
Designation DRS.. Motor, standard efficiency, 50 Hz DRE.. Energy efficient motor, high efficiency, 50 Hz DRP.. Energy efficient motor, premium efficiency, 50 Hz ...71 to 315 Sizes:
71 / 80 / 90 / 100 / 112, 132 / 160 / 180 / 225 / 315 ..K to L Lengths:
K= very short / S = short / M = medium / L = long MC/LC = Lengths of rotors with copper cage
Number of poles 4
Designation Option /FI IEC foot-mounted motor with specification of shaft height /FG 7 Series integral motor, as stand-alone motor /FF IEC flange-mounted motor with bore holes /FT IEC flange motor with threads /FL General flange-mounted motor (other than IEC) /FM 7 series integral gearmotor with IEC feet, with specification of
shaft height if required /FE IEC flange-mounted motor with bore holes and IEC feet, with
specification of shaft height /FY IEC flange-mounted motor with thread and IEC feet, with
specification of shaft height /FK General flange-mounted motor (other than IEC) with feet, with
specification of shaft height if required /FC C-face flange-mounted motor, dimensions in inch
22 Catalog – DRS-GM 06/2009
3 Unit designations for AC motors and options Unit Designations and Variants
Mechanical attachments
Temperature sensors/detection
Designation Option BE.. Spring-loaded brake with size specification HR Manual brake release of the brake, automatic disengaging
function HF Manual brake release, lockable /RS Backstop /MSW MOVI-SWITCH®
/MI Motor identification for MOVIMOT®
/MM03MM40 MOVIMOT®
Designation Option /TF Temperature sensor (positive coefficient thermistor or PTC re-
sistor) /TH Thermostat (bimetallic switch) /KY One KTY84 - 130 sensor /PT One / three PT100 sensor(s)
Designation Option /ES7S /EG7S /EH7S Mounted speed sensor with sin/cos interface /ES7R EG7R Mounted speed sensor with TTL (RS-422) interface,
U = 9 - 26 V /EI7C /EI7S Mounted speed sensor with HTL or sin/cos interface /EI76 /EI72 /EI71 Mounted speed sensor with HTL interface and few periods /AS7W /AG7W Mounted absolute encoder, RS-485 interface (multi-turn) /AS7Y /AG7Y /AH7Y Mounted absolute encoder, SSI interface (multi-turn) /AI7W Mounted absolute encoder with SEW interface /ES7A /EG7A Mounting adapter for encoders from the SEW portfolio /XV.A Mounting adapter for non-SEW encoders /XV.. Mounted non-SEW encoders
Catalog – DRS-GM 06/2009 23
3Unit designations for AC motors and options Unit Designations and Variants
3
Ventilation
Bearing
Designation Option /IS Integrated plug connector /ASB. HAN 10ES plug connector on terminal box with two-clamp clo-
sure (cage clamps on motor end) /ACB. HAN 10E plug connector on terminal box with two-clamp clo-
sure (crimp contacts on motor end) /AMB. /ABB. HAN Modular 10B plug connector on terminal box with two-
clamp closure (crimp contacts on motor end) /ASE. HAN 10ES plug connector on terminal box with single-clamp
closure (cage clamps on motor end) /ACE. HAN 10ES plug connector on terminal box with single-clamp
closure (crimp contacts on motor end) /AME. /ABE. HAN Modular 10B plug connector on terminal box with single-
clamp closure (crimp contacts on motor end) /ASK. HAN 10ES ECOFAST® plug connector on terminal box with
single-clamp closure (cage clamp on motor end), additionally with mounting screws for optional carrier plate
/KCC Terminal strip with cage clamps /KC1 C1 profile compliant connection of the DR80 overhead trolley
drive (VDI guideline 3643)
Designation Option /V Forced cooling fan /Z Additional inertia (flywheel fan) /AL Metal fan /U Non-ventilated (without fan) /OL Non-ventilated (closed B side) /C Protection canopy for the fan guard /LF Air filter
Designation Option /NS Relubrication device (for DR.315 only) /ERF Reinforced bearing A-side with roller bearing (for DR.315 only) /NIB Insulated bearing B-side (for DR.315 only)
24 Catalog – DRS-GM 06/2009
3 Unit designations for AC motors and options Unit Designations and Variants
Condition monitoring
Explosion-proof motors
Designation Option /DUB Diagnostic unit brake = brake monitoring /DUV Diagnostic Unit Vibration = Vibration sensor
Designation Option /2GD Motors according to 94/9/EC, category 2 (gas/dust) /3GD Motors according to 94/9/EC, category 3 (gas/dust) /3D Motors according to 94/9/EC, category 3 (dust) /VE Forced-cooling fan for motors according to 94/9/EC, category 3
(gas/dust)
Designation Option /DH Condensation drain hole /RI Reinforced winding insulation /2W 2nd shaft end on the motor/brakemotor
Catalog – DRS-GM 06/2009 25
3Sample unit designation for a DR gearmotor Unit Designations and Variants
3
3.3 Sample unit designation for a DR gearmotor The unit designation of the gearmotor starts from the component on the output end. For instance, a multi-staged helical-bevel gearmotor with thermistor sensor in the motor winding has the following unit designation:
Other examples: • RF 97 /R DRS100M4 BE2 HR
– Gear unit type: Reduced backlash (/ R) helical gear unit in flange-mounted ver- sion
– Gear unit size: 97 – Motor series: DRS standard motor – Motor size 100M, 4-pole – Motor options: BE2 brake with self-reengaging manual brake release (HR)
• FAF 47 /R DRS90L4 BE2 /C – Gear unit type: Reduced backlash (/ R) parallel-shaft helical gear unit in B5
flange-mounted version with hollow shaft – Gear unit size: 47 – Motor series: DRS standard motor – Motor size 90L, 4-pole – Motor options: BE2 brake and protection canopy for the fan guard (/ C)
K 107 R 77 DRS 100M4 /TF
Motor option temperature sensor TF
Motor size 100, 4-pole, length M
Motor series DRS standard motor
Gear unit size 77 2. Gear unit
Gear unit series R
Gear unit type K
65702AXX Figure 1: Sample unit designation for a DR gearmotor
K107 R77 DRS100M4/TF
3.4 Gearmotor variants
Helical gearmo- tors
The following versions of helical gearmotors can be supplied:
The types described in this section refer to DR gearmotors from SEW-EURODRIVE. They also apply to gear units without motors (without DR).
