NPR planetary gearbox

  • NPR – Planetary gearbox with new output geometry – Adapted for linear applications

  • NPR – planetary gearboxes with slotted holes for perfect rack and pinion mounting

  • Value Linear System with planetary gearbox NPR
  • Motor mounting alpha Value Line Planetary and right-angle gearboxes

Individual Talents

The NPR planetary gearbox, another member of the alpha Value Line, is designed for applications with average demands in terms of positioning accuracy. The NPR particularly impresses with its slotted holes in the output flange and is perfect for rack and pinion mounting. 

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  • Technical data
  • Options
Product type NPR
Version MF / MA
Ratio c) 3 - 100
Number of sizes 4

Max. backlash c)

jt [arcmin]Standard

≤ 8

Max. torqueT2a [Nm]51 - 800
Max. input speedn1Max [rpm]8000

c) In relation to reference sizes

Output shape 
Smooth shaft

Shaft with key d)

Splined shaft (DIN 5480)
Input shape 


Flange with slotted holes (standard)
Food-grade lubrication a) b)
System solutions 
Linear system (rack / pinion)
Accessory (please refer to the product pages for further information) 

a) Performance reduction: Technical data available on request

b) Please contact WITTENSTEIN alpha

d) Performance reduction: Please use our sizing software cymex® for a detailed sizing

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.