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Worm Gearboxes

The RMI Worm Gearbox from STM UK is constructed from high quality materials to the highest standards. Worm Gearboxes are also a cost effective solution for light to medium duty applications.


  • Right angle Worm Gearboxes
  • Ratios up to 100:1
  • Torque up to 4000 Nm
  • Input power up to 31.61 kW
  • Higher ratios available with pre-stage box
  • Various mounting options
  • Accepts standard IEC Flange and Shaft

Our RMI Worm Gearboxes are a cost-effective solution for many applications.  Whilst becoming less popular due to energy concerns – worm gears are relatively inefficient when compared to other gear designs – they still have their place.

For applications where high radial and axial loads are to be expected, we can fit taper roller bearings to increase the gearbox load capacity. 

Our mechanical torque limiters can also be fitted into this gearbox style allowing protection of the gearbox itself, and the driven machine.

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

Essential data:

  • Gear type: Worm
  • Efficiency: 48%–85%
  • Ratios: 7–100
  • Max torque: 4000 Nm


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

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Worm Gearboxes

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