60382AXX
R..DR.. Foot-mounted helical gearmotor
RF..DR.. Helical gearmotor in B5 flange-mounted version
RZ..DR.. Helical gearmotor in B14 flange-mounted version
RM..DR.. B5 flange-mounted helical gearmotor with extended bearing hub
Catalog – DRS-GM 06/2009 27
3
The following variants of parallel-shaft helical gearmotors can be supplied:
60383AXX
FA..B DR.. Foot-mounted parallel-shaft helical gearmotor with hollow shaft
FV..B DR.. Foot-mounted parallel-shaft gearmotor with hollow shaft and splin- ing according to DIN 5480
FH..B DR.. Foot-mounted parallel-shaft helical gearmotor with hollow shaft and shrink disk
FF..DR.. B5 flange-mounted parallel-shaft helical gearmotor
FAF..DR.. Parallel shaft helical gearmotor in B5 flange-mounted design with hollow shaft
FVF..DR.. Parallel-shaft helical gearmotor in B5 flange-mounted design with hollow shaft and splining according to DIN 5480
28 Catalog – DRS-GM 06/2009
60396AXX
FA..DR.. Parallel-shaft helical gearmotor with hollow shaft
FV..DR.. Parallel-shaft helical gearmotor with hollow shaft and splining accord- ing to DIN 5480
FH..DR.. Parallel-shaft helical gearmotor with hollow shaft and shrink disk
FT..DR.. Parallel-shaft helical gearmotor with hollow shaft and TorqLOC® hol- low shaft mounting system
FAZ..DR.. Parallel-shaft helical gearmotor in B14 flange-mounted design with hollow shaft
FVZ..DR.. Parallel-shaft helical gearmotor in B14 flange-mounted design with hollow shaft and splining according to DIN 5480
FHZ..DR.. Parallel-shaft helical gearmotor in B14 flange-mounted version with hollow shaft and shrink disk
Catalog – DRS-GM 06/2009 29
3
60397AXX
KV..B DR.. Foot-mounted helical-bevel gearmotor unit with hollow shaft and splining according to DIN 5480
KH..B DR.. Foot-mounted helical-bevel gearmotor with hollow shaft and shrink disk
KF..DR.. Helical-bevel gearmotor in B5 flange-mounted design
KAF..DR.. Helical-bevel gearmotor in B5 flange-mounted design with hollow shaft
KVF..DR.. Helical-bevel gearmotor in B5 flange-mounted design with hollow shaft and splining according to DIN 5480
30 Catalog – DRS-GM 06/2009
60398AXX
KHF..DR.. Helical-bevel gearmotor in B5 flange-mounted version with hollow shaft and shrink disc
KA..DR.. Helical-bevel gearmotor with hollow shaft
KV..DR.. Helical-bevel gearmotor with hollow shaft and splining according to DIN 5480
KH..DR.. Helical-bevel gearmotor with hollow shaft and shrink disk
KT..DR.. Helical-bevel gearmotor with hollow shaft and TorqLOC® hollow shaft mounting system
KAZ..DR.. Helical-bevel gearmotor in B14 flange-mounted design with hollow shaft
KVZ..DR.. Helical-bevel gearmotor in B14 flange-mounted design with hollow shaft and splining according to DIN 5480
KHZ..DR.. Helical-bevel gearmotor in B14 flange-mounted version with hollow shaft and shrink disk
Catalog – DRS-GM 06/2009 31
3
60399AXX
SAF..DR.. Helical-worm gearmotor in B5 flange-mounted design with hollow shaft
SHF..DR.. Helical-worm gearmotor in B5 flange-mounted design with hollow shaft and shrink disk
32 Catalog – DRS-GM 06/2009
60400AXX
SH..DR.. Helical-worm gearmotor with hollow shaft and shrink disk
ST..DR.. Helical-worm gearmotor with hollow shaft and TorqLOC® hollow shaft mounting system
SAZ..DR.. Helical-worm gearmotor in B14 flange-mounted design with hollow shaft
SHZ..DR.. Helical-worm gearmotor in B14 flange-mounted design with hollow shaft and shrink disk
Catalog – DRS-GM 06/2009 33
3
Spiroplan® gear- motors
The following variants of Spiroplan® gearmotors size W..10 to W..47 are available:
60401AXX
WAF..DR.. Spiroplan® gearmotor in flange-mounted design with hollow shaft
34 Catalog – DRS-GM 06/2009
Additionally, the following variants of Spiroplan® gearmotors size W..37 and W..47 are available:
62643AXX
WA..B DR.. Foot-mounted Spiroplan® gearmotor with hollow shaft
WH..B DR.. Foot-mounted Spiroplan® gearmotor with hollow shaft and shrink disk
WHF.. DR.. Spiroplan® gearmotor in flange-mounted design with hollow shaft and shrink disk
WH.. DR.. Spiroplan® gearmotor with hollow shaft and shrink disk
WT.. DR.. Spiroplan® gearmotor with hollow shaft and TorqLOC®
Catalog – DRS-GM 06/2009 35
4
4 Project Planning for Drives 4.1 Additional documentation
In addition to the information in this manual, SEW-EURODRIVE offers extensive docu- mentation covering the entire topic of electrical drive engineering. These are mainly the publications in the "Drive Engineering – Practical Implementation" series as well as the manuals and catalogs for electronically controlled drives. You will find additional links to a wide selection of our documentation in many languages for download on the SEW-EURODRIVE homepage (http://www.sew-eurodrive.com). The list below includes other documents that are of interest in terms of project planning. You can order these publications from SEW-EURODRIVE.
