sew eurodrive geared motor-drs

7/22/2019 Sew Eurodrive Geared Motor-drs

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Drive Technology \ Drive Automation \ System Integration \ Services

Catalog

DRS Gearmotors

Edition 06/2009 16840011 / EN


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SEW-EURODRIVEDriving the world


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Catalog DRS-GM 09/2009 3

Content

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1 Preface ............................................................................................................... 6

2 Product Description........................................................................................ 10

3 Unit Designations and Variants..................................................................... 18

4 Project Planning for Drives............................................................................ 35

5 Project Planning for Gear Units..................................................................... 39

6 Mounting Positions and Important Order Information ................................ 54

7 Design and Operating Notes.......................................................................... 86

8 Important Information about Tables and Dimension Sheets.................... 128

9 Helical Gearmotors ....................................................................................... 135

10 Parallel-Shaft Helical Gearmotors ............................................................... 281

11 Helical-Bevel Gearmotors ............................................................................ 403

12 Helical-Worm Gearmotors............................................................................ 525

13 SpiroplanGearmotors................................................................................ 627

14 AC Brakemotors Technical Data .............................................................. 663

15 Abbreviation Key and Index......................................................................... 673

M1 M6 M
http://einleitung.pdf/http://prodbeschr.pdf/http://projekt_getr.pdf/http://konstruktionshinw.pdf/http://bauformen_einl.pdf/http://r_getriebe.pdf/http://f_getriebe.pdf/http://k_getriebe.pdf/http://w_getriebe.pdf/http://s_getriebe.pdf/http://projekt_motfu.pdf/http://bauform_mblatt_mot.pdf/http://09185496six.pdf/http://09185496six.pdf/http://09185496six.pdf/http://09185496six.pdf/http://09185496six.pdf/http://bauform_mblatt_mot.pdf/http://bauform_mblatt_mot.pdf/http://projekt_motfu.pdf/http://projekt_motfu.pdf/http://s_getriebe.pdf/http://s_getriebe.pdf/http://w_getriebe.pdf/http://w_getriebe.pdf/http://k_getriebe.pdf/http://k_getriebe.pdf/http://f_getriebe.pdf/http://f_getriebe.pdf/http://r_getriebe.pdf/http://r_getriebe.pdf/http://bauformen_einl.pdf/http://bauformen_einl.pdf/http://konstruktionshinw.pdf/http://konstruktionshinw.pdf/http://projekt_getr.pdf/http://projekt_getr.pdf/http://prodbeschr.pdf/http://prodbeschr.pdf/http://einleitung.pdf/http://einleitung.pdf/http://einleitung.pdf/http://einleitung.pdf/


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4 Catalog DRS-GM 09/2009

Content

1 Preface..............................................................................................................................6

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

3.1 Gear unit and options unit designations............................................................ 18

3.2 Unit designations for AC motors and options....................................................... 21

3.3 Sample unit designation for a DR gearmotor .......................................................25

3.4 Gearmotor variants...............................................................................................26

4 Project Planning for Drives........................................................................................... 35

4.1 Additional documentation ..................................................................................... 35

4.2 Drive selection data..............................................................................................364.3 Project planning procedure ..................................................................................37

5 Project Planning for Gear Units ...................................................................................39

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..................................................................................556.3 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 Spiroplangearmotors 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 TorqLOCmounting system for gear units with hollow shaft .............................1017.6 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.................................................................1288.2 Selection tables for gearmotors..........................................................................129

8.3 Information regarding the dimension sheets ......................................................131


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Content

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3

4

5

6

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11

12

13

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15

9 Helical Gearmotors...................................................................................................... 135

9.1 Design variants................................................................................................... 135

9.2 Geometrically possible combinations.................................................................136

9.3 Selection tables..................................................................................................163

9.4 Selection tables for particularly low output speeds ............................................222

9.5 Dimension sheets...............................................................................................231

10 Parallel-Shaft helical gearmotors...............................................................................281

10.1 Design variants...................................................................................................281

10.2 Geometrically possible combinations .................................................................283



10.5 F..DRS [mm].......................................................................................................347

11 Helical-Bevel Gearmotors...........................................................................................403

11.1 Design variants...................................................................................................403





12 Helical-Worm Gearmotors ..........................................................................................525

12.1 Design variants...................................................................................................525





12.6 Technical data S, SF, SA, SAF 37.....................................................................598




12.10 Technical data S, SF, SA, SAF 77 .....................................................................614



13 SpiroplanGearmotors...............................................................................................627

13.1 Design variants...................................................................................................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 ............................ 66814.6 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


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1 The SEW-EURODRIVE group of companiesPreface

Price Catalog

1 Preface1.1 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 beverageas well as metal-processing industries. The decision to use drive technology made bySEW-EURODRIVE stands for reliability regarding both, functionality and investment.

