Shrink discs

  • Shrink disks

Always well connected

Harmony in perfection: Our shrink discs are ideally adapted to your extremely compact hollow shaft or mounted shaft connection. This means maximum performance of your drive! The best accessories for the best gearbox in order to achieve full performance.

Your benefits:

  • Reliable and safe transmission
  • Huge installation space reduction
  • Multiple reuse
  • High dynamism and accuracy
  • Extremely smooth-running
  • Corrosion resistant design

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)

  • Versions and applications
  • Technical data
  • Options



Shrink discs are suitable for the following hollow-shaft gearbox versions:

Planetary gearbox:

- XP+
- SP+

Right-angle gearbox:

- HG+
- SPK+
- V-Drive+


  • Technically and geometrically matched
  • Installation space reduction
  • Reliable torque transmission
  • Simple mounting and removal
  • Backlash-free, positive connection
  • Absolutely reliable in an emergency
  • Extremely smooth-running
  • High dynamism and accuracy




Max. transmissible torque T: 51 to 4000 Nm

Selectable load shaft diameter D: 15 to 55 mm

Recommendation for the load shaft:

Tolerance h6

Surface roughness <= Rz 10

Minimum yield strength Rp 0,2 >= 360 N/mm²




Shrink disc material options:

  • Steel
  • Chemically nickel plated
  • Stainless stee