 lpha Premium Linea
Product catalog
UniqueIndividual
Highly efficient© 2024 by WITTENSTEIN alpha GmbHAll technical specifications were correct at the timeof going to print. We are continually developing our
products and therefore reserve the right to makemodifications. This documentation is subject tooccasional errors. Please appreciate that legal
claims cannot be asserted as a result of incorrect
specifications, illustrations or descriptions. The text,
photos, technical drawings and any other illustrations
printed in this publication are protected property of
WITTENSTEIN alpha GmbH.
Further use of this material in printed or electronic
format requires express approval from WITTENSTEIN
alpha GmbH.
Any form of duplication, translation, editing, transfer
to microfilm or storage on electronic systems is
not permitted without express permission fromWITTENSTEIN alpha GmbH.

4

Contents
Foreword by company management

6

WITTENSTEIN alpha8More than 40 years of innovation

8

Engineering tools

12

alpha Premium Line16

Product range and applications

16

Planetary gearboxes

22

XP⁺

24

RP+

44

Hypoid gearboxes

60

XPK+ / RPK+

62

Bevel gearboxes72

XPC + / RPC +Product portfolio & company
Gearbox overview

74

84
84

alpha Linear Systems

94

Digital product feature - cynapse ®

96

premo ® servo actuators

98

Galaxie ® drive systems

100

Accessories

102

Services

106

WITTENSTEIN Group112

Information

114

Design strategy

114

Glossary

116

Order codes

124

5

Dear Business Associates,
Even though we are extremely passionate about technology and innovation,
the success of our customers is our top priority. We have designed our
products and services to help you achieve a competitive advantage –through consistently high quality, permanent availability and the best service
worldwide.
The product portfolio is divided into four product segments, which havealready been successfully established on the market. The alpha PremiumLine offers unique, individual solutions. Our alpha Advanced Line provides
maximum power density, compact precision and outstanding positioning
accuracy. Gearboxes of the alpha Basic and alpha Value Line are especiallysuitable for applications requiring cost-oriented, particularly flexible yet
efficient solutions.
You are sure to find the right solution quickly and easily from our productrange. We offer holistic mechanical and mechatronic drive solutions for all
types of axis. We also provide complete solutions from a single source onrequest. Our range of products and solutions will continue to grow in the
future because we never stop developing new ideas to make your work easier.
Take our word for it!
Thomas Patzak and Norbert Pastoors
Managing Directors WITTENSTEIN alpha GmbH

6

7

YOUR WORLDIS OUR DRIVE.
FOR MORE THAN 40 YEARS.

SP

1983

1994
TP

8

Linear systems

LP

1996

1999

2002

cymex ®
sizing software

2004

TPM+

2006

XP+ / TP+ / SP+ / LP+

2007

High Performance
Linear System

alpha Value Line

2011

2015

TPK+ / SPK+ /HG+ / SK+ / TK+

2013

HDV
Hygienic Design

FUTURE PROOF

PERFORMANCE
Performance where it counts:
High torque, outstanding precision andhigh power density – essential for our
products and systems.

We live processes:
Only those who know the exact details ofcustomer processes and requirements arein a position to develop solutions that offer
added value in the short and long term.

EFFICIENCYSCALABILITY
You never makecompromises:
Whatever the performancearea – we offer solutions thatgrow with your requirements.

a l phaIt is good to know today what will beneeded tomorrow. Applying it in practiceis even better. We develop technologythat shapes the future – ENGINEERING
FUTURE SOLUTIONS.

AVAILABILITY

CONNECTIVITY

You need reliability:
We have the widest range of productson the market and can implement
your application „just in time“.

DP+ for Delta
robotsINIRA®

2016
cymex ® 5alpha Linear
Systems

2017
SIZINGASSISTANT

V-Drive Family

We like it „lean“:We offer products and systems
that are energy-efficient andrequire minimal installation
space in machines.

We think in terms of interfaces:
All of our systems can be integrated ina wide range of peripherals.

cynapse ®

alpha Basic Line2018
premo ®

2019
CAD POINT

cymex ® select

2022
WITTENSTEIN
Service Portal

NTP

2023
axenia value

CAD POINTY O U R S M A R T C ATA L O G

9WITTENSTEIN alpha on all axes
Complete drive solutions under one roof
We offer the best solutions for almost every application. In addition
to gearboxes, our product portfolio includes a wide range of drive
solutions with linear systems and servo actuators. Adapted accessories
such as couplings and shrink disks round off the product portfolio.

The diagrams below provide a quick overview of our product portfolio
for a wide variety of requirements and applications:

Planetary gearboxes
Gearboxes
alpha Premium
XP

+

RP+

alpha Advanced

HDP+
TP+

SP+

DP+

Axes with ve
precision, dy
and power drequirements

NTP

alpha Value

NPR
HDV

Value

NP

NPS
NPL

alpha BasicCPS

Axes with mprecision, dy
and power drequirements

CP

Performance
Hypoid,andworm Gearboxes
gearboxes
Hypoid-,bevel
Bevel& Worm
XPC+ / XPK+

RPK+ / RPC+

alpha Premium

TPK+ / TPC+
SPC+ / SPK+
SK+ / HG+ / TK+
SC

+

Value

NPRK
NPTK
NPSK
NPLK
NPK

VH / VS / VT+++alpha Value
NVH / NVS

alpha Basic
CPK / CPSK

Performance10

alpha Advanced

CVH / CVS

Axes with ve
precision, dy
and power drequirements

Axes with mprecision, dy
and power drequirements

Know-how in every sector
Our solutions range from high-precision axes inmanufacturing systems to packaging machines thatmust operate with maximum productivity in the smallest
installation space. Overview:· Machine tools and production technology· Food and packaging machines· Wood working machinery· Printing and paper machines· Robotics and automation

Portal milling machine

Linear systems
Systems
Premium Linear System – RP+Premium Linear System – XP

alpha Premium

Axes with very hprecision, dynamand power densi
requirements+

Advanced Linear System – TP+

alpha Advanced

Advanced Linear System – SP+alpha Value

Value

Value Linear System – NPR

Axes with mid-ra
precision, dynamand power densi
requirements

alpha Basic

Performance
Servo actuators
alpha Premium

Axes with very hprecision, dynamand power densi
requirements

premo® XP Linepremo® TP Linealpha Advanced

premo® SP Line
TPM+ POWER
TPM DYNAMIC

TPM+ HIGH TORQUE

+

Value

axenia valuealpha Value

Axes with mid-ra
precision, dynamand power densi
requirements

alpha Basic

Performance
11

WITTENSTEIN alpha Tools –many ways to reach your goals
Our software portfolio helps you choose the optimal drive
You can conveniently download dimension sheets and CAD data, select the best
gearbox quickly and easily design complex kinematic sequences in detail – our software solutions offer various methods of selecting the best, most reliable drive on allaxes.

CAD POINT­– Your Smart Catalog· Performance data, dimension sheets and CAD
data for all types of gearboxes· Comprehensive documentation of the selection· Available online without logging in
www.wittenstein-cad-point.com

cymex® select­– Best solution within seconds· Efficient and customizableproduct selection in seconds· Top three productrecommendations for your requirements· Available online without login· Possibility of requesting
quotation quickly and directly
cymex-select.wittenstein-group.com

cymex® 5– Calculate on the Best· Detailed calculation of complete drive trains· Precise simulation of motion and load variables· Downloadable software for complex designs
www.wittenstein-cymex.com

12

13

cymex® 5 is the current standard
With cymex ® 5, the dimensioning and design of complete drive trains(application + transformation + gearbox + motor) is now fast, simple
and reliable. Calculation is made much easier through predefined
standard applications. Consideration for all major influencing factors
guarantees an optimal design and increases the efficiency of yourmachine.
c ymex 5 can define any number of axes
 simultaneously®

In contrast to other design tools, cymex ® 5 can define
any number of axes at the same time. The version
calculation is up to 60 % quicker as a result.

 cymex 5 has an extremely extensive database®

More than 14,000 motors from the 50 most prominent motor
manufacturers are stored in the design tool. Continuously updated,
always state-of-the-art. Moreover, more than 8,000 gearbox
versions from WITTENSTEIN alpha and over 200 combinationsof linear systems with all relevant technical specifications can befound here.

Free downloadv(t)The basic version of cymex ® 5 design
software is available as a free download.

FPreload
MasterFPreloadSlavecymex 5 incorporates the completely new Master / Slave function*®

www.wittenstein-cymex.com

The Master / Slave function enables the electrically clamped configurationof two drives. The mutual tensioning of master and slave eliminates the
backlash in the drive train and provides for a high degree of rigidity in themachine.

*Premium function, on request.

14

cymex 5®

 cymex 5 has a unique optimization calculator*®

During the design process, cymex ® 5 provides optimization suggestions forthe selected gearbox, which increase reliability and efficiency while ensuring your gearbox has the perfect dimensions e.g. through downsizing.
This saves on costs and reduces the installation space in the machine.

 cymex 5 offers comprehensive documentation®

Following the geometry comparison, cymex ® 5 creates
calculation documentation and generates data sheets for
gearbox and motor on request. Furthermore, the 2D and
3D CAD data of selected components can be retrieved.

11 languages

 ymex 5 enables the precise simulation of motionc andload variables®

The optimized software offers many options for the individual design of the drive train. These have been integrated tosupplement the existing applications already in cymex ® 3: thecrank, conveyor, center winder and feed roll.

15alpha Premium Line – unique, individual solutions that offer
unparalleled power density
The requirements for highly complex applications used in machine tools or laser technology, for example, arebecoming increasingly demanding and standard products are often unable to meet them. The alpha Premium Lineis a completely new product program developed to meet the most demanding requirements. In addition to the
products, we primarily focus on offering comprehensive consultancy services to ensure that your requirements
are taken into full consideration and maximum machine utilization is achieved. We aim to provide unique "Best inClass" solutions that significantly exceed current standards and help you design your plants more efficiently.

Maximum power density
We increased the performance of our gearboxes by up to 200 %compared to other commercially available standard gearboxes.
Our Premium products therefore make a direct contribution toenhancing the performance of your plant.

Maximum positioning accuracy
On request, the Premium planetary gearboxes are available
with torsional backlash of less than one arc minute. In
combination with maximum torsional rigidity, this backlash
guarantees outstanding positioning accuracy.

Easy installation
Specially designed output configurations allow for quick andeasy installation.

Top engineering and expert consultation
We use our extensive engineering expertise to develop uniquesolutions and produce the perfect design for your drive train. Our
highly qualified employees provide support and advice from theinitial idea and throughout the entire life cycle of your application.

alpha Premium solutions.
Tailored precisely to meet your needs.
More performance in less space· if you require an even more compact drive· if you wish to enhance the performance of your machine· if you require high-performance linear systems

16alpha Premium Line"We develop pioneeringsolutions for demanding
applications in close dialog
with our customers."
Sven Sanitz, Sales

17

alpha P

Reaching new heights: the alpha Premium Line
Planetary gearboxes

The unique capabilities of planetary gearboxes from the alpha Premium Line are setting
new standards on the market. These compact gearboxes are characterized by a power
density far above the current industry standard. Your application can benefit directlyfrom this increase in performance.

XP+

RP+

Hypoid gearboxes
Maximum power density and high modularity are just two of the special characteristics
of our hypoid gearboxes. Furthermore, gearboxes from the alpha Premium Line arecharacterized by an extremely robust overall design that guarantees a high degree of
reliability and a long service life.

XPK+

18

RPK+

Premium Line
Bevel gearboxes

alpha Premium LineThe low backlash bevel drives from our alpha Premium Line offer outstanding
performance at low ratios during both cyclic and continuous operation. The perfectsolution for dynamic applications with demanding requirements with regard to
precision, torque and output speed. Increases in the performance of your plant caneasily be achieved with a 97 % degree of efficiency.

XPC +

RPC +

19

20

alpha Premium Line in action
RPK+ – when high performance is required in a small
installation spacealpha Premium Line

Whether laser cutting machines, turning and milling machines, or
pipe bending machines – the use of powerful gearboxes with ahigh degree of positioning accuracy is essential in rack and pinion
applications. The compact RPK+ combines these characteristics toachieve high feed forces and accurate positioning in the application.

Premium Line products can also be used in machines that generaterotary movements under extreme loads such as flatbed lasers or
portal milling machines.

Flatbed laser

Working position
Working position

Portal milling machine

Working position

21

22

Planetary gearboxes

XP+ and RP+ planetary gearboxes
Unique in performance23XP+ – the best performing solution for cyclic operation

The XP+ with specially designed output and extremelycompact design offers new dimensions in the powertransmission in cyclic operation that far exceed industry
standards. The optimized interfaces on the output cangenerate much higher torques, tilting moments and rigiditythat directly benefit your application.

The XP+ impresses with maximum power density,· if you require an even more compact drive· if you wish to enhance the performance of yourmachine in cyclic operation· if you require high-performance linear systems

Produkthighlights
Max. backlash [arcmin] ≤ 1 - 3
High power density
Very smooth running
XP+

+ +
XPXP
with
mitsplined
Zahnwelle
shaft

24

Multiple output configurations
for greater flexibility
Smooth shaft, shaft with key, splined
shaft (DIN 5480), blind hollow shaft,
System output+ Ritzel und Langlöchern
XP+XP
mit
with pinion and slots

XP+ compared to industry standard

Tilting moment[Nm]

Torsional backlash[arcmin]

100 %Planetary gearboxes

Service life[h]Torsional rigidity[Nm/arcmin]Max. acceleration torque
[Nm]

200 %
300 %

Smooth running

Nominal speed
[rpm]

XP+

+
XP+ mitXP
Ritzel,withLanglöchern
pinion, slotsund
and Zahnstangerack

industry standard

premo
premo®®XP
XPLineLinewith
mit Ritzel
pinion25

XP+ 010 MF 1- / 2-stage

Ratio

i

Max. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage3 / 4 / 5 / 7 / 8 / 10

16 / 20 / 25 / 28 / 32 / 35 /40 / 50 / 64 / 70 / 100Nm

56 – 128

50 – 119in.lb

496 – 1133

446 – 1051

Nm

42 – 10842 – 99in.lb

372 – 956

372 – 876

Nm

21 – 27

34 – 53

in.lb

190 – 239

297 – 467Nm

110 – 165

110 – 165

in.lb

974 – 1458

974 – 1458

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

3300 – 4000

4400 – 5500

Max. input speed

n1Max

rpm

7500

8500

Max. torsional backlashjtarcminStandard ≤ 4 / Reduced ≤ 2Standard ≤ 5 / Reduced ≤ 3

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

5 – 6.5

5 – 6.5

in.lb/arcmin

44 – 58

44 – 58

Nm

339

339

in.lb

3000

3000

dB(A)

≤ 55

≤ 53

Lubricated for life

Lubricated for life

11 – 19

11 – 14

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stage

b)

26

mm

XP+ 020 MF 1- / 2-stageiMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage3 / 4 / 5 / 7 / 8 / 10

16 / 20 / 25 / 28 / 32 / 35 /40 / 50 / 64 / 70 / 100Nm

168 – 330

139 – 348

in.lb

1487 – 2921

1227 – 3080

Nm

126 - 275

126 - 303

in.lb

1115 - 2434

1115 - 2682

Nm

63 - 81101 - 145

in.lb

558 - 720

101 - 145Nm

325 – 390

325 – 418

in.lb

2877 – 3452

2877 – 3696

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2900 – 3100

3500 – 4500

Max. input speed

n1Max

rpm

7500

8500

Max. torsional backlashjtarcminStandard ≤ 3 / Reduced ≤ 1Standard ≤ 4 / Reduced ≤ 2

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

14 – 17

15 – 20

in.lb/arcmin

124 – 150

133 – 173

Nm

675

675

in.lb

5974

5974

dB(A)

≤ 56

≤ 53

Lubricated for life

Lubricated for life

14 – 24

11 – 19

Lubrication
Clamping hub diametermm

Planetary gearboxes

Ratioa lphaApplication-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stageb)

27XP+ 030 MF 1- / 2-stage

Ratio

i

Max. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage3 / 4 / 5 / 7 / 8 / 10

16 / 20 / 25 / 28 / 32 / 35 /40 / 50 / 64 / 70 / 100Nm

388 – 600

363 – 660

in.lb

3434 – 5310

3213 – 5842

Nm

320 – 550

303 – 550

in.lb

2832 – 4868

2682 – 4868

Nm

131 – 174242 – 319

in.lb

1157 – 1538

2142 – 2826

Nm

650 – 900

750 – 1125

in.lb

5753 – 7966

6638 – 9957

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2500 – 2800

3100 – 4200

Max. input speed

n1Max

rpm

5500

6500

Max. torsional backlashjtarcminStandard ≤ 3 / Reduced ≤ 1Standard ≤ 4 / Reduced ≤ 2