We are represented in the most important branches of industry all over the world: with12 manufacturing plants, 67 assembly plants in 46 countries and our comprehensiverange 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. Gearunits and gearmotors offering a unique and finely tuned performance range and the besteconomic prerequisites to face your drive challenges.

The gearmotors are powered by MOVITRAC frequency inverters, MOVIDRIVE in-verters and MOVIAXISmulti-axis servo inverters, a combination that blends perfectlywith the existing SEW-EURODRIVE program. As in the case for mechanical systems,the development, production and assembly is also carried out completely bySEW-EURODRIVE. In combination with our drive electronics, these drives will providethe 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 fromits 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 toensure cost-effective solutions, independent of the philosophy behind or the size of thesystem. The latest developments from SEW-EURODRIVE: MOVITRANSsystem com-ponents for contactless energy transfer, MOVIPRO, the decentralized drive controland 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. Themodular concept will once again provide optimum adaptation of industrial gear units tomeet a wide range of different applications.

Your ideal partner Its global presence, extensive product range and broad spectrum of services makeSEW-EURODRIVE the ideal partner for the machinery and plant construction industrywhen it comes to providing drive systems for demanding applications in all branches ofindustries and applications.


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1Products and systems from SEW-EURODRIVEPreface

11.2 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 inverters2. 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 tablesto 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/helicalgearmotors

Parallel-shaft helical gearunits/parallel-shaft helicalgearmotors

Helical-bevel gear units/heli-cal-bevel gearmotors

Helical-worm gear units/heli-cal-worm gearmotors

Spiroplanright-angle gear-motors

Drives for electrified monorailsystems

Geared torque motors Pole-changing gearmotors Variable speed gear

units/variable speed gearmo-tors

Aseptic gearmotors Gear units/gearmotors to

ATEX standard Variable speed gear

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

MOVITRACfrequencyinverters

MOVIDRIVEinverters Control, technology and com-

munication options for invert-ers

2. Servo drive systems

Servo gear units / servo gear-motors

Servomotors Servo drive inverters/servoinverters

Low backlash planetary servo

gear units / planetary gear-motors Low backlash helical-bevel

servo gear units / helical-bevel gearmotors

Explosion-proof servo gearunits / servo gearmotors

Asynchronous servomotors /

servo brakemotors Synchronous servomotors /servo brakemotors

Explosion-proof servomotors/ servo brakemotors

Synchronous linear motors

MOVIDRIVEservo inverters

MOVIAXISmulti-axis servoinverters Control, technology and com-

munication options for servodrive inverters and servoinverters


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1 Products and systems from SEW-EURODRIVEPreface

In addition to products and systems, SEW-EURODRIVE offers a comprehensive rangeof services. These include:

Technical consulting

Application software

Seminars and training

Extensive technical documentation

International customer service

Visit our homepage at

www.sew-eurodrive.comThe website provides comprehensive information and services.

3. Decentralized drive systems

Decentralized drives Communication and installa-

tion

Contactless energy transfer

MOVIMOTgearmotors withintegrated frequency inverter

MOVIMOTmotors/brakemo-tors with integrated frequencyinverter

MOVI-SWITCHgearmotorswith integrated switching andprotection function

MOVI-SWITCHmotors/brakemotors with inte-grated switching and protec-tion function

Explosion-proof MOVIMOTand MOVI-SWITCHgear-motors

Fieldbus interfaces Field distributors for decen-

tralized installation MOVIFITproduct range

MOVIFIT-MC to controlMOVIMOTdrives

MOVIFIT-SC with inte-grated electronic motorswitch

MOVIFIT-FC with inte-grated frequency inverter

MOVITRANSsystem Stationary components

for energy supply Mobile components for

energy consumption Line cables and installa-

tion material

4. Industrial gear units

Helical gear units Bevel-helical gear units Planetary gear units

Products and systems covering several product groups

Operator terminals MOVI-PLCdrive-based control system


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1Additional documentationPreface

11.3 Additional documentation

Contents of this

publication

This DRS Gearmotors price catalog / catalog includes the detailed technical data of thefollowing SEW-EURODRIVE product groups:

DRS helical gearmotors DRS parallel-shaft helical gearmotors

DRS helical-bevel gearmotors

DRS helical-worm gearmotors

DRS Spiroplangearmotors

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 ourhome page:

www.sew-eurodrive.com


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2 General notes on the product descriptionProduct Description

2 Product Description2.1 General notes on the product description

Ambient tempera-ture Gear units and gearmotors from SEW-EURODRIVE can be operated in a wide ambienttemperature range. The following standard temperature ranges are permitted for fillingthe 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 accountand 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 ofmotors 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 altitudesof more than 100 m asl must be taken into account for project planning of gear units andgearmotors.

