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Skew Helical Gearboxes – SM

Our Skew Helical Gearbox range is a patented product design offering an alternative to worm gearboxes due to the efficiency of around 90%.


  • Skew Helical Gearbox
  • Ratios up to 148
  • Output torque up to 260Nm
  • Input power up to 4 kW

This gearbox range is very similar in case design to worm gearboxes. Unlike worm gearboxes, due to the innovative use of helical gears, this range is 90% efficient. As a result this new and innovative gearbox utilises helical gears with oblique shafts

For example, at 14rpm with a 0.37kW motor, from the Skew range you would achieve 227Nm compared to only 121Nm using a worm gearbox.

Get in touch today to see what STM UK can do for you!

Essential data:

  • Gear type: Helical
  • Efficiency: 90%
  • Ratios: 8 – 148
  • Max torque: 260Nm


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

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Skew Helical Gearboxes

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