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

32 – 40

35 – 45

in.lb/arcmin

283 – 354

310 – 398

Nm

1296

1296

in.lb

11471

11471

dB(A)

≤ 59

≤ 56

Lubricated for life

Lubricated for life

19 – 38

14 – 28

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stage

b)

28

mm

XP+ 040 MF 1- / 2-stageiMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage3 / 4 / 5 / 7 / 8 / 10

16 / 20 / 25 / 28 / 32 / 35 /40 / 50 / 64 / 70 / 100

Nm

792 – 1312

792 – 1188

in.lb

7010 – 11612

7010 – 10515

Nm

710 – 1080

660 – 990

in.lb

6284 – 9559

5842 – 8762

Nm

202 – 335

461 – 607

in.lb

1786 – 2962

4078 – 5370

Nm

1375 – 2310

1375 – 2310

in.lb

12170 – 20449

12170 – 20449

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2100 – 2600

2900 – 3900

Max. input speed

n1Max

rpm

5000

6000

Max. torsional backlashjtarcminStandard ≤ 3 / Reduced ≤ 1Standard ≤ 4 / Reduced ≤ 2

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

62 – 85

75 – 95

in.lb/arcmin

549 – 752

664 – 841

Nm

1635

1635

in.lb

14471

14471

dB(A)

≤ 60

≤ 57

Lubricated for life

Lubricated for life

24 – 48

19 – 38

Lubrication
Clamping hub diametermm

Planetary gearboxes

Ratioa lphaApplication-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stageb)29XP+ 050 MF 1- / 2-stage

Ratio

i

Max. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage3 / 4 / 5 / 7 / 8 / 10

16 / 20 / 25 / 28 / 32 / 35 /40 / 50 / 64 / 70 / 100

Nm

2400 – 3840

1980 – 3696

in.lb

21242 – 33987

17525 – 32713

Nm

1800 – 3360

1650 – 3080

in.lb

15931 – 29739

14604 – 27260

Nm

513 – 927

1179 – 1505

in.lb

4544 – 8203

10426 – 13323

Nm

3445 – 5000

3505 – 5000

in.lb

30493 – 44254

31022 – 44254

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

1500 – 2300

2700 – 3400

Max. input speed

n1Max

rpm

4500

5000

Max. torsional backlashjtarcminStandard ≤ 3 / Reduced ≤ 1Standard ≤ 4 / Reduced ≤ 2

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

160 – 250

240 – 290

in.lb/arcmin

1416 – 2213

2124 – 2567

Nm

3256

3256

in.lb

28818

28818

dB(A)

≤ 64

≤ 58

Lubricated for life

Lubricated for life

38 – 55

24 – 48

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stage

b)

30

mm

Planetary gearboxes

a lpha31

XP+ HIGH SPEED – for more performance in continuous operation

The XP+ HIGH SPEED enables new dimensions in powertransmission for applications in continuous operation - in thesmallest installation space. An optimized drive and lubrication
system enables higher nominal speeds and an increased
service life of up to 30,000 hours.
The XP+ HIGH SPEED impresses with maximum power density· if you require an even more compact drive· if you wish to enhance the performance of your machine incontinuous operation· if maximum reliability and service life are required

Produkthighlights
Max. backlash [arcmin] ≤ 2 - 6
Lower temperature development
Maximum nominal speeds
30,000 h service lifeXP+

XP+ HIGH SPEED with cynapse ®

32

Multiple output configurations
for greater flexibility
Smooth shaft, shaft with key, splined
shaft (DIN 5480), blind hollow shaft,
System output

XP+ HIGH SPEED with splined shaft

XP+ HIGH SPEED compared to industry standard

Tilting moment
[Nm]

100 %

Torsional backlash[arcmin]Planetary gearboxes

Service life[h]Torsional rigidity[Nm/arcmin]Max. acceleration torque
[Nm]

200 %
300 %

Smooth running

Nominal speed[rpm]

XP+ HIGH SPEED

Heat build-up
approx. 40°C

XP + HIGH SPEED
MC version

industry standard

Heat build-up
approx. 80°C

Industry standard

Matched accessories for your XP+ gearbox
You can find more information in the "Accessories" product catalog33

XP+ 020 MC 1- / 2-stage

Ratio

i

Max. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage3 / 4 / 5 / 7 / 8 / 10

16 / 20 / 25 / 28 / 32 / 35 /40 / 50 / 64 / 70 / 100Nm

68 – 90

70 – 90in.lb

602 – 797

620 – 797Nm

68 – 90

70 – 90in.lb

602 – 797

620 – 797Nm

41 – 53

56 – 72in.lb

362 – 468

496 – 637Nm

325 – 390

325 – 418

in.lb

2877 – 3452

2877 – 3696

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

4500

4500

Max. input speed

n1Max

rpm

6000

6000

Max. torsional backlashjtarcminStandard ≤ 6 / Reduced ≤ 4Standard ≤ 8 / Reduced ≤ 6

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

14 – 17

15 – 20

in.lb/arcmin

124 – 150

133 – 177

Nm

675

675

in.lb

5974

5974

dB(A)

≤ 56

≤ 53

Lubricated for life

Lubricated for life

19 – 24

14 – 19

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stage

b)

34

mm

XP+ 030 MC 1- / 2-stageiMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage3 / 4 / 5 / 7 / 8 / 10

16 / 20 / 25 / 28 / 32 / 35 /40 / 50 / 64 / 70 / 100Nm

180 – 240

180 – 240

in.lb

1593 – 2124

1593 – 2124Nm

180 – 240

180 – 240

in.lb

1593 – 2124

1593 – 2124

Nm

76 – 97

138 – 189

in.lb

677 – 861

1221 – 1673

Nm

650 – 900

750 – 1125

in.lb

5753 – 7966

6638 – 9957

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

3500 – 4500

4500

Max. input speed

n1Max

rpm

6000

6000

Max. torsional backlashjtarcminStandard ≤ 4 / Reduced ≤ 2Standard ≤ 6 / Reduced ≤ 4

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

32 – 40

35 – 45

in.lb/arcmin

283 – 354

310 – 398

Nm

1296

1296

in.lb

11471

11471

dB(A)

≤ 59

≤ 56

Lubricated for life

Lubricated for life

24 – 38

19 – 24

Lubrication
Clamping hub diametermm

Planetary gearboxes

Ratioa lphaApplication-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stageb)

35XP+ 040 MC 1- / 2-stage

Ratio

i

Max. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage3 / 4 / 5 / 7 / 8 / 10

16 / 20 / 25 / 28 / 32 / 35 /40 / 50 / 64 / 70 / 100Nm

310 – 480

380 – 480

in.lb

2744 – 4248

3363 – 4248

Nm

310 – 480

380 – 480

in.lb

2744 – 4248

3363 – 4248

Nm

127 – 195

277 – 367

in.lb

1122 – 1730

2447 – 3250

Nm

1375 – 2310

1375 – 2310

in.lb

12170 – 20445

12170 – 20445

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

3000 – 4500

4500

Max. input speed

n1Max

rpm

6000

6000

Max. torsional backlashjtarcminStandard ≤ 4 / Reduced ≤ 2Standard ≤ 6 / Reduced ≤ 4

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

62 – 85

75 – 95

in.lb/arcmin

549 – 752

664 – 841

Nm

1635

1635

in.lb

14471

14471

dB(A)

≤ 60

≤ 57

Lubricated for life

Lubricated for life

38 – 48

24 – 38

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stage

b)

36

mm

XP+ 050 MC 1- / 2-stageiMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage3 / 4 / 5 / 7 / 8 / 10

16 / 20 / 25 / 28 / 32 / 35 /40 / 50 / 64 / 70 / 100Nm

700 – 880

700 – 880

in.lb

6196 – 7789

6196 – 7789

Nm

700 – 880

700 – 880

in.lb

6196 – 7789

6196 – 7789

Nm

289 – 492

560 – 704

in.lb

2554 – 4355

4956 – 6231

Nm

3445 – 5000

3505 – 5000

in.lb

30493 – 44254

31022 – 44254

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

3000 – 4500

4500

Max. input speed

n1Max

rpm

4500 – 6000

6000

Max. torsional backlashjtarcminStandard ≤ 4 / Reduced ≤ 2Standard ≤ 6 / Reduced ≤ 4

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

160 – 250

240 – 290

in.lb/arcmin

1416 – 2213

2124 – 2567

Nm

3256

3256

in.lb

28818

28818

dB(A)

≤ 64

≤ 58

Lubricated for life

Lubricated for life48

38

Lubrication
Clamping hub diametermm

Planetary gearboxes

Ratioa lphaApplication-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stageb)

37

The new XP+ HIGH TORQUE –the highest torque solution on the market

The new XP+ HIGH TORQUE is the high-performance expansion of our XP+ family. It convinces with the highest
torque density on the market and enables the realizationof highly dynamic applications for even shorter cycle times
with highest positioning accuracy at the same time. In
addition, the XP+ HIGH TORQUE creates space for evenmore compact drive axles.
The XP+ HIGH TORQUE convinces with highest power density· if shortest cycle times are essential for you· if increased masses and process forces are required· if significant savings in installation space and 			weight are advantageous for your machine

Produkthighlights
Max. backlash [arcmin] ≤ 1
Increase of productivity andmore process quality
Increase of productivity as well
as more process quality

XP+

Most compact installation length
Multiple output configurations
for greater flexibility
Smooth shaft, splined shaft (DIN 5480),blind hollow shaft, System output

Cycle time reduction in comparison

Torque increase in comparison (size 20)

Speed[m/min]Acceleration torque max.
[Nm]

30

500

20

400

10

300

0

200

-10

100

390

176

0

0.05

XP+ HIGH TORQUE

0.1

0.15

Industry standard

0.2

0.25
Time
[s]

0
XP+ HIGH TORQUE

Industry standard

i=5/5.5

XP+ HIGH TORQUE compared to industry standard

Tilting moment
[Nm]

100 %

Torsional backlash[arcmin]Planetary gearboxes

Service life[h]Torsional rigidity[Nm/arcmin]Max. acceleration torque
[Nm]

200 %
300 %

Smooth running

Nominal speed[rpm]

industry standard

XP+ HIGH TORQUE

Lateral forces with lever arm in comparison (size 20)

Lateral force max.
[N]

Position error
[µm]

8000
6000

Positioning in comparison

200
100

6000

0

4000
3587

-100

2000
-200
0

0
XP+ planetary gearbox

0.05

0.1

0.15

0.2

0.25
Time
[s]

Industry standard
XP+ planetary gearbox

lever arm x2=21mm

Industry standard39XP+ 020 MA 1- / 2-stage

Ratio

i

Max. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage

5.5

22 / 27.5

Nm

390

410

in.lb

3452

3629

Nm

365

365

in.lb

3231

3231

Nm

120

135 – 145

in.lb

1062

1195 – 1283

Nm

390

418

in.lb

3452

3700

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2900

3500

Max. input speed

n1Max

rpm

7500

8500

Max. torsional backlashjtarcminStandard ≤ 1Standard ≤ 1

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

20

24

in.lb/arcmin

177

212

Nm

675

675

in.lb

5974

5974

dB(A)

≤ 56

≤ 53

Lubricated for life

Lubricated for life

19 – 24

14 – 19

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stage

b)

40

mm

XP+ 030 MA 1- / 2-stageiMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage

5.5

22 / 27.5 / 38.5 / 55

Nm

730

660 – 730

in.lb

6461

5842 – 6461

Nm

660

600 – 660

in.lb

5842

5310 – 5842

Nm

220

320 – 410

in.lb

1947

2832 – 1125

Nm

900

1125

in.lb

7966

9957

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2500

3100 – 3500

Max. input speed

n1Max

rpm

5500

6500

Max. torsional backlashjtarcminStandard ≤ 1Standard ≤ 1

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin48

54

in.lb/arcmin

425

478

Nm

1296

1296

in.lb

11470

11470

dB(A)

≤ 59

≤ 56

Lubricated for life

Lubricated for life

24 – 38

19 – 28

Lubrication
Clamping hub diametermm

Planetary gearboxes

Ratioa lphaApplication-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stageb)41XP+ 040 MA 1- / 2-stage

Ratio

i

Max. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torqueT2N(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2Not

1-stage

2-stage

5.5

22 / 27.5 / 38.5 / 55

Nm

1485

1485

in.lb

13143

13143

Nm

1350

1350

in.lb

11949

11949

Nm

440

530 – 705

in.lb

3894

4691 – 6240

Nm

2300

2300

in.lb

20357

20357

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2100

2900 – 3200

Max. input speed

n1Max

rpm

5000

6000

Max. torsional backlashjtarcminStandard ≤ 1Standard ≤ 1

Torsional rigidity

Ct21

Nm/arcmin

102

105

in.lb/arcmin

903

929

Nm

1635

1635

in.lb

14470

14470

dB(A)

≤ 60

≤ 57

Lubricated for life

Lubricated for life

32 – 48

24 – 38

Max. tilting moment

M2KMaxOperating noise

LPA

c)

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stage

b)

42

mm

XP+ 050 MA 1- / 2-stageiMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage

5.5

22 / 27.5 / 38.5 / 55

Nm

4400

3800– 4400

in.lb

38944

33633 – 38944

Nm

4000

3200 – 4000

in.lb

35403

28322 – 35403

Nm

1200

1510 – 2100

in.lb

10621

13364 – 18586

Nm

5000

5000

in.lb

44254

44254

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

1500

2700 – 2900

Max. input speed

n1Max

rpm

4500

5000

Max. torsional backlashjtarcminStandard ≤ 1Standard ≤ 1

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

300

350

in.lb/arcmin

2655

3098

Nm

3256

3256

in.lb

28816

28816

dB(A)

≤ 64

≤ 58

Lubricated for life

Lubricated for life

48 – 65

32 – 48

Lubrication
Clamping hub diametermm

Planetary gearboxes

Ratioa lphaApplication-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stageb)43RP+ – The high-precision powerhouse

This gearbox series sets standards in terms of power
density, modularity and easy installation. It is used in all
applications where the individual requirements far exceed
what has previously been possible. RP+ gearboxes combine
all the advantages of the familiar gearbox series:· Reduced backlash of ≤ 1 arcmin· Maximum power density· Extremely smooth-running thanks to helical toothing· Maximum positioning accuracy and world-class lifespan

The RP+ impresses with maximum power density· if your drive requires maximum performance· if you value world-class engineering· if you require an even more compact system

The RP+ compared to the industry standard
Torsional rigidity[Nm/arcmin]

RP+
Torsional backlash[arcmin]Radial force[N]

Product highlights
100 %Max. torsional backlash [arcmin] ≤ 1 – 3

200 %High axial and radial forces

300 %Easy installation
Optimized for rack and pinion
applications
Available output types
Flange, System output

RP+ with rack and pinion

44

400 %

Operating noise[dB(A)]

Max. acceleration torque
[Nm]
RP+

industry standard

RPK+ with hypoid angle section

Integrated slots reducethe design and installation
requirements to a minimum
Application adapted perfectly
for a maximum service life

Planetary gearboxes

Can withstand high tilting
torquesa ti o n is
r in fo rm
Fu rt h e in th e „ a lp h agleav a il a b s te m s“ c a ta loSy
L in e a r a t w w w.
eo r o n li n in -a lp h a .c o mtew it te n s

RP+

Optimized for rack and pinion
applications

RP+ available as RPM+ servo actuator version (series in an even more compact design)45RP+ 030 MF 1-stage
1-stageRatio

iMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

4 / 5 / 7 / 10Nm

352 – 380

in.lb

3115 – 3363

Nm

318 – 380

in.lb

2815 – 3363

Nm

172 – 182

in.lb

1522 – 1611

Nm

625

in.lb

5532

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2000 – 2800

Max. input speed

n1Max

rpm

5500

Max. torsional backlashjtarcminStandard ≤ 3 / Reduced ≤ 1

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

62 – 86in.lb/arcmin

549 – 761

Nm

1800

in.lb

15931

dB(A)

≤ 61

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)

1-stageb)

46

Lubricated for lifemm

19 – 38RP+ 040 MF 1-stagea lpha1-stageiMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

4 / 5 / 7 / 10Nm

720 – 1120

in.lb

6373 – 9913

Nm

540 – 700

in.lb

4779 – 6196

Nm

272 – 318

in.lb

2408 – 2810

Nm

1563

in.lb

13829

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2500 – 3200

Max. input speed

n1Max

rpm

5000

Max. torsional backlashjtarcminStandard ≤ 3 / Reduced ≤ 1

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

123 – 190

in.lb/arcmin

1089 – 1682

Nm

3600

in.lb

31863

dB(A)