Power and torque The power and torque ratings listed in the catalogs refer to mounting position M1 andsimilar 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 subjectto selection. However, the output torque and the desired output speed are essential forthe 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 wellwithin the maximum permitted noise levels set forth in the VDI guideline 2159 for gearunits 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

Spiroplangear units CLP(SEW-PG) VG460 -10 C ... +40 C


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2General notes on the product descriptionProduct Description

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 paintsare available on request.

Exception:Spiroplan

W..10 DT56 gearmotors have an aluminum housing and aresupplied unpainted as standard.

Surface and cor-

rosion protection

If required, all gear units, motors and gearmotors from SEW-EURODRIVE can also besupplied 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 unitsand gearmotors. The weights vary according to gear unit type and gear unit size. Thelubricant fill depends on the mounting position which means no universally applicableinformation can be given. Please refer to "Lubricants" in the "Design and OperatingNotes" 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 waythat both axially and radially there is enough space left for unimpeded air admission, formaintenance work on the brake and, if required, for the MOVIMOT inverter. Pleasealso 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 inputend as a second gear unit.

It may be necessary to limit the motor power to match the maximum permitted outputtorque of the gear unit.

Reduced back-

lash gear units

Helical, parallel-shaft helical and helical-bevel gear units with reduced backlash areavailable as of gear unit size 37. The circumferential backlash of these gear units is con-siderably less than that of the standard versions so that positioning tasks can be solvedwith great precision. The circumferential backlash is specified in angular minutes [ ] inthe technical data. The circumferential backlash for the output shaft is specified withoutload (max. 1% of the rated output torque); the gear unit input end is blocked. For furtherinformation, refer to section "Reduced backlash gear units" on page 94.

NOCO

fluid forprotection

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 downjobs.

NOCOfluid is a food grade substance according to USDA-H1. You can tell thatNOCOFluid 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 andallow for high overhung and axial loads and bending moments. The other data are thesame as for standard helical gear units and standard helical gearmotors. You can findspecial project planning notes for RM gearmotors in the "Project Planning for GearUnits/RM gear units" section.


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2 General notes on the product descriptionProduct Description

Spiroplanright-

angle gearmotors

Spiroplanright-angle gearmotors are robust, single- and two-stage right-angle gear-motors with Spiroplangearing. The difference to the helical-worm gear units is the ma-terial combination of the steel-on-steel gearing, the special tooth meshing relationshipsand 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 andlightweight drive solutions.

After the running-in period, some sizes of Spiroplanright-angle gearmotors are belowthe following sound pressure level in 4-pole motor operation on a 50 Hz supply system:

SpiroplanW..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 hoursof 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, exceptfor SpiroplanW..37 and W..47 in mounting position M4 makes any position possiblefor Spiroplanright-angle gearmotors without altering the quantity of oil. Identical holespacing in the foot and face, as well as the equal shaft height to both, provides you withdiverse mounting options.

Two different flange diameters are available. On request, Spiroplanright-angle gear-motors can be equipped with a torque arm.

Brakemotors On request, motors and gearmotors can be supplied with an integrated mechanicalbrake. The SEW-EURODRIVE brake is an electromagnetic disk brake with a DC coilthat 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 brakecan 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 adjustablesetscrew. The brake is controlled by a brake controller that is either installed in the motorwiring space or the control cabinet.

A characteristic feature of the brakes is their very short design. The brake bearing endshield 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 motorswith connection conditions according to CSA and NEMA standard.

On request, SEW-EURODRIVE supplies UL registered MOVIMOTdrives 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.


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2General notes on the product descriptionProduct Description

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 centrifugalcoupling 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


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2 Corrosion and surface protectionProduct Description

2.2 Corrosion and surface protection

General informa-

tion

SEW-EURODRIVE offers various optional protective measures for operation of motorsand 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 protectionand 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.


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2Corrosion and surface protectionProduct Description

2

OS surface pro-

tection

Instead of the standard surface protection, the motors and gear units are available withsurface 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 fillingprior to painting.

Special protec-

tive measures

Gearmotor output shafts can be treated with special optional protective measures foroperation subject to severe environmental pollution or in particularly demanding appli-cations.

