Cyclo® Reducer

Our best-selling reducer with high strength and reliability, thanks to the unique Cyclo® mechanism.

  • With its long history and delivery record, it has become synonymous with the term speed reducer.
  • Unique Cyclo® mechanism results in high durability and extended operating life.
  • Wide variety of products available that take advantage of this technology.
  • Select the best product to meet your needs from a wide range of capacities and reduction ratios.
80 years
of proven track performance
500 %
Shock load capacity with Cyclo units
24 months
warranty worldwide

Product Features

Cycloidal Speed Reduction Technology
Quiet, efficient and reliable operation with high torque density and compact in size
Break-Resistant Teeth
The "cycloidal disc" has a unique and smooth curve, which together with its smooth rolling contact, prevents tooth breakage, resulting in a durable product with a long product life.
Modular Design
Interchangeable cast iron housing in foot, flange or face mounting configurations.
Superior Steel Components
Internal components manufactured from hardened, vacuum-degassed, bearing grade steel provide minimal vibration, low noise, low backlash and extended operational life.
Broad Variation
Choose the product that best fits your needs from a wide selection, including capacities of 0.1 - 132 kW, reduction ratios of 2.5 - 658503, as well as outdoor and explosion-proof motor types.
Service Factor Selection
Choose from any Service Factor. Reducer frame sizes can be increased independently, without increasing motor capacity.

Break-Resistant Teeth

Unlike a regular involute tooth-gear, the "cycloidal disc," which is the gear for the Cyclo® Reducer, features a distinctively smooth curve.
A unique circular-arc tooth profile is also used for the internal gear. The smooth rolling contact that prevents tooth breakage results in a durable gearbox with a long service life. (Some low reduction ratio models use helical gears and planetary gears.)

Related Cyclo® products

CYCLO Speed Reducer with Torque Limiter (Reducer)
Cyclo® Reducer with Torque Limiter
Torque range
50 Nm - 68200 Nm
443 in-lbs - 603620 in-lbs
Ratio range
6:1 - 658503:1
Shaft configuration