≤ 61

Lubrication
Clamping hub diameter

Planetary gearboxes

Ratio

Lubricated for lifemm

24 – 48

Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)

1-stageb)

47

RP+ 050 MF 1-stage
1-stageRatio

iMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

4 / 5 / 7 / 10
Nm

2240 – 2560

in.lb

19826 – 22658

Nm

1400 – 1600

in.lb

12391 – 14161

Nm

725 – 927

in.lb

6419 – 8203

Nm

3204 – 3438

in.lb

28357 – 30425

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

1500 – 2300

Max. input speed

n1Max

rpm

4500

Max. torsional backlashjtarcminStandard ≤ 3 / Reduced ≤ 1

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

445 – 610

in.lb/arcmin

3939 – 5399

Nm

11000

in.lb

97359

dB(A)

≤ 66

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)

1-stageb)

48

Lubricated for lifemm

38 – 48

Planetary gearboxes

a lpha49

RP+ 030 MA 1- / 2-stage

Ratio

i

Max. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage

5.5

16 / 22 / 27.5 / 38.5 / 55

Nm

583

583

in.lb

5160

5160

Nm

530

530

in.lb

4691

4691

Nm

243

315 – 432

in.lb

2150

2788 – 3823

Nm

1200

1200

in.lb

10621

10621

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2000

3000

Max. input speed

n1Max

rpm

5500

7500

Max. torsional backlashjtarcminStandard ≤ 1Standard ≤ 1

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin105

100 – 105

in.lb/arcmin

929

885 – 929

Nm

1800

1800

in.lb

15931

15931

dB(A)

≤ 65

≤ 58

Lubricated for life

Lubricated for life

19 – 38

19 – 24

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stage

b)

50

mm

RP+ 030 MA 3-stagea lpha3-stageiMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

66 / 88 / 110 / 154 / 220
Nm

583

in.lb

5160

Nm

530

in.lb

4691

Nm

284 – 397

in.lb

2513 – 3513

Nm

1200

in.lb

10621

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

3000

Max. input speed

n1Max

rpm

7500

Max. torsional backlashjtarcminStandard ≤ 1

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin95

in.lb/arcmin

841

Nm

1800

in.lb

15931

dB(A)

≤ 56

Lubrication
Clamping hub diameter

Planetary gearboxes

Ratio

Lubricated for lifemm

19

Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)

3-stageb)51

RP+ 040 MA 1- / 2-stage

Ratio

i

Max. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage

5.5

16 / 22 / 27.5 / 38.5 / 55

Nm

1402

1270 – 1402

in.lb

12406

11243 – 12406

Nm

950

950

in.lb

8408

8408

Nm

417

476 – 653

in.lb

3695

4217 – 5779

Nm

2865

2420 – 2613

in.lb

25358

21416 – 25358

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2500

4000 – 4100

Max. input speed

n1Max

rpm

5000

6250

Max. torsional backlashjtarcminStandard ≤ 1Standard ≤ 1

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

220

220

in.lb/arcmin

1947

1947

Nm

3600

3600

in.lb

31863

31863

dB(A)

≤ 63

≤ 61

Lubricated for life

Lubricated for life

38 – 48

24 – 38

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stage

b)

52

mm

RP+ 040 MA 3-stagea lpha3-stageiMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

66 / 88 / 110 / 154 / 220
Nm

1402

in.lb

12406

Nm

950

in.lb

8408

Nm

690 – 760

in.lb

6103 – 6727

Nm

2865

in.lb

25358

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

4100

Max. input speed

n1Max

rpm

6250

Max. torsional backlashjtarcminStandard ≤ 1

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin205

in.lb/arcmin

1814

Nm

3600

in.lb

31863

dB(A)

≤ 58

Lubrication
Clamping hub diameter

Planetary gearboxes

Ratio

Lubricated for lifemm

24

Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)

3-stageb)

53

RP+ 050 MA 1- / 2-stage

Ratio

i

Max. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage

5.5

16 / 22 / 27.5 / 38.5 / 55

Nm

3822

3518 – 3822

in.lb

33826

28323 – 33826

Nm

3100

2000 – 3100

in.lb

27437

17702 – 27437

Nm

1167

1174 – 1977

in.lb

10326

10387 – 17501

Nm

6250

7150

in.lb

55318

63283

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

1500

3100 – 3300

Max. input speed

n1Max

rpm

4500

5625

Max. torsional backlashjtarcminStandard ≤ 1Standard ≤ 1

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

730

670 – 730

in.lb/arcmin

6461

5930 – 6461

Nm

11000

11000

in.lb

97359

97359

dB(A)

≤ 66

≤ 64

Lubricated for life

Lubricated for life48

38 – 48

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stage

b)

54

mm

RP+ 050 MA 3-stagea lpha3-stageiMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

66 / 88 / 110 / 154 / 220
Nm

3023

in.lb

26757

Nm

2600

in.lb

23012

Nm

1602 – 2080

in.lb

14182 – 18410

Nm

8125

in.lb

71913

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

3300

Max. input speed

n1Max

rpm

5625

Max. torsional backlashjtarcminStandard ≤ 1

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin650

in.lb/arcmin

5753

Nm

11000

in.lb

97359

dB(A)

≤ 59

Lubrication
Clamping hub diameter

Planetary gearboxes

Ratio

Lubricated for lifemm38

Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)

3-stageb)55

RP+ 060 MA 1- / 2-stage

Ratio

i

Max. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

1-stage

2-stage

5.5

22 / 27.5 / 38.5 / 55

Nm

7360

6240 – 7535

in.lb

65142

55229 – 66691

Nm

4600

3900 – 5500

in.lb

40714

34518 – 48679

Nm

2829

3120 – 3530

in.lb

25035

27614 – 31243

Nm

10938

15296 – 15333

in.lb

96806

135377 – 135709

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

1000

2750

Max. input speed

n1Max

rpm

3125

4375

Max. torsional backlashjtarcminStandard ≤ 1Standard ≤ 1,5

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

1200

1200

in.lb/arcmin

10621

10621

Nm

21000

21000

in.lb

185867185867

dB(A)

≤ 68

≤ 64

Lubricated for life

Lubricated for life

55

48

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stage

b)

56

mm

RP+ 060 MA 3-stagea lpha3-stageiMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

66 / 88 / 110 / 154 / 220
Nm

6987

in.lb

61838

Nm

5500

in.lb

48679

Nm

2923 – 4196

in.lb

25869 – 37136

Nm

15333

in.lb

135709Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2750

Max. input speed

n1Max

rpm

4375

Max. torsional backlashjtarcminStandard ≤ 1,5

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin1200

in.lb/arcmin

10621

Nm

21000

in.lb

185867

dB(A)

≤ 59

Lubrication
Clamping hub diameter

Planetary gearboxes

Ratio

Lubricated for lifemm38

Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)

3-stageb)

57

RP+ 080 MA 1- / 2-stage

Ratio

i

Max. torque a)T2αMax. acceleration torque(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2B
T2N
T2Not

1-stage

2-stage

5.5

22 / 27.5 / 38.5 / 55

Nm

10450

10450

in.lb

92491

92491

Nm

8000

7200 – 10000

in.lb

70806

63726 – 88508

Nm

4313

4602 – 4921

in.lb

38174

40736 – 43558

Nm

18750

25000

in.lb

165953221270

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

900

1950

Max. input speed

n1Max

rpm

3125

4375

Max. torsional backlashjtarcminStandard ≤ 1Standard ≤ 1,5

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

2000

2000

in.lb/arcmin

17702

17702

Nm

34000

34000

in.lb

300927300927

dB(A)

≤ 68

≤ 65

Lubricated for life

Lubricated for life

60

48

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stage

1-stage

b)

58

mm

RP+ 080 MA 3-stagea lpha3-stageiMax. torque a)T2αMax. acceleration torque(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2B
T2N
T2Not

66 / 88 / 110 / 154 / 220
Nm

10450

in.lb

92491

Nm

10000

in.lb

88508

Nm

4567 – 7308

in.lb

40418 – 64684

Nm

25000

in.lb

221270

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

1950

Max. input speed

n1Max

rpm

4375

Max. torsional backlashjtarcminStandard ≤ 1,5

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin1800

in.lb/arcmin

15931

Nm

34000

in.lb

300927

dB(A)

≤ 62

Lubrication
Clamping hub diameter

Planetary gearboxes

Ratio

Lubricated for lifemm

38 – 48

Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)

3-stage

b)

59

60

Hypoid gearboxes

XPK+ and RPK+ hypoid gearboxes
A new performance standard61XPK+ / RPK+ – Power and precision in a compact design

New standard now also available as a hypoid
versionBoth the XP+ and RP+ Premium planetary gearboxes are now
available in a right-angle version with hypoid gearing. The
axis offset of hypoid gearboxes allows both higher ratios
in one section (ratio i = 3 – 10) as well as higher torques
compared to bevel gearboxes. The high torque density
allows for an extremely compact, space-saving design. The
mesh frequency and high torsional rigidity of the gearbox
are also extremely impressive since they ensure a higher
degree of positioning accuracy and extremely smooth
operation.
XPK+

XPK+ and RPK+ compared to industry standard
Torsional rigidity[Nm/arcmin]

Product highlights
Max. torsional backlash
XPK+≤ 4 arcmin (Standard)≤ 2 arcmin (Reduced)
RPK+	≤ 1.3 arcmin

Torsional backlash[arcmin]Radial force[N]

XPK+ and RPK+:
100 %Range of transmission ratios: i = 12 – 5,500
High axial and radial forces

200 %High torsional rigidity

300 %Maximum performance in small installation space
Optimized for rack and pinion applications
Multiple output configurations for
greater flexibility
Smooth shaft, shaft with key, splined shaft (DIN 5480),blind hollow shaft, flange, System output

XPK+ with pinion and slots

62

400 %

Operating noise[dB(A)]

Max. acceleration torque
[Nm]
XPK+

RPK+

industry standard

XPK+ with pinion, slots and rack

The ideal partnershipPremium Linear Systems with the XPK+ or RPK+ are used in
all applications where the individual requirements far exceed
what has previously been possible. Compared to the industry
standard, the values of the RPK+ have been improved by 150 %on average.

Integrated slots reduce the design andinstallation requirements to a minimum

Hypoid gearboxes

High-quality hypoid section with gear
ratios of i = 3 – 10 in the angle section

RPK+ with pinion
Metal bellows coupling incorporated for thermal
length compensation and protection of the motor
bearing

The pinions are specially adapted to thegearbox and allow the transmission of
extremely high feed forces

C

B
D

A
RPK with rack and pinion+

Flexibility during installation63XPK+ 020 MF 2- / 3-stage
2-stageRatio

iMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

3-stage

12 / 16 / 20 / 25 / 28 / 64 / 84 / 100 / 125 / 140 / 175 / 200 /35 / 40 / 50 / 70 / 100 250 / 280 / 350 / 400 / 500 / 700 / 1000Nm

80 – 240

80 – 240in.lb

708 – 2124

708 – 2124

Nm

80 – 180

80 – 180

in.lb

708 – 1593

708 – 1593

Nm

60 – 75

60 – 90in.lb

531 – 664

531 – 797Nm

160 – 350

160 – 350

in.lb

1416 – 3098

1416 – 3098

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

3000 – 3800

5000 – 5500

Max. input speed

n1Max

rpm

7500

6000

Max. torsional backlashjtarcminStandard ≤ 5 /Reduced ≤ 3Standard ≤ 5 / Reduced ≤ 3

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

12 – 14

11 – 15

in.lb/arcmin

106 – 124

97 – 133

Nm

675

675

in.lb

5974

5974

dB(A)

≤ 66

≤ 66

Lubricated for life

Lubricated for life

14 – 19

11 – 14

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)

3-stage

2-stage

b)

64

mm

XPK+ 030 MF 2- / 3-stagea lpha2-stageRatio

iMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

3-stage

12 / 16 / 20 / 25 / 28 / 64 / 84 / 100 / 125 / 140 / 175 / 200 /35 / 40 / 50 / 70 / 100 250 / 280 / 350 / 400 / 500 / 700 / 1000Nm

200 – 470

200 – 470

in.lb

1770 – 4160

1770 – 4160

Nm

200 – 420

200 – 420

in.lb

1770 – 3717

1770 – 3717

Nm

120 – 170

120 – 210

in.lb

1062 – 1505

1062 – 1859Nm

380 – 781

380 – 781

in.lb

3363 – 6912

3363 – 6912

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

3000 – 3800

4500

Max. input speed

n1Max

rpm

7500

6000

Max. torsional backlashjtarcminStandard ≤ 4 /Reduced ≤ 2Standard ≤ 4 / Reduced ≤ 2

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

29 – 36

29 – 36

in.lb/arcmin

257 – 319

257 – 319

Nm

1296

1296

in.lb

11471

11471

dB(A)

≤ 68

≤ 68

Lubricated for life

Lubricated for life

19 – 28

14 – 19

Lubrication
Clamping hub diametermm

Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)

3-stage

2-stage

Hypoid gearboxesb)65

XPK+ 040 MF 2- / 3-stage
2-stageRatio

iMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

3-stage

12 / 16 / 20 / 25 / 28 / 64 / 84 / 100 / 125 / 140 / 175 / 200 /35 / 40 / 50 / 70 / 100 250 / 280 / 350 / 400 / 500 / 700 / 1000Nm

500 – 1020

500 – 1020

in.lb

4425 – 9028

4425 – 9028

Nm

500 – 850

500 – 850

in.lb

4425 – 7523

4425 – 7523

Nm

240 – 370

240 – 400

in.lb

2124 – 3275

2124 – 3540

Nm

880 – 1820

880 – 1820

in.lb

7789 – 16108

7789 – 16108

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2700 – 3500

4000 – 4200

Max. input speed

n1Max

rpm

5500

4500

Max. torsional backlashjtarcminStandard ≤ 4 /Reduced ≤ 2Standard ≤ 4 / Reduced ≤ 2

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

60 – 77

60 – 77

in.lb/arcmin

531 – 682

531 – 682

Nm

1635

1635

in.lb

14471

14471

dB(A)

≤ 70

≤ 70

Lubricated for life

Lubricated for life

28 – 38

19 – 24

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)

3-stage

2-stage

b)

66

mm

XPK+ 050 MF 2- / 3-stagea lpha2-stageRatio

iMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

3-stage

12 / 16 / 20 / 25 / 28 / 64 / 84 / 100 / 125 / 140 / 175 / 200 /35 / 40 / 50 / 70 / 100 250 / 280 / 350 / 400 / 500 / 700 / 1000Nm

840 – 2520

840 – 2520

in.lb

7435 – 22304

7435 – 22304

Nm

840 – 2100

840 – 2100

in.lb

7435 – 18587

7435 – 18587

Nm

640 – 750

640 – 1250

in.lb

5665 – 6638

5665 – 11064

Nm

1600 – 3505

1600 – 3505

in.lb

14161 – 31022

14161 – 31022

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2300 – 3000

4000 – 4200

Max. input speed

n1Max

rpm

5000

4500

Max. torsional backlashjtarcminStandard ≤ 4 /Reduced ≤ 2Standard ≤ 4 / Reduced ≤ 2

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

176 – 224

176 – 226

in.lb/arcmin

1558 – 1983

1558 – 2000

Nm

3256

3256

in.lb

28818

28818

dB(A)

≤ 71

≤ 70

Lubricated for life

Lubricated for life

38

24 – 38

Lubrication
Clamping hub diametermm

Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)

3-stage

2-stage

Hypoid gearboxesb)67

RPK+ 040 MA 3- / 4-stage

Ratio

i

Max. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

3-stage

4-stage48 / 66 / 88 / 110 / 137.5 /154 / 220 / 385

330 / 462 / 577.5 / 770 / 1078 /
1540 / 2695 / 3850 / 5500

Nm

1100 – 1402

1402

in.lb

9736 – 12409

12409

Nm

950

950

in.lb

8408

8408

Nm

675

675

in.lb

5974

5974

Nm

1520 – 2613

2090 – 2613

in.lb

13453 – 23127

18498 – 23127

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2800 – 3800

4300 – 4400

Max. input speed

n1Max

rpm

7500

6000

Max. torsional backlashjtarcminStandard ≤ 1,3Standard ≤ 1,3

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

202 – 215

202 – 217

in.lb/arcmin

1788 – 1903

1788 – 1921

Nm

3600

3600

in.lb

31863

31863

dB(A)

≤ 68

≤ 68

Lubricated for life

Lubricated for life

19 – 28

14 – 19

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)4-stage

3-stage

b)