NOCOFluid As standard, SEW-EURODRIVE supplies NOCOFluid corrosion protection and lubri-cant with every hollow shaft gear unit. Use NOCOFluid when installing hollow shaftgear units. Using this fluid helps prevent contact corrosion and makes it easier to as-semble the drive at a later date.

Furthermore, NOCOFluid is also suitable for protecting machined metal surfaces thatdo not have corrosion protection, including parts of shaft ends or flanges. You can orderlarger quantities of NOCOFluid from SEW-EURODRIVE.

NOCOFluid is a food grade substance according to USDA-H1. You can tell thatNOCOFluid is a food grade oil by the USDA-H1 identification label on its packaging.

Surfaceprotection

Layers NDFT1)ongray-castiron [m]

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

Standard 1 Dip primer1 One-pack top coat

About50-70

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 primer1 Two-packbase coat1 Two-packtop coat

About120-150

Low environmental impact Relative humidity max. 95 % Max. surface temperature 120 C Corrosivity category C22)


About170-210

Medium environmental impact Relative humidity up to 100 % Max. surface temperature 120 C Corrosivity category C32)


About220-270

High environmental impact Relative humidity up to 100 % Max. surface temperature 120 C Corrosivity category C42)

OS4 1 Dip primer2 Two-packepoxy base layer2 Two-packtop coat

About 320 Very high environmental impact Relative humidity up to 100 % Max. surface temperature120 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 inconjunction with FKM oil seal (Viton)

stainless steel output shaft surface protection with high-qual-ity material

particularly demanding applications interms of surface protection
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2 Extended storageProduct 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 ina temperature range of -25 C ... +50 C. The flange contact surfaces and shaft endsare also treated with an anti-corrosion agent. If not specified otherwise in your order, thegear unit will be supplied with OS1 surface protection. You can order OS2, OS3 or OS4instead 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 VCIcorrosion 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 unitfor the first time!

Climate zone Packaging1) Storage location2) Storage duration

Temperate (Europe,USA, Canada,China and Russia,excluding tropicalzones)

Packed in containers, withdesiccant and moisture indi-

cator sealed in the plasticwrap.

Under roof, protected against rain and snow, noshock loads.

Up to 3 years with regularchecks of the packaging and

moisture indicator (rel. humid-ity < 50 %).

Open

Roofed, enclosed at constant temperature andatmospheric humidity (5 C


17/700


2Condition monitoring: Oil aging and vibration sensorProduct Description

2

2.4 Condition monitoring: Oil aging and vibration sensor

DUO10A diagnostics unit (Oil aging sensor)

Gear unit oil diag-

nostics throughthermal analysis

The DUO10A diagnostic unit allows for diagnostic analysis as a means of preventive

maintenance. The DUO10A diagnostic unit determines the individual, remaining servicelife 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-friendlyhandling.

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 developmentof the damage can be directly read on the device, or can be visualized externally usingswitch outputs.


18/700


3 Gear unit and options unit designationsUnit Designations and Variants

3 Unit Designations and Variants3.1 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

5480FF.. 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 hollowshaft to DIN 5480

FA.. Hollow shaft

FH.. Hollow shaft with shrink disk

FT.. Hollow shaft with TorqLOChollow 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


19/700


3Gear unit and options unit designationsUnit Designations and Variants

3

Helical-bevel gear units

Helical-worm gear units

Designation

K.. Foot-mounted designKA..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 DIN5480

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 hollowshaft to DIN 5480

KA.. Hollow shaft

KH.. Hollow shaft with shrink disk

KT.. Hollow shaft with TorqLOChollow 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 diskST.. Hollow shaft with TorqLOChollow shaft mounting system

SAZ.. B14 flange-mounted design and hollow shaft

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


20/700


3 Gear unit and options unit designationsUnit Designations and Variants

Spiroplangear 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:

Condition monitoring

Designation

W.. Foot-mounted designWF.. 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 TorqLOChollow 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


21/700


3Unit designations for AC motors and optionsUnit 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 ofshaft height if required

/FE IEC flange-mounted motor with bore holes and IEC feet, withspecification of shaft height

/FY IEC flange-mounted motor with thread and IEC feet, withspecification of shaft height

/FK General flange-mounted motor (other than IEC) with feet, withspecification of shaft height if required

/FC C-face flange-mounted motor, dimensions in inch


22/700


3 Unit designations for AC motors and optionsUnit Designations and Variants

Mechanical attachments

Temperature sensors/detection

Encoder

Designation Option

BE.. Spring-loaded brake with size specificationHR 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

/MO MOVIMOToption(s)

