XPK+ hypoid gearboxes

  • XPK+ hypoid gearbox with output shaft

  • XPK+ hypoid gearbox with pinion and slotted holes
  • Premium Linear System with XPK+ hypoid gearbox with slotted holes and innovative rack INIRA®

Power and precision in a compact design

The Premium planetary gearbox are now available in a right-angle version XPK+ 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.

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

Customized solutions

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

Contact form

WITTENSTEIN alpha GmbH - Walter-Wittenstein-Str. 1


Walter-Wittenstein-Str. 1

97999 Igersheim (Germany)

  • Technical data
  • Options
Product type XPK+
Version MF
Ratio c) 12 - 1000
Number of sizes 4

Max. backlash c)

jt [arcmin]Standard

≤ 4

≤ 2

Max. torqueT2a [Nm]40 - 2520
Max. input speedn1Max [rpm]7500
Torsional rigidityCt21 [Nm/arcmin]226
Max. tilting momentM2KMax [Nm]3256

c) In relation to reference sizes

Output shape 
Smooth shaft

Shaft with key d)

Splined shaft (DIN 5480)
Blind hollow shaft
System output
Input shape 
Flange with slotted holes
Food-grade lubrication a) b)
System solutions 
Linear system (rack / pinion)
Accessory (please refer to the product pages for further information) 
Shrink disc

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

Product highlights


Excellent torque density and rigidity reduce your cycle duration.

Low maintenance

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


The right-angle gearbox with very high breakdown torque capacity allows new machine concepts, for example a bearingless design.


The right-angle design allows for shorter machine concepts due to being short in the axial plane.


Extremely reliable gearboxes prevent cost-intensive machine breakdowns. 

Process quality

Constant low backlash over the entire service life of the gearbox coupled with high torsional rigidity enables the highest levels of positioning accuracy.

Reinforced bearings

For absorbing high axial and radial forces


Special XP+ output for higher power transmission 

Rearward output

Variable output connection, also rearward

Hypoid gearing

High-quality hypoid gearing for a higher torque and smoother operation

Metal bellows coupling at the input

Length compensation to protect the motor bearing

The XPK+ compared to the industry standard

XPK+ – Your Xtra productivity, precision and space saving

Are you looking for a gearbox far exceeding industry standards in terms of torque, breakdown torque capacity and torsional rigidity?
The XPK+ in the alpha Premium Line offers numerous technical benefits that improve performance several times over, for example with very short cycle times and optimal controllability of your drive axis. This compact “powerhouse” also gives you the option of reducing the installation space still further.

WITTENSTEIN alpha in all axes

Right-angle 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.