Drive Engineer- ing – Practical Implementation
• Project Planning for Drives • Controlled AC Drives • EMC in Drive Engineering • Explosion-Proof Drives to EU Directive 94/9/EC • SEW Disk Brakes
Electronics docu- mentation
36 Catalog – DRS-GM 06/2009
4 Drive selection data Project Planning for Drives
4.2 Drive selection data In order to be able to precisely define the components for your drive, certain data is re- quired. These are:
Determining the motor data
First, in order to select the correct drive, you require the data (mass, speed, setting range, etc.) of the machine to be driven. These data help determine the required power, torque and speed. Refer to the "Drive Engineering – Practical Implementation, Drive Planning" publication or the PRODRIVE®
project planning software for assistance.
Selecting the proper drive
The appropriate drive can be determined with the calculated power and speed and with other mechanical requirements taken into account.
Drive selection data Your entry
namin Minimum output speed [1/min]
namax Maximum output speed [1/min]
Pa at namin Output power at minimum output speed [kW]
Pa at namax Output power at maximum output speed [kW]
Ma at namin Output torque at minimum output speed [Nm]
Ma at namax Output torque at maximum output speed [Nm]
FR
Overhung loads acting on the output shaft. Force application in center of shaft end is assumed. If, spec- ify the exact application point giving the application angle and direction of rotation of the shaft for recalcu- lation.
[N]
FA Axial load (tension and compression) on the output shaft [N]
JLast Mass moment of inertia to be driven [10-4 kgm2]
R, F, K, S, W M1 - M6
Required gear unit type and mounting position (→ Sec. Mounting positions, churning losses) -
IP.. Required degree of protection -
ϑUmg Ambient temperature [°C]
H Installation altitude [m above sea level]
S.., ..% cdf Duty type and cyclic duration factor (cdf) or exact load cycle can be entered. -
Z Starting frequency; alternatively, exact load cycle can be specified [1/h]
fline Line frequency [Hz]
MB Required braking torque [Nm]
For inverter operation: Required control type and setting range
Catalog – DRS-GM 06/2009 37
4
4.3 Project planning procedure Example The following flow diagram illustrates the project planning procedure for a positioning
drive. The drive consists of a gearmotor that is powered by an inverter.
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
Catalog – DRS-GM 06/2009 39
5Efficiency of SEW gear units Project Planning for Gear Units
5
5 Project Planning for Gear Units 5.1 Efficiency of SEW gear units General informa- tion
The efficiency of gear units is mainly determined by the gearing and bearing friction. Keep in mind that the starting efficiency of a gear unit is always less than its efficiency at operating speed. This factor is especially pronounced in the case of helical-worm and Spiroplan® right-angle gearmotors.
R, F, K gear units The efficiency of helical, parallel-shaft and helical-bevel gear units varies with the num- ber of gear stages, between 94 % (3-stage) and 98 % (1-stage).
S and W gear units
The gearing in helical-worm and Spiroplan® gear units produces a high proportion of sliding friction. As a result, these gear units have higher gearing losses than R, F or K gear units and thus be less efficient.
The efficiency depends on the following factors: • Gear ratio of the helical-worm or Spiroplan® stage • Input speed • Gear unit temperature
Helical-worm gear units from SEW-EURODRIVE are helical gear/worm combinations that are significantly more efficient than plain worm gear units. The efficiency may reach η < 0.5 if the helical-worm or Spiroplan® stage has a very high ratio step.
Self-locking Retrodriving torques on helical-worm or Spiroplan® gear units produce an efficiency of η = 2 - 1//η, which is significantly less favorable than the forward efficiency η. The heli- cal-worm or Spiroplan® gear unit is self-locking if the forward efficiency η ≤ 0.5. Some Spiroplan® gear units are also dynamically self-locking. Contact SEW-EURODRIVE if you wish to make technical use of the braking effect of self-locking characteristics.
Do not use the self-locking effect of helical-worm and Spiroplan® gear units as sole safe- ty function for hoists.
40 Catalog – DRS-GM 06/2009
5 Efficiency of SEW gear units Project Planning for Gear Units
Run-in phase The tooth flanks of new helical-worm and Spiroplan® gear units are not yet completely smooth. That fact makes for a greater friction angle and less efficiency than during later operation. This effect intensifies with increasing gear unit ratio. Subtract the following values from the listed efficiency during the run-in phase:
The run-in phase usually lasts 48 hours. Helical-worm and Spiroplan® gear units achieve their listed rated efficiency values when: • the gear unit has been completely run-in, • the gear unit has reached nominal operating temperature, • the recommended lubricant has been filled in and • the gear unit is operating in the rated load range.
