Hirth Couplings and Serrations

Hirth couplings are form-locking, self-centering and easily detachable connection components. They connect shafts, disks, rotors, wheels and cranks made of metal or plastic – with remarkable precision and maximum torque capacity.

Torque up to 15,000 kNm can be transmitted wear-free, with comparably small diameter. Positional accuracy of 1 – 2 angle seconds is achievable.


Our product portfolio includes:

  • Machining of teeth on customer components
  • Manufacture of customer specific Hirth rings
  • Supply of standard Hirth rings
  • Engineering services in calculation, design and quality control

Typical applications:

  • Fans
  • Blowers
  • Mills
  • Crushers
  • Levellers


See full product information in English