Characteristics of worm gear reducer

The main feature of worm gear reducer is that it has reverse self-locking function and can have large reduction ratio. The input shaft and output shaft are not on the same axis or plane. But usually, the volume is very large, the transmission efficiency is not high, and the precision is not high.
Planetary reducer has the advantages of relatively compact structural features, small return clearance, high precision, long service life and large rated output torque. But the price is slightly expensive.