68

mm

RPK+ 050 MA 3- / 4-stage

Ratio

i

Max. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torqueT2N(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2Not

a lpha3-stage

4-stage48 / 66 / 88 / 110 / 137.5 /154 / 220 / 385

330 / 462 / 577.5 / 770 / 1078 /
1540 / 2695 / 3850 / 5500

Nm

2750 – 3822

3200 – 3822

in.lb

24340 – 33828

28323 – 33828

Nm

2720 – 3100

2000 – 3100

in.lb

24074 – 27437

17702 – 27437

Nm

1600 – 1650

1400 – 1650

in.lb

14161 – 14604

12391 – 14604

Nm

3520 – 7150

4840 – 7150

in.lb

31155 – 63283

42838 – 63283

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2800 – 3600

3800 – 4100

Max. input speed

n1Max

rpm

5500

4500

Max. torsional backlashjtarcminStandard ≤ 1,3Standard ≤ 1,3

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise

LPA

c)

Nm/arcmin

634 – 687

634 – 689

in.lb/arcmin

5611 – 6080

5611 – 6098

Nm

11000

11000

in.lb

97359

97359

dB(A)

≤ 70

≤ 70

Lubricated for life

Lubricated for life

28 – 38

19 – 24

Lubrication
Clamping hub diametermm

Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)4-stage

3-stage

Hypoid gearboxesb)69

RPK+ 060 MA 3- / 4-stage

Ratio

i

Max. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

3-stage

4-stage

66 / 88 / 110 / 137.5 / 154 /
220 / 385

330 / 462 / 577.5 / 770 / 1078 /
1540 / 2695 / 3850 / 5500

Nm

4620 – 7535

6240 – 7535

in.lb

40891 – 66691

55229 – 66691

Nm

4620 – 5500

3900 – 5500

in.lb

30978 – 48679

34518 – 48679

Nm

3500

3500

in.lb

30978

30978

Nm

8800 – 14575

8800 – 14575

in.lb

77887 – 129000

77887 – 129000

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2300 – 2900

3800 – 4000

Max. input speed

n1Max

rpm

5000

4500

Max. torsional backlashjtarcminStandard ≤ 1,8Standard ≤ 1,8

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

960 – 1114

953 – 1099

in.lb/arcmin

8497 – 9860

8435 – 9727

Nm

21000

21000

in.lb

185867185867

dB(A)

≤ 71

≤ 71

Lubricated for life

Lubricated for life

38

24 – 38

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)4-stage

3-stage

b)

70

mm

RPK+ 080 MA 3- / 4-stage

Ratio

i

Max. torque a)T2αMax. acceleration torque(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2B
T2N
T2Not

a lpha3-stage

4-stage

66 / 88 / 110 / 137.5 / 154 /
220 / 385

330 / 462 / 577.5 / 770 / 1078 /
1540 / 2695 / 3850 / 5500

Nm

10340 – 10450

10450

in.lb

91517 – 92491

92491

Nm

10000

7200 – 10000

in.lb

88508

63726 – 88508

Nm

5400

5400

in.lb

47794

47794

Nm

19800 – 25000

19800 – 25000

in.lb

175246 – 221270

175246 – 221270

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

1800 – 3100

3300 – 3600

Max. input speed

n1Max

rpm

4500

4000

Max. torsional backlashjtarcminStandard ≤ 1,8Standard ≤ 1,8

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

1747 – 1901

1735 – 1879

in.lb/arcmin

15462 – 16825

15356 – 16631

Nm

34000

34000

in.lb

300927300927

dB(A)

≤ 71

≤ 71

Lubricated for life

Lubricated for life48

38 – 48

Lubrication
Clamping hub diametermm

Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)4-stage

3-stage

Hypoid gearboxesb)71Compact and powerful
XPC+ and RPC+

72

Bevel gearboxes

bevel gearboxes73

XPC+ / RPC+ – High precision and low ratios around the corner

New performance standard, also available in thebevel version
Both the XP+ and RP+ Premium planetary gearboxes are now
available in a right-angle version with bevel toothing. Bevel
gearboxes are primarily characterized by low gear ratios (ratio
1 and 2) in the angle section. Consequently, right-angle andplanetary gearbox combinations can achieve the same low
ratios as planetary gearboxes. The product design has apositive influence on temperature development in the gearbox
and reduces overall heat development in the system as a result.
The overall system achieves a higher degree of positioning
accuracy as a consequence.
XPC +XPC+ and RPC+ compared to industry standard
Torsional rigidity[Nm/arcmin]

Product highlights
Max. torsional backlash
XPC+≤ 4 arcmin (Standard)≤ 2 arcmin (Reduced)
RPC+	≤ 1.3 arcmin

Radial force[N]

Torsional backlash[arcmin]

XPC + and RPC +:Low ratios of i = 4 – 88 possible

100 %Optimized temperature distribution, even at highspeeds200 %High tilting moments and torsional rigidity

300 %Optimized for rack and pinion applications
Multiple output configurations for
greater flexibility
Smooth shaft, shaft with key, splined shaft (DIN 5480),blind hollow shaft, flange, System output

XPC + with pinion and slots

74

400 %

Operating noise[dB(A)]

Max. acceleration torque
[Nm]
XPC+

RPC+

industry standard

XPC + with pinion, slots and rackSpecially designed output fortransmitting extremely high torques

Intelligent design reduces losses toa minimum

High-quality bevel toothing with low
gear ratios of i = 1 – 2 in the angle
sectionLow temperaturedevelopment, even at highspeedsBevel gearboxes

RPC +Metal bellows coupling incorporated for thermal
length compensation and protection of the motor
bearing

RPC + with pinion and slots

RPC + with pinion, slots and rack75

XPC+ 010 MF 2-stage
2-stageRatio

iMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

4 / 5 / 7 / 8 / 10 / 14 / 20
Nm

48 – 84in.lb

425 – 743

Nm

40 – 70in.lb

354 – 620

Nm

27 – 28

in.lb

239 – 248Nm

100 – 165

in.lb

885 – 1460

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

3300 – 3750

Max. input speed

n1Max

rpm

6000

Max. torsional backlashjtarcminStandard ≤ 5 / Reduced ≤ 3

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

3.1 – 5,5

in.lb/arcmin

27 – 49

Nm

339

in.lb

3000

dB(A)

≤ 68

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stageb)

76

Lubricated for lifemm

14 – 19

XPC+ 020 MF 2-stagea lpha2-stageRatio

iMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

4 / 5 / 7 / 8 / 10 / 14 / 20Nm

144 – 240

in.lb

1275 – 2124

Nm

120 – 180

in.lb

1062 – 1593

Nm

60 – 75

in.lb

531 – 664Nm

192 – 418

in.lb

1699 – 3700

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2600 – 3050

Max. input speed

n1Max

rpm

6000

Max. torsional backlashjtarcminStandard ≤ 4 / Reduced ≤ 2

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

9.1 – 14in.lb/arcmin

81 – 124

Nm

675

in.lb

5974

dB(A)

≤ 68

Lubrication
Clamping hub diameter

Lubricated for lifemm

19 – 28

Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)Bevel gearboxes

2-stageb)

77

XPC+ 030 MF 2-stage
2-stageRatio

iMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

4 / 5 / 7 / 8 / 10 / 14 / 20Nm

389 – 486

in.lb

3443 – 4301

Nm

320 – 420

in.lb

2832 – 3717

Nm

120 – 180

in.lb

1062 – 1593

Nm

540 – 800in.lb

4779 – 7081

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

2100 – 2750

Max. input speed

n1Max

rpm

4500

Max. torsional backlashjtarcminStandard ≤ 4 / Reduced ≤ 2

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

23 – 36

in.lb/arcmin

204 – 319

Nm

1296

in.lb

11471

dB(A)

≤ 68

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stageb)

78

Lubricated for lifemm

28 – 38

XPC+ 040 MF 2-stagea lpha2-stageRatio

iMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

4 / 5 / 7 / 8 / 10 / 14 / 20
Nm

792 – 1050

in.lb

7010 – 9293

Nm

700 – 875

in.lb

6196 – 7744

Nm

240 – 370

in.lb

2124 – 3275

Nm

960 – 2170

in.lb

8497 – 19206

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

1550 – 1900

Max. input speed

n1Max

rpm

4500

Max. torsional backlashjtarcminStandard ≤ 4 / Reduced ≤ 2

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

50 – 74

in.lb/arcmin

443 – 655

Nm

1635

in.lb

14471

dB(A)

≤ 70

Lubrication
Clamping hub diameter

Lubricated for lifemm38

Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)Bevel gearboxes

2-stageb)

79

XPC+ 050 MF 2-stage
2-stageRatio

iMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

4 / 5 / 7 / 8 / 10 / 14 / 20
Nm

1512 – 2646

in.lb

13382 – 23419

Nm

1260 – 2205

in.lb

11152 – 19516

Nm

700 – 750

in.lb

6196 – 6638

Nm

1560 – 4795

in.lb

13807 – 42440

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

1050 – 1550

Max. input speed

n1Max

rpm

4000

Max. torsional backlashjtarcminStandard ≤ 4 / Reduced ≤ 2

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

127 – 215

in.lb/arcmin

1124 – 1903

Nm

3256

in.lb

28818

dB(A)

≤ 70

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)2-stageb)

80

Lubricated for lifemm48

RPC+ 040 MA 3-stagea lpha3-stageRatio

iMax. torque a)T2αMax. acceleration torqueT2Not(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2B
T2N

22 / 27.5 / 38.5 / 44 / 55
Nm

1402

in.lb

12409

Nm

2613

in.lb

23127

Nm

950

in.lb

8408

Nm

675

in.lb

5974

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

1800 – 2500

Max. input speed

n1Max

rpm

4500

Max. torsional backlashjtarcminStandard ≤ 1,3

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

194 – 215

in.lb/arcmin

1717 – 1903

Nm

3600

in.lb

31863

dB(A)

≤ 70

Lubrication
Clamping hub diameter

Lubricated for lifemm

28 – 38

Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)Bevel gearboxes

3-stageb)

81

RPC+ 050 MA 3-stage
3-stageRatio

iMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torqueT2N(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2Not

22 / 27.5 / 38.5 / 44 / 55
Nm

3822

in.lb

33828

Nm

3100

in.lb

27437

Nm

1650

in.lb

14604

Nm

5280 – 7150

in.lb

46732 – 63283

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

1300 – 1700

Max. input speed

n1Max

rpm

4500

Max. torsional backlashjtarcminStandard ≤ 1,3

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise

LPA

c)

Nm/arcmin

607 – 671

in.lb/arcmin

5372 – 5939

Nm

11000

in.lb

97359

dB(A)

≤ 71

Lubrication
Clamping hub diameter
Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)

3-stageb)

82

Lubricated for lifemm38

RPC+ 060 MA 3-stagea lpha3-stageRatio

iMax. torque a)T2αMax. acceleration torqueT2B(max. 1000 cycles per hour)

Nominal torque(at n1N)

Emergency stop torque(permitted 1000 times during the service life of the gearbox)

T2N
T2Not

22 / 27.5 / 38.5 / 44 / 55
Nm

7535

in.lb

66691

Nm

5500

in.lb

48679

Nm

3500

in.lb

30978

Nm

8580 – 14575

in.lb

75940 – 129000

Thermal speed limit(with 20°C ambient temperature and 10% torque utilization) b)

n1T

rpm

850 – 1350

Max. input speed

n1Max

rpm

4000

Max. torsional backlashjtarcminStandard ≤ 1,8

Torsional rigidity

Ct21

Max. tilting moment

M2KMaxOperating noise c)

LPA

Nm/arcmin

1039 – 1171

in.lb/arcmin

9196 – 10364

Nm

21000

in.lb

185867

dB(A)

≤ 71

Lubrication
Clamping hub diameter

Lubricated for lifemm48

Application-specific design with cymex® – www.wittenstein-cymex.com
For higher ambient temperatures, please reduce input speedc)
At reference ratio and reference speed. Ratio-specific values available in cymex®.
a)Bevel gearboxes

3-stageb)

83

Basic Line gearbox overview

Product type

CP

CPS

CPK

CPSK

Version

MF

MF

MF

MF

Ratio c)Max. torsional backlash[arcmin] c)

CVH

CVS

MF / MT MF / MTmin. i =

3

3

3

3

7

7

max. i =

100

100

100

100

40

40

Standard

≤ 12

≤ 12

≤ 15

≤ 15

≤ 15

≤ 15

Reduced

–

–

–

–

–

–

x

x

x

x

–

x

Output type
Smooth shaft

x

x

x

x

–

x

Splined shaft (DIN 5480)

–

–

–

–

–

–

Blind hollow shaft

–

–

–

–

–

–

Hollow shaft interface

–

–

–

–

x

–

Keyed hollow shaft

–

–

–

–

x

–

Flanged hollow shaft

–

–

–

–

–

–

Flange

–

–

–

–

–

–

System output

–

–

–

–

–

–

Output on both sides

–

–

–

–

x

x

Shaft with keyd)Input type
x

x

x

x

x

x

b)

–

–

–

–

–

–

Flange with slotted holes

–

–

–

–

–

–

Motor-mounted
Self-contained version

Characteristic

–

–

–

–

–

–

Food-grade lubrication a) b)

x

x

x

x

x

x

Corrosion resistant a) b)

–

–

–

–

–

–

Optimized mass inertia a)

–

–

–

–

–

–

Linear system (rack/pinion)

–

–

–

–

–

–

Servo actuator

–

–

–

–

–

–

ATEX

a)

System solutions

Accessories(please refer to the product pages for further options)

Coupling

x

x

x

x

–

x

Shrink disc

–

–

–

–

x

–

Power reduction: technical data available on request
Please contact WITTENSTEIN alpha
In relation to reference sizesd)Power reduction: Please use our sizing software cymex® for a detailed sizing – www.wittenstein-cymex.com
a)

b)
c)

84

Value Line gearbox overview

Product type

NP

Max. torsional
backlash [arcmin] c)

NPS

NPT

NPR

NTP

NPK

NPLK

NPSK

MF / MA MF / MA MF / MA MF / MA MF / MA

NPTK NPRK

NVH

NVS

HDV

MQ

MF

MF

MF

MF

MF

MF

MF

MF / MTmin. i =

3

3

3

3

3

4

3

3

3

3

3

4

4

4

VersionRatio c)NPL

max. i =

100

100

100

100

100

100

100

100

100

100

100

400

400

400

Standard

≤8

≤8

≤8

≤8

≤8

≤5

≤ 11

≤ 11

≤ 11

≤ 11

≤ 11

≤6

≤6

≤ 10

Reduced

–

–

–

–

–

–

–

–

–

–

–

–

–

–

x

x

x

–

x

–

x

x

x

–

x

–

x

x

Output type
Smooth shaft

x

x

x

–

x

–

x

x

x

–

x

–

x

x

Splined shaft (DIN 5480)

–

x

x

–

x

–

–

x

x

–

x

–

–

–

Blind hollow shaft

–

–

–

–

–

–

–

–

–

–

–

–

–

–

Hollow shaft interface

–

–

–

–

–

–

–

–

–

–

–

x

–

–

Keyed hollow shaft

–

–

–

–

–

–

–

–

–

–

–

x

–

–

Flanged hollow shaft

–

–

–

–

–

–

–

–

–

–

–

–

–

–

Flange

–

–

–

x

–

x

–

–

–

x

–

–

–

–

System output

–

–

–

–

–

–

–

–

–

–

–

–

–

–

Output on both sides

–

–

–

–

–

–

–

–

–

–

–

x

x

–

x

x

x

x

x

x

x

x

x

x

x

x

x

x

–

–

–

–

–

–

–

–

–

–

–

–

–

–

Shaft with keyd)Input type
Motor-mounted
Self-contained versionb)

Characteristic
Flange with slotted holes

–

–

–

–

x

–

–

–

–

–

x

–

–

–

ATEX a)

–

–

–

–

–

–

–

–

–

–

–

–

–

–

Food-grade lubrication a) b)

x

x

x

x

x

x

x

x

x

x

x

x

x

x

Corrosion resistant a) b)

–

–

–

–

–

–

–

–

–

–

–

x

x

x

Optimized mass inertia a)

–

–

–

–

–

–

–

–

–

–

–

–

–

–

Linear system (rack/pinion)

x

x

x

–

x

–

x

x

x

–

x

–

x

–

Servo actuator

–

–

–

–

–

–

–

–

–

–

–

–

–

x

System solutions

Accessories(please refer to the product pages for further options)

Coupling

x

x

x

x

x

x

x

x

x

–

x

–

x

–

Shrink disc

–

–

–

–

–

–

–

–

–

–

–

x

–

–

Power reduction: technical data available on request
Please contact WITTENSTEIN alpha
In relation to reference sizesd)Power reduction: Please use our sizing software cymex® for a detailed sizing – www.wittenstein-cymex.com
a)Product portfolio& company

b)
c)