Churning losses In certain gear unit mounting positions (→ Sec. "Mounting positions and important order information"), the first gearing stage is completely immersed in the lubricant. When the circumferential velocity of the input stage is high, considerable churning losses occur in larger gear units that must be taken into account. Contact SEW-EURODRIVE if you wish to use gear units of this type. If possible, use mounting position M1 for R, K and S gear units to keep the churning loss- es low.
Worm
Spiroplan® W10 to W30 Spiroplan® W37 and W47
i range η reduction i range η reduction
approx. 35 ... 75 approx. 15% - -
approx. 20 ... 35 approx. 10% - -
approx. 10 ... 20 approx. 8% approx. 30 ... 70 approx. 8%
About 8 approx. 5% approx. 10 ... 30 approx. 5%
About 6 approx. 3% approx. 3 ... 10 approx. 3%
Catalog – DRS-GM 06/2009 41
5
5.2 Oil expansion tank The oil expansion tank allows the lubricant/air space of the gear unit to expand. This means no lubricant can escape the breather valve at high operating temperatures. SEW-EURODRIVE recommends to use oil expansion tanks for gear units and gearmo- tors in M4 mounting position and for input speeds > 2000 min-1.
The oil compensator is provided as assembly kit. It is intended for mounting onto the gearmotor. However, if installation space is limited or if the expansion tank is intended for gear units without motor, it can be mounted to nearby machine parts.
For further information, please contact your SEW-EURODRIVE sales representative.
62658AXX Figure 2: Oil expansion tank
42 Catalog – DRS-GM 06/2009
5.3 Multi-stage gearmotors General informa- tion
You can achieve extremely low output speeds by using multi-stage gear units or multi- stage gearmotors. This means an additional second gear unit, usually a helical gear unit, is installed in front of the gear unit or between gear unit and motor. The resulting total reduction ratio may make gear unit protection necessary.
Limiting the motor power
You have to reduce the maximum output motor power according to the maximum per- mitted output torque on the gear unit (Ma max). For this purpose you first have to deter- mine the maximum permitted motor torque (MN zul). You can calculate the maximum permitted motor torque as follows:
Use this maximum permitted motor torque MN zul and the load diagram of the motor to determine the associated value for the motor current. Take suitable measures to prevent the continuous current consumption of the motor from exceeding the previously determined value for the motor torque MN zul. A suitable measure is, for example, to set the trip current of the motor protection switch to this max- imum current value. A motor protection switch offers the option to compensate for a brief overload, for example during the startup phase of the motor. A suitable measure for in- verter drives is to limit the output current of the inverter according to the determined mo- tor current.
Checking brake torques
If you use a multi-stage brakemotor, you have to limit the braking torque (MB) according to the maximum permitted motor torque MN zul. The maximum permitted braking torque is 200 % MN zul.
MB max ≤ 200 % MN zul
If you have questions on the starting frequency of multi-stage brake motors, please con- sult SEW-EURODRIVE.
Avoiding block- age
Blockage on the output side of the multi-stage gear unit or multi-stage gearmotor is not permitted. The reason is that indeterminable torques and uncontrolled overhung and ax- ial loads may occur. The gear units may suffer irreparable damage as a result.
59717AEN
a max
i ges
Consult SEW-EURODRIVE if blockages of the multi-stage gear unit or multi-stage gear- motor cannot be avoided due to the application.
Catalog – DRS-GM 06/2009 43
5
5.4 Service factor Determining the service factor
The effect of the driven machine on the gear unit is taken into account to a sufficient level of accuracy using the service factor fB. The service factor is determined according to the daily operating time and the starting frequency Z. Three load classifications are taken into account depending on the mass acceleration factor. You can read off the service factor applicable to your application in Figure 3. The service factor determined from this diagram must be smaller than or equal to the service factor according to the selection tables.
Load classification There are three load classifications: (I) Uniform, permitted mass acceleration factor ≤ 0.2 (II) Non-uniform, permitted mass acceleration factor ≤ 3 (III) Non-uniform, permitted mass acceleration factor ≤ 10
00656BXX Figure 3: Service factor fB
* Daily operating time in hours/day ** Starting frequency Z: The cycles include all starting and braking procedures as well as changeovers
from low to high speed and vice versa.
M f Ma • b a max
fB
24* 16* 8*
Mass acceleration factor
The mass acceleration factor is calculated as follows:
"All external mass moments of inertia" are the mass moments of inertia of the driven ma- chine and the gear unit, scaled down to the motor speed. The calculation for scaling down to motor speed is performed using the following formula:
"Mass moment of inertia at the motor end" is the mass moment of inertia of the motor and, if installed, the brake and the flywheel fan (Z fan). Service factors fB 1.8 may occur with large mass acceleration factors (> 10), high levels of backlash in the transmission elements or large overhung loads. Contact SEW-EURO- DRIVE in such cases.
Service factor: SEW fB
The method for determining the maximum permitted continuous torque Mo max and us- ing this value to derive the service factor fB = Mo max / Mo is not defined in a standard and varies greatly from manufacturer to manufacturer. Even at a SEW service factor of fB = 1, the gear units afford an extremely high level of safety and reliability in the fatigue strength range (exception: Wearing of the worm wheel of the helical-worm gear unit). The service factor may differ from specifications of other gear unit manufacturers. If you are in doubt, contact SEW-EURODRIVE for more detailed information on your specific drive.
Example Mass acceleration factor 2.5 (load classification II), 14 hours/day operating time (read off at 16 h/d) and 300 cycles/hour Figure 3 result in a service factor fB = 1.51. According to the selection tables, the selected gearmotor must have an SEW fB value of 1.51 or greater.