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


23/700


3Unit designations for AC motors and optionsUnit Designations and Variants

3

Connection options

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-clampclosure (cage clamps on motor end)

/ACE. HAN 10ES plug connector on terminal box with single-clampclosure (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 withsingle-clamp closure (cage clamp on motor end), additionallywith mounting screws for optional carrier plate

/KCC Terminal strip with cage clamps

/KC1 C1 profile compliant connection of the DR80 overhead trolleydrive (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)


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3 Unit designations for AC motors and optionsUnit Designations and Variants

Condition monitoring

Explosion-proof motors

Other additional features

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


25/700


3Sample unit designation for a DR gearmotorUnit 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. Forinstance, 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 B5flange-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 size 107

1. Gear unit

Gear unit type K

65702AXXFigure 1: Sample unit designation for a DR gearmotor

K107 R77 DRS100M4/TF


26/700


3 Gearmotor variantsUnit Designations and Variants

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

RX..DR..Foot-mounted single stage helical gearmotor

RXF..DR..Single-stage B5 flange-mounted helical gearmotor

R..DR..Foot-mounted helical gearmotor

R..F DR..Foot and B5-flange 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


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3Gearmotor variantsUnit Designations and Variants

3

Parallel-shaft

helical gearmo-

tors

The following variants of parallel-shaft helical gearmotors can be supplied:

60383AXX

F..DR..Foot-mounted parallel-shaft helical gearmotor

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 shaftand shrink disk

FF..DR..B5 flange-mounted parallel-shaft helical gearmotor

FAF..DR..Parallel shaft helical gearmotor in B5 flange-mounted design withhollow shaft

FVF..DR..Parallel-shaft helical gearmotor in B5 flange-mounted design withhollow shaft and splining according to DIN 5480


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60396AXX

FHF..DR..Parallel-shaft helical gearmotor in B5 flange-mounted version withhollow shaft and shrink disk

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 TorqLOChol-low shaft mounting system

FAZ..DR..Parallel-shaft helical gearmotor in B14 flange-mounted design withhollow shaft

FVZ..DR..Parallel-shaft helical gearmotor in B14 flange-mounted design withhollow shaft and splining according to DIN 5480

FHZ..DR..Parallel-shaft helical gearmotor in B14 flange-mounted version withhollow shaft and shrink disk


29/700



3

Helical-bevel

gearmotors

The following types of helical-bevel gearmotors can be supplied:

60397AXX

K..DR..Foot-mounted helical-bevel gearmotor

KA..B DR..Foot-mounted helical-bevel gearmotor with hollow shaft

KV..B DR..Foot-mounted helical-bevel gearmotor unit with hollowshaft and splining according to DIN 5480

KH..B DR..Foot-mounted helical-bevel gearmotor with hollow shaftand shrink disk

KF..DR..Helical-bevel gearmotor in B5 flange-mounted design

KAF..DR..Helical-bevel gearmotor in B5 flange-mounted design withhollow shaft

KVF..DR..Helical-bevel gearmotor in B5 flange-mounted design withhollow shaft and splining according to DIN 5480


30/700



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 spliningaccording to DIN 5480

KH..DR..Helical-bevel gearmotor with hollow shaft and shrink disk

KT..DR..Helical-bevel gearmotor with hollow shaft and TorqLOChollow shaft mounting system

KAZ..DR..Helical-bevel gearmotor in B14 flange-mounted designwith hollow shaft

KVZ..DR..Helical-bevel gearmotor in B14 flange-mounted designwith hollow shaft and splining according to DIN 5480

KHZ..DR..Helical-bevel gearmotor in B14 flange-mounted version

with hollow shaft and shrink disk


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3

Helical-worm

gearmotors

The following types of helical-worm gearmotors are available:

60399AXX

S..DR..Foot-mounted helical-worm gearmotor

SF..DR..Helical-worm gearmotor in B5 flange-mounted design

SAF..DR..Helical-worm gearmotor in B5 flange-mounted designwith hollow shaft

SHF..DR..Helical-worm gearmotor in B5 flange-mounted designwith hollow shaft and shrink disk


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60400AXX

SA..DR..