85

Advanced Line gearbox overview

Product typeSP+

VersionMF

Ratio c)Max. torsional backlash[arcmin] c)SP+
HIGH SPEED

MC

SP+

HIGH SPEED

TP+

MC-L

MF

friction optimized

TP+
HIGH TORQUE

MA

HG+

SK+

SPK+

MF

MF

MF

min. i =

3

3

3

4

22

3

3

12

max. i =

100

100

10

100

302.5

100

100

10000

Standard

≤3

≤4

≤4

≤3

≤1

≤4

≤4

≤4

Reduced

≤1

≤2

≤2

≤1

–

–

–

≤2

x

x

x

–

–

–

x

x

Output shape
Smooth shaft
Shaft with key d)

x

x

x

–

–

–

x

x

Splined shaft (DIN 5480)

x

x

x

–

–

–

x

x

Blind hollow shaft

x

x

x

–

–

–

–

x

Hollow shaft interface

–

–

–

–

–

x

–

–

Keyed hollow shaft

–

–

–

–

–

–

–

–

Flanged hollow shaft

–

–

–

–

–

–

–

–

Flange

–

–

–

x

x

–

–

–

System output

–

–

–

x

x

–

–

–

Output on both sides

–

–

–

–

–

x

x

x

Input type
x

x

x

x

x

x

x

x

b)

x

–

–

x

–

–

–

–

Flange with slotted holes

x

–

–

–

–

–

–

–

ATEX

x

x

–

–

–

x

x

–

Food-grade lubrication a) b)

x

x

x

x

x

x

x

x

Corrosion resistant

x

x

x

x

x

x

x

x

x

x

x

x

x

–

–

–

Linear system (rack / pinion)

x

x

–

x

x

–

x

x

Servo actuator

x

–

–

x

x

–

–

–

Motor-mounted
Self-contained version

Characteristic

a)

a) b)

Optimized mass inertia a)

System solutions

Accessories(please refer to the product pages for further options)

Coupling

x

x

x

x

x

–

x

x

Shrink disc

x

x

x

–

–

x

–

x

Power reduction: technical data available on request
Please contact WITTENSTEIN alpha
In relation to reference sizesd)Power reduction: Please use our sizing software cymex® for a detailed sizing – www.wittenstein-cymex.com
a)

b)
c)

86

TK+

TPK+

MF

MF

TPK+

SC+

SPC+

TPC+

VH+

VS+

VT+

DP+

HDP+

MA

MF

MF

MF

MF

MF

MF

MF / MA

MA

HIGH TORQUE

3

12

66

1

4

4

4

4

4

16

22

100

10000

5500

2

20

20

400

400

400

55

55

≤4

≤4

≤ 1.3

≤4

≤4

≤4

≤3

≤3

≤3

≤3

≤1

–

≤2

–

–

≤2

≤2

≤2

≤2

≤2

≤1

–

–

–

–

x

x

–

–

x

–

–

–

–

–

–

x

x

–

–

x

–

–

–

–

–

–

–

x

–

–

x

–

–

–

–

–

–

–

x

–

–

–

–

–

–

–

–

–

–

–

–

x

–

–

–

–

–

–

–

–

–

–

x

–

–

–

–

x

–

–

–

–

–

–

–

x

–

–

–

x

x

–

–

x

–

–

–

x

x

–

x

x

–

–

x

–

–

–

–

–

x

x

x

–

–

–

x

x

–

–

–

x

x

x

x

x

x

x

x

x

x

x

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

x

x

x

x

x

x

x

x

x

x

x

x

x

x

–

–

–

x

x

x

x

x

–

–

–

–

–

–

–

–

–

x

x

x

x

x

x

x

x

–

x

x

–

–

–

–

–

–

–

–

–

–

–

–

–

x

x

x

x

x

x

–

x

x

–

–

–

–

–

–

x

–

x

–

–

–

–

Product portfolio& company–x87Premium Line gearbox overview

Product type

XP+

HIGH TORQUE

HIGH SPEED

XP+

RP+

HIGH TORQUE

RP+

XPK+

RPK+

XPC+

RPC+

Version

MF

MA

MC

MF

MA

MF

MA

MF

MA

Catalog page

24

38

32

44

50

64

68

74

81

min. i =

3

5.5

3

4

5.5

12

48

4

22

max. i =

100

55

100

10

220

1000

5500

20

55

Standard

≤3

≤1

≤4

≤3

≤1

≤4

≤ 1.3

≤4

≤ 1.3

Reduced

≤1

–

≤2

≤1

–

≤2

–

≤2

–

Smooth shaft

x

x

x

–

–

x

–

x

–

Shaft with key d)

x

–

x

–

–

x

–

x

–

Splined shaft (DIN 5480)

x

x

x

–

–

x

–

x

–

Blind hollow shaft

x

x

x

–

–

x

–

x

–

Hollow shaft interface

–

–

–

–

–

–

–

–

–

Keyed hollow shaft

–

–

–

–

–

–

–

–

–

Flanged hollow shaft

–

–

–

–

–

–

–

–

–

Ratio c)Max. torsional backlash[arcmin] c)XP+Output shape

Flange

–

–

–

x

x

–

x

–

x

System output

x

x

x

x

x

x

x

x

x

Output on both sides

–

–

–

–

–

–

–

–

–

Motor-mounted

x

x

x

x

x

x

x

x

x

Self-contained version b)

x

–

–

–

–

–

–

–

–

Flange with slotted holes

x

x

x

x

x

x

x

x

x

ATEX

–

–

–

–

–

–

–

–

–

x

x

x

x

x

x

x

x

x

–

–

–

–

–

–

–

–

–

x

–

x

x

x

–

–

–

–

Linear system (rack / pinion)

x

x

x

x

x

x

x

x

x

Servo actuator

x

–

–

x

x

–

–

–

–

Coupling

x

x

x

–

–

x

–

x

–

Shrink disc

x

x

x

–

–

x

–

x

–

Input type

Characteristica)Food-grade lubricationa) b)

Corrosion resistant a) b)
Optimized mass inertiaa)System solutions

Accessories(please refer to the product pages for further options)Power reduction: technical data available on request
Please contact WITTENSTEIN alpha
In relation to reference sizesd)Power reduction: Please use our sizing software cymex® for a detailed sizing – www.wittenstein-cymex.com
a)

b)
c)

88

Servo actuator overview

Product typeMax. torsional backlash[arcmin]c)

HIGH TORQUE

TPM+

TPM+
POWER

AVF

Customer
specificStandard

Standard

Standard

Standard

16

22

16

22

4

10

PAG

PHG

RPM+

Standard

Standard

Standard

min. i =16

16

VersionRatio c)DYNAMIC

PBG

TPM+

max. i =

100

100

100

220

91

220

100

25

Standard

≤5

≤3

≤4

≤1

≤3

≤1

≤3

≤ 10

Reduced

≤3

≤1

≤2

–

≤1

≤1

≤1

–

Output shape
Smooth shaft

x

–

x

–

–

–

–

x

Shaft with key d)

x

–

x

–

–

–

–

x

Splined shaft (DIN 5480)

x

–

x

–

–

–

–

–

Blind hollow shaft

–

–

–

–

–

–

–

–

Hollow shaft interface

–

–

–

–

–

–

–

–

Keyed hollow shaft

–

–

–

–

–

–

–

–

Flanged hollow shaft

–

–

–

–

–

–

–

–

Flange

–

x

–

x

x

x

x

–

System output

–

x

x

x

x

x

x

–

Output on both sides

–

–

–

–

–

–

–

–

Input type
Motor-mounted

–

–

–

–

–

–

–

–

Self-contained version

–

–

–

–

–

–

–

–

Flange with slotted holes

–

–

x

x

–

–

–

–

ATEX

–

–

–

–

–

–

–

–

Characteristic

a)

x

x

x

x

x

x

x

x

Corrosion resistant a) b)

–

–

–

–

x

x

x

x

Optimized mass Inertia a)

–

–

–

–

–

–

–

–

x

x

x

x

x

x

x

–

Food-grade lubricationa) b)

System solutions
Linear system (rack / pinion)

Accessories
Coupling

x

x

–

–

x

x

x

–

Shrink disc

x

–

x

–

–

–

–

–

Power cable, signal cable, hyprid cable

x

x

x

x

x

x

x

x

Product portfolio& company(please refer to the product pages for further options)Power reduction: technical data available on request
Please contact WITTENSTEIN alpha
In relation to reference sizesd)Power reduction: Please use our sizing software cymex® for a detailed sizing – www.wittenstein-cymex.com
a)

b)
c)

89

Overview of output interfaces
Rotative output interfaces
Smooth shaft· Friction contact torque transmission via a clamp connection(e.g. in connection with a coupling)· Simple connection of the gearbox to the application· Consistently high transmittable torques even with highly cyclical changing loads· Classic output interface for the shaft gears
in the alpha Advanced Line and alpha Premium Line
Shaft with key· Form fit torque transmission via the key in the cylindrical gearbox output1· Easy to assemble and disassemble· Cost-efficient solution for connecting the gearbox to the application· Form fit locking of the shaft against slipping· Danger of deflection with highly cyclical changing loads· Not suitable for applications with high requirements in terms of repeatability· Common output interface for the shaft gears in the alpha Basic Line and alpha Value Line
Splined shaft (DIN 5480)· Form fit torque transmission via the tooth flanks of the output shaft· Easy to assemble and disassemble· Consistently high transmittable torques even with highly cyclical changing loads· Requires little space· Higher demands on design and production· Used for connecting RMS pinions to the gearbox(see the alpha Linear Systems product catalog)
Flange output· Friction contact torque transmission by screwing
the application to the face of the gearbox output²· Maximum torsional rigidity and torque transmission
even with highly cyclical changing loads· Simple and space-saving mounting base
Blind hollow shaft 4· Friction contact torque transmission via a hollow-shaft-like interface
on the gearbox output for connecting the application to a shrink disc 3· Reduced space requirement due to elimination of connecting elements (e.g. couplings)

90

System output as the basis for RMW pinions (see alpha Linear Systems product catalog)· Cohesive connection of the output flange with a pinion· Highly flexible interface for connecting different pinion variants and geometries· Maximum linear rigidity through the direct connection of pinionswith a small reference pitch diameter· Maximum safety and reliability· Compact design
Flanged hollow shaft· Friction contact torque transmission by screwing the application
to the face of the gearbox output 2· Combination of flange output and hollow shaft for maximum use of
space for feeding through e.g. cable harnesses or a shaft· Maximum torsional rigidity and torque transmission even with highly cyclical changing loads· Simple and space-saving mounting base
Hollow shaft interface 4· Friction contact torque transmission via cylindrical shoulder
on the gearbox output for connecting the application to a shrink disc
· Hollow shaft for feeding through e.g. cable harnesses or a shaft· Requires little space· Complex mechanical calculation in the event of tilting moments or lateral forces
Keyed hollow shaft 4· Form fit torque transmission via the combination of the hollow shaft and a feather keyway 1· Hollow shaft for feeding through e.g. cable harnesses or a shaft· Easy to assemble and disassemble· Form fit safeguard of the shaft against slipping· Requires little space· Danger of deflection with highly cyclical changing loads· Not suitable for applications with high requirements in terms of repeatability

Product portfolio& company

Output on both sides· Version of the gearbox with a second, rear output· Use as input for an additional mounting base· No reduction in the permitted speeds and torques on both output sides, except in gearboxes
with additional planetary output stages (e.g. SPK+, TPK+); these gearboxes also have higher
speeds at the rear output.
· Reduced absorption of axial and lateral forces on the rear output

The cymex ® 5 sizing software performs standard calculations in this regard. Assistance from WITTENSTEIN is possible if required.
The reliability of the screws depends largely on the screws used, the screw tightening procedure, and the cleaning procedure for thescrews during assembly. Recommendations in this regard are included in the operating manual.
3)
For radial loads, a case-by-case check by WITTENSTEIN is recommended.
4)
To prevent overdetermination of the system, a torque support is recommended.
1)

2)

91

Overview of gearbox variants

XP

010

S

–

M

F

1

–

5

–

0

E

1

–

2

S

Characteristic:
F = Food grade lubrication
G = Grease
H=F ood-grade grease
K = Output SP+ compatible
R = Flange with slotted holes
S = Standard

Explanation of variants
deviating from the standard:

F = Food grade lubrication

K = Output SP+ compatible

These products are available with food-grade lubricationand can therefore be used in the food industry. Please notethat the torque ratings in the catalog are reduced by 20 %.

The XP+ gearboxes are available with an SP+ output
compatible housing (square). It is necessary to alsochoose the SP+ compatible output shaft in order to achieve
full output compatibility. The technical data is similar to
the SP+. Please contact WITTENSTEIN alpha for detailed
information.

G = Grease
This variant allows you to lubricate selected products withgrease instead of oil. Please note that the torque ratings in
the catalog are reduced by 20 %.
H = Food-grade grease
This variant allows you to lubricate selected productswith food-safe grease instead of oil. Please note that thetorque ratings in the catalog are reduced by 40 %.

92

R = Flange with slotted holes
This output type is designed for linear applications withrack and pinion or belt pulley. Integrated slotted holes
enable easy positioning of the pinion or simple tensioningof the belt.

R-flange with slots for XP+, XPK+ and XPC+ gearboxes
The R-flange has become indispensable in rack and pinion drive trains:
it is the benchmark for modularity and ease of installation. That’s why the R-flangeis also used in our XP+ family as both a coaxial and a right-angle version, with ahost of design options.

Your benefits at a glance
Easy mounting and positioning of the gearbox with a mounted
pinion in relation to the rack
Lower design costs

Premium Linear Systems with XP+ R

Potential saving because no additional design elements areneeded, e.g. intermediate platesMore design freedom due to higher compactness

Views

XP+ 020 R

Product portfolio& company

XP+ 030 R

XP+ 040 R

Special assembly washers for the slotted version
are included in the scope of delivery.

93

alpha Premium Linear Systems
A new dimension in performance

For a wide range of applications

With the Premium Linear System, the performance ofthe rack and pinion system enters a new dimension.
While others are still busy adapting existing solutions,
WITTENSTEIN alpha has stayed several steps ahead
by developing the new linear systems. The innovative
Premium Linear System is used in all applications where
the individual requirements far exceed what has previously
been possible. Compared to the industry standard, thevalues have been improved by 150 % on average.

Linear systems from WITTENSTEIN alpha are suitable for awide range of applications and industries. New standards
and advantages have been achieved in the following areas:· Smooth operation· Positioning accuracy· Feed force· Power density· Rigidity· Easy installation· Design options· Scalability

The alpha preferential linear system – The bestfrom each segment

Together with a comprehensive range of services, we
pledge to support you from the initial concept to thedesign, installation and commissioning phase. We will also
ensure a consistent supply of spare parts.

Our preferential linear systems in the premium segment arealways comprised of the perfect combination of gearbox,
pinion, rack and lubrication system. The systems havebeen optimized to achieve the required feed force, feed
speed, stiffness and degree of utilization of the individualcomponents.

Your benefits at a glance

For further information,refer to our alpha Linear
Systems catalog and our
website:www.wittenstein-alpha.
com/linear-systems

Perfectly matched components
M aximum efficiency and power densityxceptional linear system rigidity for even greaterEdynamics and precision
 imple mounting and maximum integration in the driveStrain
 vailable in different sizes, power categories andAsegments
Consultation and quality – everything from a single
source!

94

Simply scan the QR codeusing your smartphone
to see INIRA® in action.

INIRA®: The revolution in rack assembly

INIRA® combines our existing innovative concepts for the simple, safe andefficient installation of racks. INIRA® clamping, INIRA® adjusting and INIRA®
pinning have already made the assembly process much faster, more accurate
and more ergonomic. Available for the Advanced and Premium Linear Systems.

INIRA® clamping: Simply faster and more ergonomic
Previously, enormous effort was required to clamp racks to themachine bed using screw clamps. INIRA® clamping integrates
the clamping device in the rack. The rack incorporates amounting sleeve which is guided over the head of the fastening
screw to ensure quick and ergonomic clamping.

INIRA® pinning: Simply better and more efficient

The previous method used for pinning racks was extremely
time-consuming. Precision bores have to be drilled andthe chips generated must be carefully removed from theassembly. INIRA® pinning now offers a completely new solution
for the chipless pinning of racks, which reduces installation
times considerably (time spent on each rack ~ 1 min).

INIRA® adjusting: Simply safer and more precise
In combination with INIRA® clamping, INIRA® adjusting is theideal solution for perfectly adjusting the transition between
two rack segments. The innovative setting tool can adjust
the transition extremely reliably and precisely, accurate to themicrometer.

