A cycloidal reducer is a kind of gear reducer. The essential operation is that an input shaft connects to and drives an eccentric bearing. This bearing further drives a cycloidal disk (sometimes known as a cam) that connects to an result shaft.

cycloidal reducer
Regular cycloidal speed reducers, such as for example these Dojen series reducers from Onvio, provide zero backlash by combining a substance reduction cam with preloaded, full compliment Rotary Vane Vacuum Pumps needle bearing cam followers.

The cycloidal disk (or cam) has lobes or teeth that build relationships some type of cam follower, typically a pin or needle bearings. The eccentric rotation of the cam can be transformed into rotation of an result shaft at a lower life expectancy speed and a rise in torque.

The main benefit of cycloidal reducers is their property of zero or near-zero backlash, which results in high precision and high accuracy. This is especially popular where highly specific and accurate positioning is necessary, for instance in robotic applications, machine equipment, and comparable applications. Cycloidal reducers also feature rolling instead of sliding contact, thus experiencing less overall use.