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Double Worm Gearboxes – CR/RR

The CRMI Double Worm Gearbox from STM UK is constructed from high quality materials to the highest standards. Double worm gearboxes are used to achieve low output speeds and are effective on applications which desire irreversibility from the gearbox.


  • Double Worm Gearboxes
  • Ratios up to 10,000:1
  • Torque up to 5000 Nm
  • Input power up to 6 kW
  • Various mounting options
  • Accepts standard IEC Flange and Shaft

Our CRMI double worm gearboxes are particularly suited to applications requiring a low output speed. Whilst the gearboxes inefficiencies are an issue in many applications, it is a benefit in others where the gearbox shouldn’t back drive.

If you are looking for double worm gearboxes, get in touch today to see what STM UK can do for you!

Essential data:

  • Gear type: Worm
  • Efficiency: 14%–57%
  • Ratios: 140–10,000
  • Max torque: 5000 Nm


For further information including Catalogues, Installation Manuals, Parts Lists or 2D/3D drawings please follow the links below:

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Double Worm Gearboxes

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