INIRA® adjusting

INIRA® pinning

Product portfolio& company

INIRA® clamping95

cynapse® – It´s new. It´s connective. The smart feature.
Cybertronic drive systems that can independently acquire and communicate information are an essential prerequisite for
IIoT. WITTENSTEIN alpha is the first component manufacturer to offer smart gearboxes as standard – gearboxes withcynapse ®. They have an integrated sensor module that makes Industry 4.0 connectivity possible.

cynapse ® – how it works
cynapse® ensures the gearbox can be easily integrated
into the digital world. The cynapse® feature is integrated
into the existing installation space and is connected via
an IO-Link interface. As a result, measured data such as
the gearbox’s temperature, vibration, operating time,
acceleration, and product-specific information canbe accessed.

cynapse® wins customers over with:· Sensor module integrated into theinstallation space· Simple connection by IO-Link interface· Gearbox threshold monitoring· Quick product identification thanks
to digital name plate

cynapse®
play IIoT

IPC,
Gateway,
Cloud

PLC

Smart
Services

Connectivity 4.0
Servo drive

Servo drive

Servo drive

IO-Link
master

Motor

Motor

Motor

Gearbox withcynapse ®

Gearbox withcynapse ®

Gearbox withcynapse ®

96

cynapse ® generates an electronic “fingerprint” of yourspecific requirements for performance, efficiency,transparency, and availability. The smart gearbox can
identify and measure parameters directly from theprocess and application environment and pass themon to higher-level systems. Gearboxes with cynapse ®
can also exchange information with the applications
on IIoT platforms and, thanks to their integrated logic
functions, can perform intelligent monitoring tasks.

Smart Services – the perfect complement
The Smart Services expand the functional scope of the cynapse ® feature. The basic functions comprise data processing,visualization, and analysis. The specific expertise, which WITTENSTEIN has gathered over more than 40 years of developing
low-backlash planetary gearboxes, is used in combination with the operating data to establish and display the status of the gearbox
in the Smart Services.

Your benefits at a glancecynapse Monitor
Visualizationof the operating data®

Simple and convenient integration
Determination and monitoring of critical threshold values
Early identification of problematic statuses
Avoidance of machine downtimes and associated costs
Transparency for drive axis

cynapse ® Monitor

cynapse ® Monitor builds upon the Smart Service cynapse ® Connect and enables straightforward
evaluation and visualization of operating data. Since manufacturers and operators do not have todevelop their own solutions, development requirements are massively reduced. In addition, the dataof the cynapse ® Monitor service can be used to monitor threshold values of selected parameters.
Deviations and critical states in the behavior of gearboxes or in the relevant process can therefore be
identified at an early stage.

cynapse ® Analyze

cynapse® Analyze is an ever-growing portfolio of smart features. The focus of this service is the detectionof anomalies or wear. The Anomaly-Check, for example, detects changes in the belt tension in packaging
machine drives. The Health Index displays the gearbox condition simply and intuitively by means of a traffic
light, which can be used to establish the recommended course of action. These features help to prevent
unplanned downtimes as well as the associated breakdown and repair costs. Machine operators can thus
take the necessary action before any damage occurs.
Product portfolio& company

cynapse ® Connect

cynapse ® Connect enables integration and routing of data, which is a fundamental prerequisite forcondition monitoring. The Smart Service makes the recorded data available in a structured format. It
can obtain this data from various source systems via IO-Link or OPC UA and utilizes it for digital
services from WITTENSTEIN. cynapse ® Connect thus greatly simplifies the integration of smart
gearboxes into the relevant machine infrastructure.

cynapse ® Monitor

cynapse ® Connect97Precision meets motion = premo® by WITTENSTEIN alphapremo ® is a powerful servo actuator platform thatcombines absolute precision with perfect movement. The
central idea behind this first fully scalable servo actuator
platform is uncompromising flexibility from the viewpointof the user. Motors and gearboxes with application-related
graduated performance characteristics can be configured
modularly to individual servo actuators. The result is ahighly versatile modular system with customizable power,
designed for a wide variety of applications. The core of theservo actuator is a torsionally rigid precision gearbox withlow backlash and excellent torque density combined withthe equally powerful, permanent magnet servo motor witha split winding that guarantees low cogging and minimal
velocity ripple.

premo ® – clearly superior in performance· Higher machine performance thanks to higher acceleration
torque·High torque density combined with a compact design
allow for the realization of higher performance machineswith significant space saving·
Improved connectivity to next generation controllers
from leading system providers through the use of digital
feedback (EnDat 2.2, DSL, HIPERFACE DSL®, DRIVE-CLiQ)· Compatibility for high bus voltages up to 750 V DC·Reduced wiring requirement through single-connector
technology· Improved reliability and safety through the use of more
powerful brakes and SIL 2 encoders

premo ® XP Linepremo ® TP Linepremo ® SP Line

Added value

Acceleration
torqueMax. power

Product highlights

50 %
100 %

 ptimized power density for greater
Oenergy efficiency and productivity

150 %
200 %

 lexible mechanical and electrical interfacesFfor high scalability

250 %Installation length ariety of options for individuallyV
upgrading the basic configuration

Flexibility

premo® TP Line,size 3

TPM+ 025

premo ® application examples

Handling portal
premo ® SP Line

98

Fill and Seal machine
premo ® TP Line

Milling cutter for a machining center
premo ® XP Line

Typical fields of application and industry solutions· Delta robot (axes 1–3, swivel axis)· Handling portal (Z-axis, swivel / rotating axis)· Machine tool reaming (rotating axes A–C, tool changer)· Fill and Seal Machine (incl. jaw stroke, sealing jaw, blade)· Folding carton packaging (incl. assembly / folding, filling valve)· Plastic thermoform (tool axis)

All external surfaces withsmooth, hygienic design
Quick-fastening connector
for fast installation

Robust bearing withlong service life

Reduced wiring requirement through single-cabletechnology with digital
encoder

Conical cover
without screws

Product portfolio& company

Flexible gearbox interface
suitable for any application

Brake with enhanced
holding torque99

Galaxie® drive system – Performance in a new dimension

Next Technology Drive
This award-winning innovation by WITTENSTEIN surpasses all
previous drives in terms of torsional backlash, torque density,
stiffness and compactness. The innovative core of the Galaxie ®
is that the drive makes almost full surface contact during powertransmission, which produces a defined torque density as well
as exceptional torsional rigidity and zero backlash – even at thezero crossing.

Schematic diagram
Polygon (input)

Product highlights
Segmented
roller bearing

High torsional rigidity
No backlash – even at the zero crossing
Hydrodynamic surface contact

Individual tooth

Maximum torque density
High robustness
Hollow shaft

Tooth carrier(output)

Ring gear(fixed point)

Complete system under one roof

Options:· Integrated holding brake· Different feedback systems· Additional encoder system at the input

100

Find out more about
the Galaxie ® by simply
scanning the QR codeusing your smartphone.

Extremely compact
Optimized mass moments
of inertia

Integrated water coolingMax. torsional rigidity
Galaxie ® gearbox

Product portfolio& company

Synchronous
servo motor

Galaxie ® mounted on a milling cutter manufactured by Maka
Systems GmbH for processing carbon composite materials –High Speed for maximum component quality

Galaxie ® in a spline rolling machine – faster processing
speeds increase productivity by 40 %101

Accessories – smart additions for intelligent performance
Gearboxes, accessories and consulting from asingle source

Use the combination of gearbox and accessories in acomplete package to streamline your internal processes.

Gearbox process costs

ss o

r bo

ce

x

Ac

WITTENSTEIN alphadrive solutions:· Perfectly matched· From a single source· Overall responsibility

Prozesskosten Getriebe
Two suppliers
Prozesskosten Getriebe
Zwei Lieferanten
100 %r i esGe a

Optimization of your added value chain

Zwei Lieferanten
Komplettlieferung
WITTENSTEIN alphaKomplettlieferung
WITTENSTEIN alphaAccessory process costs
Prozesskosten Zubehör
Prozesskosten Zubehör
100 %

100 %
100 %
Complete delivery by WITTENSTEIN alpha
Bis zu 80 %Prozesskostenersparnis
Up to 80 % Bis zu 80 %Process cost savings
Prozesskostenersparnis

 Die erzielte Prozesskostenersparnis
amortisiert den Warenwert der Zubehörkomponente Die erzielte Prozesskostenersparnis
The savingsin installationand process costs
amortisiert
den Warenwert
der Zubehörkomponente
more than offsets the value of the accessories.

C onsultatio n

Quick selection
PRODUCTS

COUPLING

SHRINK DISCPRODUCTS

COUPLING

SHRINK DISC
SD

Advanced Line

Basic LineCP / CPK

ELC

SP+ / SPK+ / SPC+BC2

CPS / CPSK

ELC

TP+ / TPK+ / TPC+

BCT

TP+ / TPK+ HIGHTORQUE

BCT

CVH
CVS

SD
ELC

HG+

SD

SK+
Value Line

BC2

TK+

BCT

NP / NPK

ELC

SC+

BC2

NPL / NPLK

ELC

VH+

NPS / NPSK

ELC

VS+

NPT / NPTK / NTP

ELT

VT+

BCT

NPR / NPRK

ELC

premo® SP LineBC2

premo® TP Line

BCT

NVH
NVS

SD
ELC

SD
BC3

+

TPM DYNAMIC
TPM+ HIGH TORQUE
TPM+ POWER

BCT

Premium Line

102

SD

XP+ / XPK+ / XPC+

BC3

premo® XP Line

BC3

Couplings
Couplings are used for compensating misalignment during assembly andmaterial-related heat expansion

Compensation for shaft misalignment

Axial

LateralAngular

Metal bellows coupling

Elastomer coupling

Torque limiter· Compensation for shaft
misalignment· Completely backlash free· Corrosion resistant version available
as an option (BC2, BC3, BCT)
· High torsional rigidity· Compensation for shaft misalignment· Completely backlash free· Selectable torsional rigidity / damping· Compact design· E xtremely simple installation (plug-in)· Compensation for shaft misalignment· Completely backlash free·Precise, preset overload protection(switch-off in 1 – 3 ms)· Precise repeat accuracy· Just one protection element per axis

Preferred coupling seriesalpha Advanced

BC2alpha Value
ELC

alpha Basic

Please note that the coupling load is based on the torque that the
gearbox can transmit and not the torque in your application. We
recommend using our cymex ® 5 design software to create a moredetailed design. (www.wittenstein-cymex.com)
For more coupling types, please visit
www.wittenstein-alpha.com

103

Product portfolio& company

alpha Premium

Preferred series are defined for the relevant gearbox segments
to make selection easier. Preferred couplings are defined based
BC3
on the maximum torque that the gearbox can transmit. Standard
industrial conditions for the number of cycles (1000/ h) and ambient
temperature were adopted.

Shrink disks
Shrink disks are frictional hub / shaft connections. Together with our hollow shaft
or mounted shaft gearboxes for mounting directly on load shafts, machines can be
designed to take up a minimal installation space.
The benefits:· Simple mounting and removal· Quick selection, easy and convenient∙ Optional: corrosion resistant version

Preferred shrink disk series
To view a wide range of nickel-plated, stainless steel andother shrink disks as well as all the relevant technical data
and dimensions, visit our homepage
www.wittenstein-alpha.com

104

Quick shrink disc selection
VersionGearbox

HG+ / SP+ / SPC+ 060

Standard

Nickel-plated

Stainless steel

Ordering code

SD 018x044 S2

SD 018x044 N2

SD 018x044 E2Material number

20000744

20048496

20048491

100

51

51

Ordering code

SD 024x050 S2

SD 024x050 N2

SD 024x050 E2Material number

20001389

20047957

20043198

250

136

136

Ordering code

SD 036x072 S2

SD 036x072 N2

SD 036x072 E2Material number

20001391

20048497

20035055

650

575

450

Ordering code

SD 050x090 S2

SD 050x090 N2

SD 050x090 E2Material number

20001394

20048498

20047937

T2Max [Nm]HG+ / SP+ /SPK+ / SPC+ 075

T2Max [Nm]HG+ / SP+ /SPK+ / SPC+ 100

T2Max [Nm]HG+ / SP+ /SPK+ / SPC+140

T2Max [Nm]HG+ / SP+ /SPK+ / SPC+180

1320

1015

770

Ordering code

SD 068x115 S2

SD 068x115 N2

SD 068x115 E2Material number

20001396

20048499

20048492

T2Max [Nm]VH+/ NVH / CVH 040

2450

1820

1500

Ordering code

SD 024x050 S2

SD 024x050 N2

SD 024x050 E2Material number

20001389

20047957

20043198

250

136

136

Ordering code

SD 030x060 S2V

SD 030x060 N2

SD 030x060 E2Material number

20020687

20047934

20047885

550

375

230

Ordering code

SD 036x072 S2V

SD 036x072 N2V

SD 036x072 E2Material number

20020688

20047530

20035055

640

560

450

Ordering code

SD 050x090 S2V

SD 050x090 N2V

SD 050x090 E2Material number

20020689

20047935

20047937

1400

950

900

Ordering code

SD 062x110 S2V

SD 062x110 N2

SD 062x110 E2Material number

20020690

20047927

20047860

2300

1540

1000

T2Max [Nm]VH+/ NVH / CVH 050

T2Max [Nm]VH+/ NVH / CVH 063

T2Max [Nm]+

VH 080T2Max [Nm]+

VH 100

Geometry

T2Max [Nm]

d

D

A

H*

H2*

J [kgcm²]

18

44

30

15

19

0.252

24

50

36

18

22

0.729

36

72

52

22

27.5

3.94

50

90

68

26

31.5

11.1

68

115

86

29

34.5

31.1

24

50

36

18

22

0.729

30

60

44

20

24

1.82

36

72

52

22

27.5

3.94

50

90

68

26

31.5

11.1

62

110

80

29

34.5

27

*Applicable to the unclamped condition. ** Maximum torque without axial forces. Shrink discs suitable for XP+ gearboxes upon request
One shrink disk per gearhead is sufficient.
Refer to the operating manual for information on correct shrink disc installation and additional
cleaning instructions, particularly for stainless steel shrink disks.
The instructions are enclosed with the order.

Product portfolio& company

Mounting / operating manual at www.wittenstein-alpha.de/en/

Recommendation for the load shaft:Tolerance h6
Surface roughness ≤ Rz 16
Minimum yield strength (standard) Rp 0.2 ≥ 385 N/mm2
Minimum yield strength (nickel-plated) Rp 0.2 ≥ 260 N/mm2
Minimum yield strength (stainless steel) Rp 0.2 ≥ 260 N/mm2
The shrink disc is not included in the scope of delivery of thegearhead. Therefore, it must be ordered separately.

105

Support at each interaction stage
With the WITTENSTEIN alpha service concept, we are also setting new
standards in the field of customer support.

Global presence

Speed counts

Our global consultation network will help you overcome yourcomplex challenges through our extensive experience, avariety of design tools and individual engineering services.

Our speedline ® team guarantees fast response times in
the area of logistics. We provide on-site support during the
installation and commissioning of mechanical systems to give
you a sustained competitive edge.

Personal consultation
Our highly qualified and committed expert personnel willaccompany you throughout the entire product lifecycle around the clock. When it comes to customer support, you
can count on us!

DesignConsultation
CAD POINT
cymex® selectSizing software cymex®
Engineering

Installation
speedline ® delivery
Installation on-site
Operating & installation instructions
Pick-up & return service

We are happy to advise you:
24 h service hotline:+49 7931 493-12900

No matter where you need us:
A comprehensive sales and service network
provides quick availability and competent support
worldwide.

106

24 h service hotline
Maintenance and inspection
Repaircymex® statistics
Modernization

Training
Product training
Sizing training
Installation training
Service training

Product portfolio& company

Maintenance107

Support at each interaction stage
DesignWhatever your requirements are: we offer the right design
methodology. Use the CAD POINT to gain easy accessto CAD files, cymex ® select for creating simple designs,

cymex® 5 for precise dimensioning and our engineering
service for individual solutions.

Consultation

CAD POINT· Personal contact on-site· Professional application calculations and drive
design create the best solutions· 3D data of selected solution· Online comparison with motor geometry· Transparent and simple selectionof required components

Engineering
Catalog gearboxes:· Advanced software tools for accurate calculation,
simulation and analysis of the drive train· Optimization of your productivity and reduction
in development costs
Special gearboxes:· Gearing design and development· Development and production of special gearboxes· Send all inquiries to: sondergetriebe@wittenstein.de108

cymex® select· Efficient and customizable productselection in seconds· Top three product recommendations
for your requirements· Automatic geometry adjustment

cymex® 5 sizing software· Dimensioning, design and evaluationof the entire drive train· Reliable, efficient design· Optimization of drive system

Installation
All delivered products are perfectly matched to yourapplication environment and fully operational right away.

