RP+ planetary gearbox

  • RP+ planetary gearbox with output flange
  • RP+ planetary gearbox with pinion
  • High Performance Linear System with planetary gearbox RP+, High Performance pinion and innovative rack

  • Motor mounting alpha Advanced Line / alpha Premium Line Planetary gearboxes 

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

Please contact your respective sales engineer or contact us via mail info@wittenstein-alpha.com for further information or CAD data.

Customised solutions

We will be happy to develop a solution for you that is tailored to your drive needs. You benefit from our years of experience, our highly skilled staff and our comprehensive service catalog. Please contact us.

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  • Technical data
  • Options
Product type RP+RP+
Version MFMA
Ratio 4 - 105,5 - 220
Number of sizes 35

Max. backlash c)

jt [arcmin]Standard

≤ 3

≤ 1


≤ 1


Max. torqueT2a [Nm]352 - 2560583 - 10450
Max. input speedn1Max [rpm]50006250
Torsional rigidityCt21 [Nm/arcmin]6102000
Max. tilting momentM2KMax [Nm]1100034000

c) In relation to reference sizes

Product typeRP+RP+
Output shape  
System output
Input shape  


Flange with slotted holes (standard)
Food-grade lubrication a) b)
Optimized mass inertia a)
System solutions  
Linear system (rack / pinion)
Servo actuator

a) Performance reduction: Technical data available on request

b) Please contact WITTENSTEIN alpha

Product highlights

Consistently high performance

Constant backlash throughout the service life of the gearbox ensures a consistently high performance.

Low maintenance

Highest quality standards guarantee a long service life and extend maintenance intervals.

Machine Interface

Integrated slotted holes ease up the positioning of rack and pinion while increasing the overall system rigidity through the elimination of additional plates.


Reinforced bearings withstand the highest forces – while maintaining a compact design.

Positioning accuracy

Minimal backlash and highest possible rigidity ensure maximum positioning accuracy at the tool center point.


Extremely reliable gearboxes prevent cost-intensive machine breakdowns. 

WITTENSTEIN alpha in all axes

Low backlash planetary gearboxes

WITTENSTEIN alpha develops complete, single-supplier solutions for any driving axis. They can be used in virtually any application – from high-precision axes in manufacturing systems to packaging machinery where maximum productivity is required. 
The name WITTENSTEIN alpha is a byword for premium quality and reliability, high precision and synchronization accuracy, highest power density, a long lifetime and very simple motor mounting.