The cycloidal gear drive allows backlash to be reduced to:

Backlash is the displacement that occurs when torque is induced and relieved, causing the gear teeth to engage and then disengage, which allows gaps and loss of accuracy.

An arc minute would equal backlash measured at less than 1/60 of 1 degree.

The design of the cycloidal gear drive transmits power through a centrally located input gear to an outer group of spur gears, which reduces speed.

The cycloidal gear design is large and only able to be used in a limited number of applications.

The cycloidal gear design may be used in robotics, welding positioners, and other applications such as medical imaging equipment and wind turbine generators.

The cycloidal gear design allows for greater positioning accuracy and motion control than the planetary gear design.