Our service experts support you in the installationand commissioning of complex mechatronic systems,
guaranteeing maximum availability of your plant.

speedline ® delivery

WITTENSTEIN Service Portal

Tel. +49 7931 493-10444· Delivery of standard series in 24 or 48 hours ex works*· Outstanding flexibility for fast deliveries at short notice· Instant Access to Product Information· Quick Installation and Commissioning
for example Tutorial-Videos

Installation on-site

Pick-up and return service· Professional installation· Optimal integration of the system in your application· Explanation of the drive function· Cost savings through minimization of downtimes· Professional logistics organization· Reduction of transport risks throughcustomized, direct pick-up and delivery

Operating and installation instructions

Product portfolio& company· Detailed explanations of how to use the product· Motor installation videos· Assembly videos on rack and pinion system* Non-binding delivery time depending on part availability.

109

Support at each interaction stage
Maintenance
WITTENSTEIN alpha guarantees fast repairs of the highest
quality and precision – with short throughput times
and intensive support. In addition, we will provide youwith information about various measurements, material

analyses and condition monitoring inspections. You canrely on short response times, unbureaucratic processing
and individual support.

24 h service hotline

cymex® statistics

Tel. +49 7931 493-12900· Available round the clock· Personal, prompt service for resolving time-critical
maintenance issues· Systematic field data acquisition· Reliability calculations (MTBF)· Customized evaluations

Maintenance and inspection

WITTENSTEIN Service Portal· Documentation regarding condition and expected
service life
· Maintaining required state· Customized maintenance schedules· Fast Processing of Replacement Products· The Right Contact for Queries· Tailor-Made Maintenance Services

RepairModernization· Restoring to required state· Short throughput times· Immediate response in time-critical situations· Professional retrofitting· Reliable compatibility testing of existing solutions

110Training
Discover how our products function and how they can add
value to your application. We offer you training courses
at our premises or on-site at your plant. Benefit frompractice-oriented learning methods and a highly skilled
team of trainers.

Installation training

Greater knowledge enables greater achievement. We will
be pleased to share our expert knowledge with you: Profit
from our many years of experience and learn more about the
product portfolio of WITTENSTEIN alpha.

We offer you individual training courses on-site for yoursystem application of selected linear axes as well as
professional installation.

Sizing training

Service training

Become a design expert! We will provide you withtraining courses on our design software, adapted to yourrequirements. Whether for beginners or experts, foroccasional or regular users – we adapt our training course
to your wishes and requirements.

Participation in a service training course is a prerequisite
for sourcing spare parts at the parts list level. We offer
you training courses at our premises or on-site at yourplant. Moreover, we regularly host maintenance workshops
at which the participants are instructed in safe handlingduring mounting of the motor to the gearbox as well as theindependent replacement of wearing parts and gearbox
assemblies.

Product portfolio& company

Product training

111

The WITTENSTEIN group – The company and its
fields of businessWith approximately 2,800 employees worldwide, the WITTENSTEIN
group stands for innovation, precision and excellence in theworld of mechatronic drive technology, both nationally and internationally. The group is active in seven innovative fields ofbusiness. Furthermore, WITTENSTEIN group is represented bysome 60 subsidiaries in around 40 countries in all important
technology and sales markets worldwide.

Our fields of expertise
We provide know-how for a host of different sectors:· Machine and plant construction· Software development· Aerospace· Automotive & E-mobility· Energy· Oil & Gas Exploration and Production· Medical technology· Measurement and testing technology· Nanotechnology· Simulation

112

The WITTENSTEIN Groupa l ph a

WITTENSTEIN alpha GmbH
High-precision servo drives and linear systems

c yb e r mo t or

WITTENSTEIN cyber motor GmbH
Highly dynamic servo motors and drive electronics

galaxie

WITTENSTEIN galaxie GmbH
Superior gearboxes and drive systems

mo tio n co ntro l

WITTENSTEIN motion control GmbH
Drive systems for the most extreme environmental requirements

Product portfolio& company

attocube systems AG
Nanoprecision drive and measurement technology solutions

baramundi software GmbH
Secure management of the IT infrastructure in offices and production

WITTENSTEIN – one with the future113

alpha Premium Line – Gearbox design
We recommend using cymex ® 5 sizing software to dimension thecomplete drive train in detail.

cymex® 5– Calculate on the Best· Detailed calculation of complete drive
trains· Precise simulation of motion and load
variables· Downloadable software
for complex designs
www.wittenstein-cymex.com

Operating mode:
In order to assess the application in detail. a distinction must be made between two operating modes.

1. Cyclic operation S5:· Number of cycles ≤ 1000 / hour
· Duty cycle < 60 % and < 20 minutes

2. Continuous operation S1:· Duty cycle ≥ 60 % or ≥ 20 minutes

Recommended gearbox model:Standard / HIGH TORQUE version

Recommended gearbox model:
HIGH SPEED version

Max. torque T2α:T2α represents the maximum torque transmitted by the gearbox. Once the number of cycles and the shock factor
have been determined, the maximum acceleration torque can be calculated at the output (T2b, fs). The maximum
torque T2α must be reduced in line with the relevant output shaft revolutions (fα).
The calculated torque T2b, fs must not exceed the maximum torque T2α of the gearboxes.

T2

TORQUE

T2a

OUTPUT SHAFT REVOLUTION

fα1

Torque in line with the relevant output shaft revolution

114

fα2

Max. tilting torque M2kmax:
The maximum tilting moment M2kmax can be calculated using the following formula:
Example with output shaft and flange:

M2kmax =F2aMax · IFa + F2qMax · (IFq + z 2) a)W b)a) l Fa, lFq, z 2 in mmb) W = 1000 (metric)

One prerequisite of the calculation is that the axial force is applied centrally
and does not exceed 37 % in relation to the radial force.

XP+
z2

010

020

030

040

050

[mm]

75.3

91.5

115

101.2

128.4

[in]

2.96

3.60

4.53

3.98

5.06

RP+
z2

030

040

050

060

080

[mm]

93.5

106.1

141.9

181.9

195.6

[in]

3.68

4.18

5.59

7.16

7.70

Drive options:

Optimized mass inertia clamping hub –For highly dynamic applications

Clamping hub with keyed socket –the form fit connection for even thehighest safety requirements

115

Information

Clamping hub with socket (standard)Glossary – the alphabet
Acceleration torque (T2B)

Example with output shaft and flange:

The acceleration torque T2B is the torquethat the gearbox toothing can permanently transmit. To calculate the acceleration torque, ar ➞ coefficient of impact
which is appropriate for the applicationmust also be taken into account.

Clamping hub (couplings)

2q
2q

2q

Adapter plate
WITTENSTEIN alpha uses a system ofstandardized adapter plates for connecting
the motor and gearbox. This makes it assimple as possible to attach motors fromany manufacturer to WITTENSTEIN alpha
gearboxes.

Axial misalignment

Angle of rotation

Counter-force of the coupling in theevent of axial misalignment [N/mm]. Thisadditional force should be taken into
consideration in the sizing of the drive
train and bearings.

Angle by which the connection elementof the coupling rotates under the torqueload. The admissible angle of rotation for
torsionally rigid couplings is < 0.05° andfor vibration-damping couplings < 5°.

Angular minuteA degree is subdivided into 60 angularminutes (= 60 arcmin = 60‘).
Example:If the backlash is jt = 1 arcmin, the output
may rotate by 1/60°. The impacts on theapplication are determined by the arc length:b = 2 · π · r · α° / 360°.
Example:A pinion with a radius r = 50 mm mounted
on a gearbox with a backlash of jt = 3
arcmin can be rotated by b = 0.04 mm.

Length variation along the longitudinal axes of the drive and output shaft.
Generally caused by thermal expansion.

Axial spring rigidity (Ca)

Backlash-free
Changes in the rotational speed, direction of rotation or torque do not cause
any backlash and thus no shocks in the
coupling. However, it should be notedthat an ➞ angle of rotation still occurs.

Bushing
If the diameter of the motor shaft issmaller than the ➞ clamping hub, abushing is used to compensate for thedifference in diameter. A minimum wall
thickness of 1 mm and a motor shaft
diameter of 2 mm difference are required.

Angular misalignment

Clamping hub
Motor shaft

Angular misalignment of drive and output shaft. In most cases due to assembly.
Causes an increased strain on the coupling.

116

Clamping hub (gearbox)
The clamping hub ensures a friction contact connection between the motor shaft
and gearbox. If the diameter of the motor
shaft is smaller than the diameter of theclamping hub, a ➞ bushing is used as aconnection piece.
For gearboxes in the alpha Advanced Lineand the alpha Premium Line, a form fit
connection via a key is also possible.

Connection between the clamping hub and the metal bellows
For metal bellows couplings which transmit torques of up to 500 Nm, the stainlesssteel bellow is bonded onto the clamping
hub. In the event of higher torques, theconnection is welded.

Continuous operation (S1)
In continuous operation, it is particularly
important to ensure that the maximum
gearbox temperature is maintained (seetemperature behavior). For optimum drive
behavior in continuous operation, we recommend our HIGH SPEED gearbox model.

Cyclic operation (S5)Axial force (F2AMax)
An axial force on a gearbox runs parallel
to its output shaft or perpendicular to its
output flange. Under certain circumstances, it acts offset from the axis with a leverarm y 2 In this case, it also creates a bending moment. If the axial force exceeds
the permissible catalog values (max.
axial force F2AMax), an additional component (e.g. axial bearing) must be provided
to absorb these forces.

The clamping hub ensures a friction
contact connection between the
coupling and the gearbox shaft as wellas with the application. Clamping hubs
are available in all motor shaft diameters;
therefore, a bushing as connection pieceis not required and also not recommended.
Optionally, a form fit connection via a key
is also possible.

Bushing

CAD POINT
Performance data, dimension sheets and
CAD data for all gearboxes can be foundonline in our CAD POINT, including clear
documentation of the selection.
(www.wittenstein-cad-point.com)

The cyclic operation is defined via the➞ duty cycle If the duty cycle is lessthan 60% and shorter than 20 minutes, it
qualifies as cyclic operation (➞ operating
modes).

cymex ®
cymex ® is the calculation software developed by our company for dimensioning
complete drive trains. The software
enables the precise simulation of motion
and load variables. The software is available to download from our website(www.wittenstein-cymex.de). We canalso provide training to enable you tomake full use of all the possibilities
provided by the software.

Efficiency (η)

HIGH SPEED (MC)The efficiency [%] η is the ratio of output
power to input power. Power lost throughfriction reduces efficiency to less than 1
or 100%.

The HIGH SPEED version of our gearbox
has been specifically developed for
applications in continuous operation athigh input speeds. It is used, for example,
in the printing and the packaging industry.

η = Poff  / Pon = (Pon – Ploss) / Pon

HIGH TORQUE (MA)WITTENSTEIN alpha gearboxes are alsoavailable in a HIGH TORQUE version.
These gearboxes are particularly suitable
for applications requiring extremely hightorques and maximum rigidity.

Degrees of protection (IP)Protection against the
ingress of dust (dustproofness)

Protection against
water jets

Disengagement torque (TDis)
Adjustable torque of torque limiters withwhich the coupling separates the driveand output side of the system.

Duty cycle (DC)The cycle determines the duty cycle(DC). The times for acceleration (tb), constant travel if applicable (tc) and deceleration (td) ombined yield the duty cyclein minutes.
The duty cycle is expressed as a percentage with inclusion of the dwell time te.
DC [%] =tb + tc + td
tb + tc + td + te

· 100

Motion duration
Cycle timeDC [min] = tb + tc + td

Dynamic torsional rigidity (CTdyn)
Torsional rigidity with T N

WITTENSTEIN alpha always indicates theefficiency of a gearbox during operation
at full load. If the input power or torque islower, the efficiency rating is also lower
due to the constant no-load torque. Power
losses do not increase as a result. A lower
efficiency is also to be expected at highspeeds (see figure).

The hysteresis is measured to determine
the torsional rigidity of a gearbox. The
result of this measurement is known as
the hysteresis curve.
ϕ [arcmin]50%-T [Nm]Ex symbol

100%
T [Nm]

Emergency stop torque (T2Emer)
The emergency stop torque T2Emer is the
maximum permissible torque at the gearbox output. It must not be reached morethan 1000 times during the service life of
the gearbox. It must never be exceeded!
The following cases in particular should
be checked: controlled emergency stop,
power failure, brake application, and crash.

ϕT

Test torque− ϕ [arcmin]

If the input shaft is locked, the gearbox
is continuously loaded and relieved at
the output in both directions of rotation up to a defined torque. The angle ofrotation is plotted against the torque.
This yields a closed curve from which the➞ backlash and ➞ torsional rigidity
can be calculated.

Devices bearing the Ex symbol comply
with EU Directive 94 / 9 / EC (ATEX) andare approved for use in defined explosionhazardous zones.
Detailed information on the explosion
group and category, as well as further
information on the respective gearbox, isavailable upon request.

Jerk (j)Food-grade lubrication (F)The maximum lateral force F2QMax [N] iis theforce component that acts perpendicular
to the output shaft or parallel to the output
flange. It acts perpendicular to the ➞ axial
force and can have an axial distance x2 tothe shaft shoulder or to the shaft flange thatacts as a lever arm. The lateral force createsa side load (also see ➞ axial force).

These products are designed with foodgrade lubrication and can therefore beused in the food industry. It is important
to note the reduction in torque comparedto the standard. (V-Drive excluded). See
cymex® 5 or the CAD POINT for the exact
torques.

The jerk is the derivative of the acceleration
with respect to time, that is, the change inacceleration in a unit of time. It is referred toas a shock if the acceleration curve shows ajump, i.e. the jerk is infinitely large.

Lateral force (F2QMax)➞ Refer to this term for further details.
117

Information

IP65

Example:Hysteresis curve

Backlash (defined)

The various degrees of protection are
defined in DIN EN 60529 “Degrees ofprotection offered by enclosures (IP code)”.
The IP degree of protection (International
Protection) is represented by two digits. The
first digit indicates the protection against
the ingress of impurities and the second is
the protection against the ingress of water.

∇

The cymex ® select quick layout toolfrom WITTENSTEIN alpha allows for
efficient and innovative product selection inseconds and is available online.
You get suitable recommendations for yourapplication and your motor in no time basedon technical and economic suitability.
(cymex-select.wittenstein-group.com)∇

cymex ® selectGlossary – the alphabet
Lateral misalignment

Maximum torque (T2α)

Parallel misalignment of the drive andoutput shaft. Causes an additional strain
on the bearings and other componentsof the drive train.

T 2α represents the maximum torquethat can be transmitted by the gearbox.
Depending on application-specific boundary
conditions and the precise evaluation of the
motion profile, the gearbox may be operated with a maximum torque T2b,fs above thespecified maximum acceleration torque T2B(See diagram 3.) For detailed sizing, pleaseuse cymex cymex©
T2alpha ≥T2b,fs ≥ T2B

Lateral spring rigidity (C l )Counter-force of the coupling in theevent of lateral misalignment [N/mm].
This additional force should be taken
into consideration in the sizing of thedrive train and bearings.

No-load running torque (T012)

Load factor (fs) (gearbox)
The maximum admissible acceleration
torque (T2B) indicated in the catalog incyclic operation applies to less than 1000
cycles/h. Greater numbers of cycles inconnection with shorter acceleration
times can lead to oscillations in the drive
train. The resulting excessive torqueincreases are taken into consideration
with the load factor fs berücksichtigt.
WITTENSTEIN alpha suggests taking
these unknown overloads into accountusing the following curve.
This determined value is multiplied by theactual acceleration torque T2b before it iscompared with the maximum permissible
acceleration torque T2B.
(T2b · fs = T2b, fs < T2B)
The following applies to gearboxes:

The no-load running torque T012 is the torque which must be applied to a gearbox
in order to overcome the internal friction;
it is therefore considered lost torque. The
WITTENSTEIN alpha catalog values are
determined at a speed n1 = 3.000 min1
and an ambient temperature of 20°C.
T012:

0

no load1➝ 2
from input side toward
output side

No-load running torques decrease during
operation.

NSF
Lubricants certified as grade H1 by the
NSF (National Sanitation Foundation) canbe used in the food sector where occasional unavoidable contact with food cannot be excluded.

Shock factor

Operating modes (continuous
operation S1 and cyclic operation S5)

Number of cycles per hour

The following applies to couplings:
Number of cycles Metal bellow couplings
Z h [1/h]
and torque limiters

Elastomer couplings< 10001.0

1.0< 20001.1

1.2< 30001.2

1.4< 40001.8

1.8> 40002.0

2.0

Mass moment of inertia (J)The mass moment of inertia J [kg/cm²]
is a measurement of the effort appliedby an object to maintain its momentary
condition (at rest or moving).