JX J n nM
= Mass moment of inertia scaled down to the motor shaft = Mass moment of inertia with reference to the output speed of the gear unit = Output speed of the gear unit = Motor speed
Mass acceleration factor = All external mass moments of inertia
Mass moment of inertia on the motor end
J = JX ( )n nM
5
Helical-worm gear unit
For helical-worm gear units, two additional service factors will have to be taken into con- sideration besides service factor fB derived from Figure 3. These are: • fB1 = Service factor from ambient temperature • fB2 = Service factor from cyclic duration factor
The additional service factors fB1 and fB2 can be determined by referring to the diagrams in Figure 4 . For fB1, the load classification is taken into account in the same way as for fB.
The total service factor for helical-worm gear units is calculated as follows:
Example The gearmotor with the service factor fB = 1.51 in the previous example is to be a helical- worm gearmotor. Ambient temperature ϑ = 40 °C → fB1 = 1.38 (read off at load classification II) Time under load = 40 min/h → cdf = 66.67% → fB2 = 0.95 The total service factor is fBtot = 1.51 • 1.38 • 0.95 = 1.98 According to the selection tables, the selected helical-worm gearmotor must have an SEW fB service factor of 1.98 or greater.
00657BXX Figure 4: Additional service factors fB1 and fB2
Contact SEW-EURODRIVE in case of temperatures below -20 °C (→ fB1).
fBges = fB • fB1 • fB2
-20 0-10 20 40 6020 8030 100 %ED40 50°C
fB1
60 • 100
5 Overhung and axial loads Project Planning for Gear Units
5.5 Overhung and axial loads Determining the overhung load
An important factor for determining the resulting overhung load is the type of transmis- sion element mounted to the shaft end. The following transmission element factors fZ have to be considered for various transmission elements.
The overhung load exerted on the motor or gear shaft is calculated as follows:
Permitted over- hung load
The basis for determining the permitted overhung loads is the computation of the rated bearing service life L10h of the anti-friction bearings (according to ISO 281). For special operating conditions, the permitted overhung loads can be determined with regard to the modified service life Lna on request. The permitted overhung loads FRa for the output shafts of foot-mounted gear units with a solid shaft are listed in the selection tables for gearmotors. Contact SEW-EURO- DRIVE in case of other versions.
Transmission element Transmission element factor fZ Comments
Gears 1.15 < 17 teeth
Narrow V-belt pulleys 1.75 Influence of the pre-tensioning force
Flat-belt pulleys 2.50 Influence of the pre-tensioning force
Toothed belt pulleys 1.50 Influence of the pre-tensioning force
FR = Overhung load in N
Md = Torque in Nm
d0 = Mean diameter of the installed transmission element in mm
fZ = Transmission element factor
0
• • fZ
The values refer to force applied to the center of the shaft end (in right-angle gear units as viewed onto drive end). The values for the force application angle α and direction of rotation are based on the most unfavorable conditions. • Only 50% of the FRa value specified in the selection tables is permitted in mounting
position M1 with wall attachment on the front face for K and S gear units. • Helical-bevel gearmotors K167 and K187 in mounting positions M1 to M4: A maxi-
mum of 50% of the overhung load FRa specified in the selection tables in the case of gear unit mounting other than as shown in the mounting position sheets.
• Foot and flange-mounted helical gearmotors (R..F): A maximum of 50% of the over- hung load FRa specified in the selection tables for torque transmission via flange mounting are permitted.
Catalog – DRS-GM 06/2009 47
5
Higher permitted overhung loads
Exactly considering the force application angle α and the direction of rotation makes it possible to achieve a higher overhung load. Higher output shaft loads are permitted if heavy duty bearings are installed, especially with R, F and K gear units. Contact SEW- EURODRIVE in such cases.
Definition of the force application
The force application is defined according to the following figure:
Permitted axial load
If there is no overhung load, then an axial force FA (tension or compression) amounting to 50% of the overhung load given in the selection tables is permitted. This condition ap- plies to the following gearmotors: • Helical gearmotors except for R..137... to R..167... • Parallel-shaft and helical-bevel gearmotors with solid shaft except for F97... • Helical-worm gearmotors with solid shaft
59824AXX Figure 5: Definition of the force application
FX = Permitted overhung load at point x [N]
FA = Permitted axial load [N]
0° 0°
α α
Contact SEW-EURODRIVE for all other types of gear units and in the event of signifi- cantly greater axial forces or combinations of overhung load and axial force.
48 Catalog – DRS-GM 06/2009
5 Overhung and axial loads Project Planning for Gear Units
On the input side: Overhung load conversion for off-center force application
Important: only applies to gear units with input shaft assembly: Please contact SEW-EURODRIVE for off-center force application on the drive end.
On the output side: Overhung load conversion for off-center force application
The permitted overhung loads must be calculated according the selection tables using the following formulae in the event that force is not applied at the center of the shaft end. The smaller of the two values FxL (according to bearing life) and FxW (according to shaft strength) is the permitted value for the overhung load at point x. Note that the calcula- tions apply to Ma max.
FxL according to bear- ing service life
FxW from the Shaft strength:
F = FxL Ramax • a
b + x [N]
F =xW c
f + x [N]
FRa = Permitted overhung load (x = l/2) for foot-mounted gear units according to the selection tables in [N]
x = Distance from the shaft shoulder to the force application point in [mm]
a, b, f = Gear unit constant for overhung load conversion [mm]
c = Gear unit constant for overhung load conversion [Nmm]
02356BXX Figure 6: Overhung load Fx for off-center force application
x
x
FRa
5
Values for types not listed are available on request.
