The technical term for planetary reducer

Deceleration ratio: the ratio of input speed to output speed.

Series: the number of planetary gears. Generally the largest can achieve three levels, the efficiency will be reduced.

Full load efficiency: Transmission efficiency of reducer under maximum load (fault stop output torque).

Working life: the cumulative working time of reducer under rated load and rated input speed.

Rated torque: It is the torque allowed by the rated life for long operation. When the output speed is 100 RPM, the reducer's life is the average life, more than this value will reduce the average life of the reducer. When the output torque is more than twice the reducer failure.

Noise: dB (A). This value is measured when the input speed is 3000 RPM, without load, and 1 meter away from the reducer.

Return difference: When the input end is fixed, the output end rotates clockwise and counterclockwise. When the output end bears positive or negative 2% rated torque, the output end of the reducer will be shifted by a small angular displacement, which is the return clearance, also known as "back gap". The units are minutes, which is 1/60 of a degree.