SMX Series

Shaft mounted speed reducers, SMSR, available as single reduction units with 5:1 ratios and double units with ratios of 13:1, 20:1, 25:1 metric and 15:1 North American.      


  • Rapid Response 'Off the Shelf' availability
  • Interchangeable with Fenner (Eriks), Rexnord, Benzler, Sala and Dodge to allow fast and easy replacement.
  • Robust construction ideal for heavy duty applications.
  • Wide ratio range gives competitive  size selections.
  • Parallel and taper bore options allow easy removal for repair.
  • Sprag clutch backstop available to prevent drive reversal.
  • Enhance seal arrangements for use in hostile environments.

SMX Product Features

  • Hardened and profile ground helical gears for maximum power transmission, smooth operation and long life, with maximum efficiency.
  • High tolerance heavy duty roller bearings for trouble free operation and maximum load carrying capacity.
  • Enhanced seal options on input and output for use in hostile environment conditions.
  • Sprag clutch backstop option to prevent drive reversal.
  • Heavy duty input shaft manufactured in high tensile alloy steel, suitable for all overhung load conditions.
  • Close grain cast iron gear case giving robust case strength, quiet and vibration free running.
  • Fully machined face on both sides of the gear unit for face mounting options.
  • Parallel and taper bore output options available, allowing easy removal for replacement or repair.


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