Helical-worm gearmotor with hollow shaft

SH..DR..Helical-worm gearmotor with hollow shaft and shrink disk

ST..DR..Helical-worm gearmotor with hollow shaft and TorqLOChollow shaft mounting system

SAZ..DR..Helical-worm gearmotor in B14 flange-mounted designwith hollow shaft

SHZ..DR..Helical-worm gearmotor in B14 flange-mounted design

with hollow shaft and shrink disk


33/700



3

Spiroplangear-

motors

The following variants of Spiroplangearmotors size W..10 to W..47 are available:

60401AXX

W..DR..Foot-mounted Spiroplangearmotors

WF..DR..Spiroplangearmotor in flange-mounted design

WA..DR..Spiroplangearmotor with hollow shaft

WAF..DR..Spiroplangearmotor in flange-mounted design withhollow shaft


34/700



Additionally, the following variants of Spiroplangearmotors size W..37 and W..47 areavailable:

62643AXX

WA..B DR..Foot-mounted Spiroplangearmotor with hollow shaft

WH..B DR..Foot-mounted Spiroplangearmotor with hollow shaftand shrink disk

WHF.. DR..Spiroplangearmotor in flange-mounted design withhollow shaft and shrink disk

WH.. DR..Spiroplangearmotor with hollow shaft and shrink disk

WT.. DR..Spiroplangearmotor with hollow shaft and TorqLOC


35/700


4Additional documentationProject Planning for Drives

4

4 Project Planning for Drives4.1 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 thepublications in the "Drive Engineering Practical Implementation" series as well as themanuals and catalogs for electronically controlled drives. You will find additional links toa wide selection of our documentation in many languages for download on theSEW-EURODRIVE homepage (http://www.sew-eurodrive.com). The list below includesother documents that are of interest in terms of project planning. You can order thesepublications 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

"Decentralized Installation" system folder (MOVIMOT, MOVI-SWITCH, communi-cation and supply interfaces)

"MOVITRACB" system manual

"MOVIDRIVEMDX60/61B" system manual


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4 Drive selection dataProject 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, settingrange, 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 PRODRIVEproject planning software for assistance.

Selecting the

proper drive

The appropriate drive can be determined with the calculated power and speed and withother mechanical requirements taken into account.

Drive selection data Your entry

namin Minimum output speed [1/min]

namax Maximum output speed [1/min]

Paat namin Output power at minimum output speed [kW]

Paat namax Output power at maximum output speed [kW]

Maat namin Output torque at minimum output speed [Nm]

Maat namax Output torque at maximum output speed [Nm]

FR

Overhung loads acting on the output shaft. Forceapplication in center of shaft end is assumed. If, spec-ify the exact application point giving the applicationangle and direction of rotation of the shaft for recalcu-lation.

[N]

FAAxial load (tension and compression) on the outputshaft

[N]

JLast Mass moment of inertia to be driven [10-4kgm2]

R, F, K, S, WM1 - M6

Required gear unit type and mounting position(Sec. Mounting positions, churning losses)

-

IP.. Required degree of protection -

Umg 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]

UMot,UBremse

Operating voltage of motor and brake [V]

MB Required braking torque [Nm]

For inverter operation:Required control type and setting range


37/700


4Project planning procedureProject Planning for Drives

4

4.3 Project planning procedure

Example The following flow diagram illustrates the project planning procedure for a positioningdrive. The drive consists of a gearmotor that is powered by an inverter.

Necessary information regarding the machine to be driven Technical data and environmental conditions Positioning accuracy Speed setting range (rotational accuracy) Travel cycle calculation

Calculation of the relevant application data static, dynamic, and regenerative power Speeds Torques Travel diagram

Gear unit selection Definition of gear unit size, gear unit reduction ratio and gear unit type Check the positioning accuracy Check the gear unit utilization (Mo maxMo (t))

System selection depending on Positioning accuracy Setting range Control

Inverter operation Voltage-controlled inverter without and with speed control Voltage-controlled, vector-controlled inverter without and with speed control

Current-controlled, vector-controlled inverter

Motor selection Maximum torque For extremely low output speeds: Limit motor power according to Ma maxof the gear unit For dynamic drives: Effective torque at medium speed Maximum speed For dynamic drives: Torque curves Thermal load (setting range, cyclic duration factor) Selection of the correct encoder Motor equipment (brake, plug connector, TF temperature monitoring, etc.)

Brake selection

Determine the braking torque Determine the working capacity Determine the brake size Select the brake control


38/700


4 Project planning procedureProject Planning for Drives

Select the inverter Motor/inverter assignment Continuous power and peak power in voltage-controlled inverters

Continuous current and peak current in current-controlled inverters

Select the braking resistor Based on the calculated regenerative power and cdf

Options EMC measures Operation/communication Additional functions

Make sure that all requirements have been met.


39/700


5Efficiency of SEW gear unitsProject Planning for Gear Units

5

5 Project Planning for Gear Units5.1 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 efficiencyat operating speed. This factor is especially pronounced in the case of helical-worm andSpiroplanright-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 Spiroplangear units produces a high proportion of

sliding friction. As a result, these gear units have higher gearing losses than R, F or Kgear units and thus be less efficient.