Gear unit type a [mm]
b [mm]
c [Nmm]
f [mm]
d [mm]
I [mm]
43.5 52.5 60.5 73.5 86.5
102.5
1.51 • 105
2.42 • 105
1.95 • 105
7.69 • 105
1.43 • 106
2.47 • 106
34.2 39.7
40 50 60 80
100 120
R07 R17 R27 R37 R47 R57 R67 R77 R87 R97 R107 R137 R147 R167
72.0 88.5
52.0 68.5 81.5 93
107 112.5 133.5 133.7 166.7 195.5 215.5 258.5 297 345
4.67 • 104
6.527 • 104
1.56 • 105
1.24 • 105
2.44 • 105
3.77 • 105
2.65 • 105
3.97 • 105
8.47 • 105
1.06 • 106
2.06 • 106
4.58 • 106
8.65 • 106
1.26 • 107
11 17
11.8 0
33 0
20 20 25 25 30 35 35 40 50 60 70 90 110 120
40 40 50 50 60 70 70 80
100 120 140 170 210 210
F27 F37 F47 F57 F67 F77 F87 F97 F107 F127 F157
109.5 123.5 153.5 170.7 181.3 215.8 263 350
373.5 442.5 512
288.5 337.5 407
1.13 • 105
1.07 • 105
1.40 • 105
2.70 • 105
4.12 • 105
7.87 • 105
1.06 • 106
2.09 • 106
4.23 • 106
9.45 • 106
1.05 • 107
0 0 0 0 0 0 0 0 0 0 0
25 25 30 35 40 50 60 70 90 110 120
50 50 60 70 80
100 120 140 170 210 210
K37 K47 K57 K67 K77 K87 K97 K107 K127 K157 K167 K187
123.5 153.5 169.7 181.3 215.8 252 319
373.5 443.5 509
288.5 338.5 404
496.5 560.5
1.30 • 105
1.40 • 105
2.70 • 105
4.12 • 105
7.69 • 105
1.64 • 106
2.8 • 106
5.53 • 106
8.31 • 106
1.18 • 107
1.88 • 107
3.04 • 107
0 0 0 0 0 0 0 0 0 0 0 0
25 30 35 40 50 60 70 90 110 120 160 190
50 60 70 80
W10 W20 W30 W37 W47
84.8 98.5
S37 S47 S57 S67 S77 S87 S97
118.5 130 150 184 224
281.5 326.3
221.5 256.3
6.0 • 104
1.33 • 105
2.14 • 105
3.04 • 105
5.26 • 105
1.68 • 106
2.54 • 106
40 50 60 70 90
120 140
5 RM gear units Project Planning for Gear Units
5.6 RM gear units Project planning You must take account of the higher overhung loads and axial forces when planning
projects with RM helical gearmotors with extended bearing housing. Observe the follow- ing project planning procedure:
02457BEN Figure 7: Project planning for RM gear units
M = F • XB R
Start of Project Planning
Determine the requirements of the application
• Performance • Torque • Output speed • Overhung load (FR) / axial load (Fa) • Lever arm (x-dimension)
Select minimum service factors, e.g.: •
•
Select gear-unit size based on minimum service factor:
f Bmin
Check overhung load (bearing /shaft)? FR FXL= FRa • a/(x+b)
Check overhung load (flange)? FR FXF= c F /(FF+x)
Select next larger gear unit
yes
no
no
no
yes
yes
yesAdditional features necessary?
no
a = Conversion factor from data table b = Conversion factor from data table c F = Gear-unit constants from data table Fa = Axial loads during operation FF = Gear-unit constants from data table FR = Overhung loads during operation FRa = Permitted overhung load (at x = 1000 mm) from data table FXF = Permitted overhung load on the housing (flange tensile strength)
FXL = Permitted overhung load according tobearing service life x = Distance between force application and shaft shoulder
Select next larger gear unit
F /M > 3 aa
Catalog – DRS-GM 06/2009 51
5
Permitted over- hung loads and axial forces
The permitted overhung loads FRa and axial forces FAa are specified for various service factors fB and nominal bearing service life L10h.
