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The Sumitomo Cyclo drive is unsurpassed by any other inline drive available in the market today. Cyclo's unique epicycloidal design has advantages superior to speed reducers using common involute tooth gears. Cyclo components operate in compression, not in shear. Unlike gear teeth with limited contact points, a Cyclo has two thirds of its reduction components in contact at all times. This design enables Cyclo speed reducers and gear motors to withstand shock loads exceeding 500% of their ratings, and provide exceptional performance, reliability and long life in the most severe applications.


Sizes: 38 models (5lbs to 5000lbs)
Torque Rating: 210 to 603,000 lb in
HP Rating: .10 to 232 HP
Ratio Range: 3 to 119 (single), 121 to 7569 (double), 8041 to 658,503 (triple)
Mounting: Foot, Flange, Face Mount
Motor Standards: NEMA, IEC, JIS, UL, CSA, CE


  • Highest overload capacity, exceeding 500%.
  • Exceptional life with a 24 month unlimited warranty.
  • High efficiency, even at high reduction ratios.
  • Unlike involute gearing, no thermal limits.
  • Available as inline speed reducer or gear motor.
  • Ideal for severe, high shock applications.
  • Grease lubricated for no maintenance.


  • Conveyors
  • Food Machinery
  • Mixers
  • Automotive Plants
  • Wastewater Treatment
  • Recycling Equipment
  • Poultry Processing Equipment
  • Sawmills and Wood yard Equipment
  • Run out Tables
  • Construction Machinery
  • Paper Handling Equipment

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