The efficiency depends on the following factors:

Gear ratio of the helical-worm or Spiroplanstage

Input speed

Gear unit temperature

Helical-worm gear units from SEW-EURODRIVE are helical gear/worm combinationsthat are significantly more efficient than plain worm gear units. The efficiency may reach

< 0.5 if the helical-worm or Spiroplanstage has a very high ratio step.

Self-locking Retrodriving torques on helical-worm or Spiroplangear units produce an efficiency of= 2 - 1//, which is significantly less favorable than the forward efficiency . The heli-cal-worm or Spiroplangear unit is self-locking if the forward efficiency 0.5. SomeSpiroplangear units are also dynamically self-locking. Contact SEW-EURODRIVE ifyou wish to make technical use of the braking effect of self-locking characteristics.

Do not use the self-locking effect of helical-worm and Spiroplangear units as sole safe-ty function for hoists.


40/700


5 Efficiency of SEW gear unitsProject Planning for Gear Units

Run-in phase The tooth flanks of new helical-worm and Spiroplangear units are not yet completelysmooth. That fact makes for a greater friction angle and less efficiency than during lateroperation. This effect intensifies with increasing gear unit ratio. Subtract the followingvalues from the listed efficiency during the run-in phase:

The run-in phase usually lasts 48 hours. Helical-worm and Spiroplan gear unitsachieve 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 orderinformation"), the first gearing stage is completely immersed in the lubricant. When thecircumferential velocity of the input stage is high, considerable churning losses occur inlarger gear units that must be taken into account. Contact SEW-EURODRIVE if you wishto 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

i range reduction

1-start approx. 50 ... 280 approx. 12%





SpiroplanW10 to W30 SpiroplanW37 and W47

i range reduction i range reductionapprox. 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%


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5Oil expansion tankProject Planning for Gear Units

5

5.2 Oil expansion tank

The oil expansion tank allows the lubricant/air space of the gear unit to expand. Thismeans 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 intendedfor gear units without motor, it can be mounted to nearby machine parts.

For further information, please contact your SEW-EURODRIVE sales representative.

62658AXXFigure 2: Oil expansion tank


42/700


5 Multi-stage gearmotorsProject Planning for Gear Units

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 zuland the load diagram of the motor todetermine the associated value for the motor current.

Take suitable measures to prevent the continuous current consumption of the motorfrom exceeding the previously determined value for the motor torque MN zul. A suitablemeasure 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 briefoverload, 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) accordingto the maximum permitted motor torque MN zul. The maximum permitted braking torqueis 200 % MN zul.

MB max200 % 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 notpermitted. 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

M=MN zul

ges

a max

iges

Consult SEW-EURODRIVE if blockages of the multi-stage gear unit or multi-stage gear-motor cannot be avoided due to the application.


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5Service factorProject Planning for Gear Units

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 levelof 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 takeninto account depending on the mass acceleration factor. You can read off the servicefactor applicable to your application in Figure3. The service factor determined from thisdiagram must be smaller than or equal to the service factor according to the selectiontables.

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

00656BXXFigure 3: Service factor fB

* Daily operating time in hours/day

** Starting frequency Z: The cycles include all starting and braking procedures as well as changeoversfrom low to high speed and vice versa.

M f Ma b a max

fB

0 200 400 600 800 1200 14001000

24* 16* 8*

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.2

1.3

1.4

1.5

1.6

1.7

1.8

Z [1/h] **

(III)

(II)

(I)


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5 Service factorProject Planning for Gear Units

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 scalingdown 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 motorand, if installed, the brake and the flywheel fan (Z fan).

Service factors fB1.8 may occur with large mass acceleration factors (> 10), high levelsof 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 maxand us-ing this value to derive the service factor fB= Mo max/ Mois not defined in a standardand varies greatly from manufacturer to manufacturer. Even at a SEW service factor offB= 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 youare in doubt, contact SEW-EURODRIVE for more detailed information on your specificdrive.

Example Mass acceleration factor 2.5 (load classification II), 14 hours/day operating time (readoff at 16 h/d) and 300 cycles/hour Figure3result in a service factor fB = 1.51. Accordingto the selection tables, the selected gearmotor must have an SEW fBvalue of 1.51 orgreater.

JXJnnM

= 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

2


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5Service factorProject Planning for Gear Units

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 fBderived from Figure3. These are:

fB1= Service factor from ambient temperature

fB2= Service factor from cyclic duration factor

The additional service factors fB1and fB2can be determined by referring to the diagramsin Figure4. For fB1, the load classification is taken into account in the same way as forfB.