fBmin = 1.5; L10h = 10 000 h
fBmin = 2,0; L10h = 25 000 h
na [1/min]
< 16 16-25 26-40 41-60 61-100 101-160 161-250 251-400
RM57 FRa [N] 400 400 400 400 400 405 410 415
FAa [N] 18800 15000 11500 9700 7100 5650 4450 3800
RM67 FRa [N] 575 575 575 580 575 585 590 600
FAa [N] 19000 18900 15300 11900 9210 7470 5870 5050
RM77 FRa [N] 1200 1200 1200 1200 1200 1210 1210 1220
FAa [N] 22000 22000 19400 15100 11400 9220 7200 6710
RM87 FRa [N] 1970 1970 1970 1970 1980 1990 2000 2010
FAa [N] 30000 30000 23600 18000 14300 11000 8940 8030
RM97 FRa [N] 2980 2980 2980 2990 3010 3050 3060 3080
FAa [N] 40000 36100 27300 20300 15900 12600 9640 7810
RM107 FRa [N] 4230 4230 4230 4230 4230 4230 3580 3830
FAa [N] 48000 41000 30300 23000 18000 13100 9550 9030
RM137 FRa [N] 8710 8710 8710 8710 7220 5060 3980 6750
FAa [N] 70000 70000 70000 57600 46900 44000 35600 32400
RM147 FRa [N] 11100 11100 11100 11100 11100 10600 8640 10800
FAa [N] 70000 70000 69700 58400 45600 38000 32800 30800
RM167 FRa [N] 14600 14600 14600 14600 14600 14700 - -
FAa [N] 70000 70000 70000 60300 45300 36900 - -
na [1/min]
< 16 16-25 26-40 41-60 61-100 101-160 161-250 251-400
RM57 FRa [N] 410 410 410 410 410 415 415 420
FAa [N] 12100 9600 7350 6050 4300 3350 2600 2200
RM67 FRa [N] 590 590 590 595 590 595 600 605
FAa [N] 15800 12000 9580 7330 5580 4460 3460 2930
RM77 FRa [N] 1210 1210 1210 1210 1210 1220 1220 1220
FAa [N] 20000 15400 11900 9070 6670 5280 4010 3700
RM87 FRa [N] 2000 2000 2000 2000 2000 1720 1690 1710
FAa [N] 24600 19200 14300 10600 8190 6100 5490 4860
RM97 FRa [N] 3040 3040 3040 3050 3070 3080 2540 2430
FAa [N] 28400 22000 16200 11600 8850 6840 5830 4760
RM107 FRa [N] 4330 4330 4330 4330 4330 3350 2810 2990
FAa [N] 32300 24800 17800 13000 9780 8170 5950 5620
RM137 FRa [N] 8850 8850 8850 8830 5660 4020 3200 5240
FAa [N] 70000 59900 48000 37900 33800 31700 25600 23300
RM147 FRa [N] 11400 11400 11400 11400 11400 8320 6850 8440
FAa [N] 70000 60600 45900 39900 33500 27900 24100 22600
RM167 FRa [N] 15100 15100 15100 15100 15100 13100 - -
FAa [N] 70000 63500 51600 37800 26800 23600 - -
52 Catalog – DRS-GM 06/2009
Conversion fac- tors and gear unit constants
The following conversion factors and gear unit constants apply to calculating the permit- ted overhung load FxL at point x ≠ 1000 mm for RM gearmotors:
Additional weight RM gear units
Gear unit type a b cF (fB = 1.5) cF (fB = 2.0) FF
RM57 1047 47 1220600 1260400 277
RM67 1047 47 2047600 2100000 297.5
RM77 1050 50 2512800 2574700 340.5
RM87 1056.5 56.5 4917800 5029000 414
RM97 1061 61 10911600 11124100 481
RM107 1069 69 15367000 15652000 554.5
RM137 1088 88 25291700 25993600 650
RM147 1091 91 30038700 31173900 756
RM167 1089.5 89.5 42096100 43654300 869
Type Additional weight compared to RF with reference to the smallest RF flange Δm [kg]
RM57 12.0
RM67 15.8
RM77 25.0
RM87 29.7
RM97 51.3
RM107 88.0
RM137 111.1
RM147 167.4
RM167 195.4
Catalog – DRS-GM 06/2009 53
5Condition monitoring: Oil aging and vibration sensor Project Planning for Gear Units
5
5.7 Condition monitoring: Oil aging and vibration sensor DUO10A diagnostics unit (Oil aging sensor)
The diagnostics unit consists of a temperature sensor and the actual evaluation unit. The temperature sensor is screwed into a screw plug bore of the gear unit via an adapter system and connected to the evaluation unit. The service life curves of the oil grades common in SEW gear units are stored in the electronics of the evaluation unit. SEW-EURODRIVE can also customize any oil grade in the diagnostic unit. Standard parameterization is performed directly on the evaluation unit. During operation, the evaluation unit continuously calculates the remaining service life in days based on the oil temperature, i.e. the time until the next oil change. The re- maining service life is displayed directly on the evaluation unit. The expiration of the ser- vice life can also be transferred to a higher-level system via a binary signal and be eval- uated or visualized there. Other switch outputs signal when a prewarning stage has been reached, a preset temperature limit is exceeded or readiness for operation. The voltage supply is DC 24 V. The system operator no longer has to replace the oil within predefined intervals, but can adapt the replacement interval individually to the actual load. The benefits are reduced maintenance and service costs and increased system availability.
DUV10A diagnostics unit (vibration sensor) The DUV10A diagnostics unit measures the structure-borne noise and uses this value to calculate the frequency spectrum. The structure-born noise sensor and evaluation electronics are fully integrated in the diagnostic unit. Data, such as vibration accelera- tion, damage frequencies, etc., can be recorded, processed and evaluated decentral- ized without any expert knowledge. The damage progress of the diagnosis objects is in- dicated by the LEDs directly on the diagnostics unit. External visualization of the binary signals to the controller is also possible. A depth diagnosis can be displayed via the soft- ware. The diagnostics unit is attached to the gearmotor or motor using a fastening element. The position where the diagnostic unit is installed depends on the objects to be diag- nosed (gear unit/motor type, mounting position). The tightening torque for the screw connection is 7 Nm. The diagnostics unit can be used to monitor up to 5 different objects or 20 individual fre- quencies. The diagnostic unit can be used with both constant and variable speeds. To ensure correct diagnosis when using variable speeds, a 0...20 mA current loop or a pulse signal must be supplied. The voltage supply is DC 24 V. The parameters of the unit are set using the supplied software. When all data have been parameterized, a pulse test is carried out to check the signal level from the diagnostics object to the diagnostics unit. Next, all data is transferred to the sensor and a teach-in run can be performed. The teach-in is a self-learning process performed by the sensor under operating conditions. After successful teach-in, the unit is ready and enters mon- itoring mode. As the unit requires a certain measuring time at constant speed depending on the setting and number of objects to be monitored, you should consult SEW-EURO- DRIVE for applications where this time is < 16 seconds.