118

Gearboxes are selected depending onwhether the motion profile is characterized by frequent acceleration and deceleration phases in ➞ cyclic operation (S5)as well as dwell times, or whether it isdesigned for ➞ continuous operation(S1), i.e. with long phases of constant motion.

Operating noise (LPA )The gear ratio and speed influence theoperating noise. As a general rule,the higher the speed, the higher theoperating noise and the higher the gear
ratio, the lower the operating noise. Our
catalog specifications refer to a reference gear ratio and speed. The reference
speed is n1 = 3000 rpm or n1 = 2000 rpm.
depending on the size of the gearbox Ratio-specific values can be found in cymex®
- www.wittenstein-cymex.com

Output shaft revolution (fα)

The factor fα determines the number ofservice life cycles for the required service
life of the gearbox. It describes the numberof revolutions at the output to assess thepermissible torque at the output.

Positioning accuracy
The positioning accuracy is determinedby the angular deviation from the setpoint
and is the sum of the load-dependent➞ (torsional rigidity and torsional backlash) and kinematic ➞ (synchronization)
angles of rotation that occur simultaneously
in practice.

Quality control
All Premium and Advanced gearboxes at
WITTENSTEIN alpha are subjected to an
outgoing inspection before they leave thefactory. This ensures that every gearbox isdelivered within specification.

Ratio (i)The ratio i indicates the factor by which
the gearbox transforms the three relevant
parameters of motion (speed, torque andmass moment of inertia).
The factor is a result of the geometry of the
toothing elements (example.: i = 10).
n1 = 3000 min-1:i

T2 = 200 Nm

T1 = 20 Nm·in2 = 300 min-1

J1 = 0,10 kgm2

J2 = 10 kgm2
(Application)

The ratio of mass moment of inertia λ is theratio of external inertia (application side) tointernal inertia (motor and gearbox side). It
is an important parameter determining thecontrollability of an application. Accurate
control of dynamic processes becomes
more difficult with increased differing mass
moments of inertia and as λ becomes
greater. WITTENSTEIN alpha recommends
that a guideline value of λ < 5 is maintained.
A gearbox reduces the external mass
moment of inertia by a factor of 1/i2.

λ=Jexternal
Jinternal

J external reduced to input:
J´external = Jexternal / i²
Simple applications ≤ 10
Dynamic applications ≤ 5Highly dynamic applications ≤ 1

Safety instruction
For applications with special safety
requirements (e.g. vertical axes, distorted
gear inputs) we recommend exclusively
employing our Premium and Advanced
products (V-Drive excluded).

Servo actuators
In addition to a high-precision planetary
gearbox, the servo actuator is equipped witha powerful, permanent magnet synchronous
servo motor, which ensures high power
density and a high speed stability thanks to
the distributed winding. This enables evenmore compact and powerful linear drives
to be realized. The investment costs for thedrive train and the ongoing operating costs
can be positively influenced by downsizing.
The goal is to achieve a smaller input andtherefore a smaller servo controller andlower energy consumption with the same
productivity. A low mass moment of inertia
combined with higher rigidity is the way toachieve this.

Shaft misalignment

Static torsional rigidity (CTstat)

One main function of the coupling is thecompensation of the shaft misalignment
which occurs in almost all applications
between the drive and the output side. A
distinction is made between ➞ axial, ➞ lateral- and ➞ angular misalignment. Whencomplying with the indicated maximum
misalignment, the couplings are safe forthe duration of their service life.

Torsional rigidity at 50 % T N

Slipping torqueTechnical data

With a smaller clamping hub diameter, it
is possible that the transmittable torqueof the shaft-hub connection is lower thanthe maximum accelerating torque TB of thecoupling. In particular, this is applicable tothe series BC3, BCT Standard, EL6 andELC. More detailed information is available
on request.

Further technical data for our complete
product portfolio is available to downloadfrom our website.

Speed (n)The permitted maximum speed n1Max must
be compared with the maximum speed
n1max during operation. The maximum permissible speed n1Max must not be exceededat any time.
The average speed n1m is determined as
the arithmetic mean of the speeds in thecycle or over a maximum of 20 minutes.
It must be below the permitted nominal
speed n1N at all times. This applies to both
cyclic and continuous operation.
n

n1m =

|n1,0| · t0 + ... + | n1,n |· tn with ∑ tn ≤ 20min
t0 + ... + tn

0incl. pause time

WITTENSTEIN alpha determines thethermal speed limit or thermal limit of
the nominal speed in the laboratory at an
ambient temperature of 20°C while maintaining a gearbox temperature of 90°C.

Synchronous run
The synchronous run refers to the measurable variation in speed between the
input and output during one revolution of
the output shaft. It is caused by manufacturing tolerances and results in ratio
fluctuations within one revolution.

Temperature factor (f t)With elastomer couplings, the ambient
temperature impacts the maximum admissible accelerating torque of the coupling.
This is taken into consideration in the coupling design by means of the temperaturefactor f t. The temperature factor dependingon the elastomer insert used can be
determined by means of the table.
Elastomer insert

Metal
bellows

Temperature °C

A

B

C

> -30 to -10

1.5

1.3

1.4

1.0

> -10 to +30

1.0

1.0

1.0

1.0

> +30 to +40

1.2

1.1

1.3

1.0

> +40 to +60

1.4

1.3

1.5

1.0

> +60 to +80

1.7

1.5

1.8

1.0

> +80 to +100

2.0

1.8

2.1

1.0

> +100 to +120

-

2.4

-

1.0

speedline® delivery
If required, standard series can bedelivered within 24 or 48 hours ex
works. Fast deliveries at short notice
thanks to a high level of flexibility

Spring rigidity (C)Counter-force of the coupling in the eventof axial or lateral misalignment [N/mm]. A
distinction is made between ➞ axial and➞ lateral spring rigidity.

➞ Refer to this term for further details.
119

Information

Ratio of mass moment of inertia(λ = lambda)

Glossary – the alphabet
Thermal behavior temperature
It is necessary to measure the maximum temperature of the gearbox in theapplication.
The gearbox temperature is significantly
influenced by the following applicationspecific factors:•

Load spectrum with nominal torqueand nominal speed•

Motor temperature (e.g. heat input
from the motor)•

Heat dissipation to the machine interface (e.g. mounting on a stainless steel
structure or very thin mounting plates)•

Convection (e.g. convection prevented
by installation location)•

Ambient temperature (e.g. excessively
high ambient temperature of the air andthe mechanical interface parts)

If the permissible gearbox temperature isexceeded, the service life of the gearbox
is reduced considerably.

Tooth engagement frequency (fz)Torsional rigidity (Ct21) (gearbox)

In certain circumstances, the toothengagement frequency can lead tovibration problems in the application,
specifically if the excitation frequency
corresponds to a natural frequency of
the applications. For planetary gearboxes
from WITTENSTEIN alpha (exception: gearboxes with ratio i = 8) the toothengagement frequency can be calculatedusing the formula fZ = 1,8 · n2 [min-1]
It is independent of the ratio in planetary
gearboxes from Wittenstein alpha. If it
does prove problematic, either the natural
frequency of the system can be changed
or a different gearbox (e.g. hypoid gearbox)with a different tooth engagement frequency
can be chosen.

The torsional rigidity [Nm/arcmin] Ct21
is defined as the quotient of applied
torque and resulting angle of rotation(Ct21 = ∆T/∆Φ). It indicates the torquerequired to turn the output shaft by one
angular minute. The torsional rigidity canbe determined using the ➞ hysteresis
curve Torsional rigidity C, angle of rotationl ΦTorsional backlash (jt)Torsional backlash jt [arcmin] describes the
maximum angle of rotation of the output
shaft in relation to the input. In simple
terms, the torsional backlash describes the
distance between two tooth flanks.

The tilting moment M2k is a result of the➞ axial and lateral forces applied andtheir respective force application points
in relation to the inner radial bearing on
the output side.

The tilting rigidity C 2K of the gearbox ismade up of the bending rigidity of theoutput or pinion shaft and the bearing
stiffness of the output bearing. It isdefined as a quotient of the tilting
moment M 2K [Nm] and tilting angle
Φ [arcmin] (C 2K = M 2K /Φ).

120

C(n),ab = C(n),an * i²with i = gearbox ratio [ - ]C(n) = Individual rigidities [Nm/arcmin]
Note: The torsional rigidity C t21 for the
gearbox always relates to the output.
Series connection of torsional rigidities
1/Cges = 1/C1,ab + 1/C2,ab + …+ 1/C(n)Angle of rotation Φ [arcmin]Φ = T2 * 1/Cges
with T2 = output torque [Nm]Tilting moment (M2k)

Tilting rigidity

Reduce all torsional rigidity to the output:

Torsional rigidity (CT )(couplings)

Backlash
The measurement is taken with the input
shaft blocked.

The output is then loaded with a definedtest torque in order to overcome theinternal gearbox friction. The main influenceof the backlash is the flank backlash between
the teeth. The low torsional backlash of the
WITTENSTEIN alpha gearbox is achieved
through high manufacturing precision andselective combination of the toothed wheels.

The torsional rigidity [Nm/arcmin] CT isdefined as the quotient of applied torqueand resulting angle of rotation. It shows
the torque required to turn the two
clamping hubs against each other by one
angular minute. If the maximum value is
exceeded, the coupling can no longer
transmit the applied torque since the➞ angle of rotation of the coupling
becomes too large. A distinction ismade between ➞ static and ➞ dynamic
torsional rigidity.

Torque (T2α)
T2α represents the maximum torque thatcan be transmitted by the gearbox. Thisvalue may be reduced depending on
application-specific boundary conditions andthe precise evaluation of the motion profile.

121

Information➞ Refer to this term for further details.

Glossary – Formulae
Formulae

Torque [Nm]T=J·α

J = Mass moment of inertia [kgm2]
α = Angular acceleration [1/s2]

Torque [Nm]

T=F·I

F = Force [N]l = Lever, length [m]Acceleration force [N]Fb = m · a

m = Mass [kg]a = Linear acceleration [m/s2]

Frictional force [N]FReib = m · g · μ

g = Acceleration due to gravity 9.81 m/s2
μ = Coefficient of friction

Angular speed [1/s]ω = 2 · π · n / 60

n = Speed [rpm]π = PI = 3.14...

Linear speed [m/s]v=ω·rv = Linear speed [m/s]r = Radius [m]Linear speed [m/s] (spindle)

vsp = ω · h / (2 · π)h = Screw pitch [m]Linear acceleration [m/s2]

a = v / tb
tb = Acceleration time [s]Angular acceleration [1/s ]α = ω / tb

Pinion path [mm]s = mn · z · π / cos β

2Conversion table
1 mm= 0.039 in

1 Nm= 8.85 in.lb

1 kgcm2= 8.85 x 10-4 in.lb.s2

1N= 0.225 lbf

1 kg= 2.21 lbm

122

mn = Normal module [mm]z = Number of teeth [-]β = Helix angle [°]SymbolSymbolUnit

Designation

Index

Designation

C

Nm/arcmin

Stiffness

Capital letter

Permissible valuesED%, minDuty cycle

Small letter

Actual values

F

N

Force

1

Input

fs

–

Load factor2

Outputfe–

Factor for duty cycle

A/a

Axial

i

–

Ratio

B/b

AccelerationjarcminBacklashcConstantJ

kgm2

Mass moment of inertiadDeceleration

K1

Nm

Factor for bearing calculation

e

Pause

L

h

Service life

h

Hours

LPA

dB(A)

Operating noise

K/kTilting

m

kg

Mass

m

Mean

M

Nm

TorqueMax/max

Maximum

n

rpm

Speed

Mot

Motor

p

–

Exponent for bearing calculation

N

Nominalη%

Efficiency

Not/not

Emergency stop

t

s

Time

0

No loadT

NmTorqueQ/qLateralvm/minLinear speedtTorsionalz

1/h

Number of cycles

T

Tangential

123

Information

Index

XP+ / RP+ – Ordering code
XP

010

S

–

M

F

1

5

–

–

0

E

1

–

2

S

Ratio
Product type SizeXP+
010 – 050RP+
030 – 080

Number of stages
1=1
2=2
3=3
Gearbox model
F = Standard
A = HIGH TORQUE
C = HIGH SPEED

Gearbox variant
M = Motor-mounted
S = Self-contained

Characteristic
F = Food-grade lubrication
G = GreaseH = Food-grade grease
K = Output compatible with SP+
R = Flange with slotted holes
S = Standard

124

Generation
2

Backlash
1 = Standard
0 = Reduced

Motor connection
A = Optimized mass inertia
K = Coupling
N = Keyed clamping hub socket
S = Clamping hub socket

Clamping hub diameter(see table on page 127)
For self-contained version:
input shaft shape

Output shape(Shaft)0 = Smooth shaft
1 = Shaft with key
2 = Splined shaft(DIN 5480)
3 = System output
4 = Other
5 = Blind hollow shaft

Output shape(Flange)
0 = Flange
3 = System output
4 = OtherXPK+ / RPK+ – Ordering code
020

S

–

M

F

2

50

–

–

0

E

1

–

1

K

0

0

Ratio
Product type Size
XPK+
020 – 050RPK+
040 – 080

Number of stages
2=2
3=3
4=4
Gearbox model
F = Standard
A = HIGH TORQUE

Gearbox variant
M = Motor-mounted

RPK+ orientation to theapplication (see diagram)
A = 6 o'clock
B = 9 o'clock
C = 12 o'clock
D = 3 o'clock

Generation
1

Backlash
1 = Standard
0 = Reduced

Clamping hub
diameter(see table on
page 127)

Characteristic
F = Food grade lubrication
R = Flange with slotted holes
S = Standard–

Number of
output stages
1=1
2=2

Number of input
stages0=0
1=1Motor connection
A = Optimized mass inertia
K = Coupling
N = Keyed clamping hub socket
S = Clamping hub socket

Output shape(Shaft)0 = Smooth shaft
1 = Shaft with key
2 = Splined shaft(DIN 5480)
3 = System output
4 = Other
5 = Blind hollow shaft

Output shape(Flange)
0 = Flange
3 = System output
4 = Other

125

Information

XPK+XPC+ / RPC+ – Ordering code
XPC+

010

S

–

M

F

2

10

–

–

0

C

1

–

1

K

0

0

Ratio
Product type Size
XPC+
010 – 050RPC+
040 – 060

Number of stages
2=2
3=3
4=4
Gearbox model
F = Standard
A = HIGH TORQUE

Gearbox variant
M = Motor-mounted

Clamping hub
diameter(see table on
page 127)

Characteristic
F = Food grade lubrication
R = Flange with slotted holes
S = Standard

Number of output
stages
1=1
2=2

Number of input
stages0=0
1=1Motor connection
A = Optimized mass inertia
K = Coupling
N = Keyed clamping hub socket
S = Clamping hub socket

Output shape(Shaft)0 = Smooth shaft
1 = Shaft with key
2 = Splined shaft(DIN 5480)
3 = System output
4 = Other
5 = Blind hollow shaft

126

RPC+ orientation to theapplication (see diagram)
A = 6 o'clock
B = 9 o'clock
C = 12 o'clock
D = 3 o'clock

Generation
1

Backlash
1 = Standard
0 = Reduced–

Output shape(Flange)
0 = Flange
3 = System output
4 = OtherMounting positions and clamping hub diameters
Planetary gearboxes

B5
Horizontal

V1
Output vertical
downwards

Clamping hub diameter(see technical data sheet for possible diameters)

V3
Output vertical
upwards

S
Can be tilted ±90°from a horizontal
position

Code lettermm

Code letter

mm

B

11

I

32

C

14

K

38

E

19

M

48

G

24

N

55

H

28

O

60

Intermediate sizes possible using bushings witha minimum thickness of 1 mm.

Hypoid and bevel gearboxes
For information purposes only –not required when placing orders!

B5 / V3
Output horizontal /motor shaft vertical upwards

B5 / V1
Output horizontal /motor shaft vertical downwards

V1 / B5
Output vertical downwards /motor shaft horizontal

Permitted standard mounting
positions for right-angle gearboxes(see illustrations)
If the mounting position is different,
contact WITTENSTEIN alpha without
failV3 / B5
Output vertical upwards /motor shaft horizontal

B5 / B5
Output horizontal /motor shaft horizontal

Orientation to the application
C
Please note the orientation when placing
your order.

Adjustment hole

B

A

127

Information

DTel. +49 7931 493-0

Walter-Wittenstein-Straße 1

24h-Service-Hotline: Tel. +49 7931 493-12900

97999 Igersheim

speedline®: Tel. +49 7931 493-10444

Germany

info@wittenstein-alpha.com

WITTENSTEIN alpha – Intelligent drive systems
www.wittenstein-alpha.com

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