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 = 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 anSEW fBservice factor of 1.98 or greater.

00657BXXFigure 4: Additional service factors fB1and fB2

Contact SEW-EURODRIVE in case of temperatures below -20 C (fB1).

fBges= fBfB1fB2

fB2

-20 0-10 20 40 6020 8030 100 %ED40 50C

fB1

1.0 0.6

1.2 0.8

1.4 1.0

1.6

1.8

(III)

(II)

(I)

cdf (%) =Time under load in min/h

60 100


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5 Overhung and axial loadsProject 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 ratedbearing service life L10hof the anti-friction bearings (according to ISO 281).

For special operating conditions, the permitted overhung loads can be determined withregard to the modified service life Lnaon request.

The permitted overhung loads FRafor the output shafts of foot-mounted gear units witha 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

Chain sprockets 1.40 < 13 teeth

Chain sprockets 1.25 < 20 teeth

Narrow V-belt pulleys 1.75 Influence of the pre-tensioningforce

Flat-belt pulleys 2.50 Influence of the pre-tensioningforce

Toothed belt pulleys 1.50 Influence of the pre-tensioningforce

FR = Overhung load in N

Md = Torque in Nm

d0 = Mean diameter of the installed transmission element in mm

fZ = Transmission element factor

FR

=M 2000

d

d

0

f

Z

The values refer to force applied to the center of the shaft end (in right-angle gearunits as viewed onto drive end). The values for the force application angle anddirection of rotation are based on the most unfavorable conditions.

Only 50% of the FRavalue specified in the selection tables is permitted in mountingposition 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 FRaspecified in the selection tables in the case ofgear 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 flangemounting are permitted.


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5Overhung and axial loadsProject Planning for Gear Units

5

Higher permitted

overhung loads

Exactly considering the force application angle and the direction of rotation makes itpossible to achieve a higher overhung load. Higher output shaft loads are permitted ifheavy 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) amountingto 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

59824AXXFigure 5: Definition of the force application

FX = Permitted overhung load at point x [N]

FA = Permitted axial load [N]

0 0

X

FX

FA

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.


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5 Overhung and axial loadsProject 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 usingthe 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 shaftstrength) is the permitted value for the overhung load at point x. Note that the calcula-tions apply to Ma max.

FxLaccording to bear-ing service life

FxWfrom the

Shaft strength:

F = FxL Ramax a

b + x[N]

F =xWc

f + x [N]

FRa = Permitted overhung load (x = l/2) for foot-mounted gear units according to theselection 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]

02356BXXFigure 6: Overhung load Fxfor off-center force application

x

x

FRa

FRa

FX FxL

d d

l

l/2


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5Overhung and axial loadsProject Planning for Gear Units

5

Gear unit con-

stants for overhung

load conversion

Values for types not listed are available on request.

Gear unit type a

[mm]b

[mm]c

[Nmm]f

[mm]d

[mm]I

[mm]

RX57RX67RX77RX87RX97RX107

43.552.560.573.586.5

102.5

23.527.530.533.536.542.5

1.51 105

2.42 105

1.95 105

7.69 105

1.43 106

2.47 106

34.239.70

48.953.962.3

202530405060

40506080100120

R07R17R27R37R47R57R67R77R87R97

R107R137R147R167

72.088.5

106.5118137

147.5168.5173.7216.7255.5

285.5343.5402450

52.068.581.593

107112.5133.5133.7166.7195.5

215.5258.5297345

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

1117

11.80

15180000

00330

20202525303535405060

7090110120

4040505060707080100120

140170210210

F27F37F47F57F67F77F87F97F107F127F157

109.5123.5153.5170.7181.3215.8263350

373.5442.5512

84.598.5

123.5135.7141.3165.8203280

288.5337.5407

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

00000000000

252530354050607090110120

5050607080100120140170210210

K37K47K57K67K77K87K97K107K127K157K167K187

123.5153.5169.7181.3215.8252319

373.5443.5509

621.5720.5

98.5123.5134.7141.3165.8192249

288.5338.5404

496.5560.5

1.30 105

1.40 1052.70 105

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

000000000000

2530354050607090110120160190

50607080100120140170210210250320

W10W20W30W37W47

84.898.5

109.5121.1145.5

64.878.589.5

101.1115.5

3.6 104

4.4 104

6.0 104

6.95 104

4.26 105

0000

35.6

1620202030

4040404060

S37S47S57S67S77S87S97

118.5130150184224

281.5326.3

98.5105120149179

221.5256.3

6.

sew eurodrive geared motor-drs

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