54 Catalog – DRS-GM 06/2009
6 General information regarding the mounting positions Mounting Positions and Important Order Information
6 Mounting Positions and Important Order Information 6.1 General information regarding the mounting positions Designation of the mounting positions SEW-EURODRIVE differentiates between six mounting positions M1 ... M6 for gear units, gearmotors and MOVIMOT® gearmotors. The following figure shows the position of the gear unit in mounting positions M1 ... M6.
03203AXX Figure 8: Depiction of mounting positions M1 ... M6
M1
M1
M1
M1
M1
M1
M4
M4
M4
M4
M4
M4
M3
M3
M3
M3
M3
M3
M6
M6
M6
M6
M6
M6
M5
M5
M5
M5
M5
M5
M2
M2
M2
M2
M2
M2
R..
F..
6
The following applies to all gear units and gear- motors
Observe the following notes for all gear units and gearmotors from SEW-EURODRIVE.
Output direction of rotation with back- stop
If the drive has an RS backstop, you have to indicate the direction of rotation of the out- put for the drive. The following definition applies:
In right-angle gear units, you also have to indicate whether the direction of rotation is given looking onto the A or B end.
Position of the out- put shaft and out- put flange
In right-angle gear units, you also have to indicate the position of the output shaft and the output flange: • A or B or AB
The following order information is required for R, F, K and S gear units and gearmotors in addition to the mounting position to exactly determine the design of the drive. This information is also required for Spiroplan® gearmotors (W gearmotors) that do not depend on a particular mounting position.
As viewed at the output shaft: Clockwise (CW) Counterclockwise (CCW)
60511AXX Figure 9: Output direction of rotation
CCW
CW
A
B
CCW
CW
60513AXX Figure 10: Position of the output shaft and the output flange
A
B
6 Important order information Mounting Positions and Important Order Information
Position of output end in right-angle gear units
In shaft mounted right-angle gear units with a shrink disk, you also have to indicate whether the A or B end is the output end. In Figure 11, the A end is the output end. The shrink disk is located opposite the output end. In shaft mounted right-angle gear units, the "output end" is equivalent to the "shaft posi- tion" of right-angle gear units with solid shaft.
60510AXX Figure 11: Position of the output end
A
B
You will find the permitted mounting surfaces (= hatched area) in the mounting position sheets (page 60 and the following pages). Example: Only the mounting surface at the bottom is possible with helical-bevel gear units K167/K187 in mounting positions M5 and M6.
M1 … M6M1 … M6
6
Position of the motor terminal box and the cable entry
The position of the motor terminal box has so far been specified indicated with 0°, 90°, 180° or 270° as viewed onto the fan guard = B-end (→ Figure 12). A change in the prod- uct standard EN 60034 specifies that the following designations will have to be used for terminal box positions for foot-mounted motors in the future: • As viewed onto the output shaft = A-end • Designation as R (right), B (bottom), L (left) and T (top) This new designation applies to foot-mounted motors without a gear unit in mounting po- sition B3 (= M1). The previous designation is maintained for gearmotors. Figure 12 shows both designations. Where the mounting position of the motor changes, R, B, L and T are rotated accordingly. In motor mounting position B8 (= M3), T is at the bottom. The position of the cable entry can be selected as well. The positions are "X" (= standard position), "1", "2" or "3" (→ Figure 12).
Unless indicated otherwise, you will receive the terminal box type 0° (R) with "X" cable entry. We recommend selecting cable entry "2" with mounting position M3.
Software support Not any cable entry position [X, 1, 2, 3] and terminal box position [ 0°(R), 90°(B), 180°(L), 270°(T)] can be chosen. Some additional features for the motor require a connection in- side the terminal box, which means this terminal box is larger than the standard terminal box due to the normative air gaps and creepage distances. The dimension sheets only depict the standard terminal box. For a thorough check of the possible positions of your drive, you can use the DRIVECAD software in DriveGate on the SEW-EURODRIVE website. • If you are already a registered DriveGate user: https://portal.drivegate.biz/drivecad • If you are not yet a registered DriveGate user: www.sew-eurodrive.de → DriveGate
login
60500AXX Figure 12: Position of terminal box and cable entry
270°
90°
3 1
180° (L)
• When the terminal box is in the 90° (B) position, check to see if the gearmotor has to be supported.
M1 … M6M1 … M6
6 Important order information Mounting Positions and Important Order Information
Sample orders
Changing the mounting posi- tion
Make sure to read the following information when you operate the gearmotor in a mount- ing position other than the one indicated in the order: • Adjust lubricant fill quantity to match the new mounting position • Adjust position of breather valve • For helical-bevel gearmotors: Contact the SEW-EURODRIVE customer service prior
to changing to mounting position M5 or M6 and when changing from M5 to M6 or vice versa.
• For helical-worm gearmotors: Contact the SEW-EURODRIVE customer service when changing to mounting position M2 or M3.
Type (Examples)
Mounting position
KA97DRS132S4 M4 B - 270° "2" -
KH107DRS132M4 M1 A - 180° "3" -
WF20DRS71M4 - A A 0° "X" -
KAF67A M3 A B - - -
Catalog – DRS-GM 06/2009 59
6Key to the mounting position sheets Mounting Positions and Important Order Information
6
6.3 Key to the mounting position sheets
Symbols used The following table shows the symbols used in the mounting position sheets and their meaning:
Churning losses
Displayed shaft No