Smooth transmission: It can make the transmission more stable and continuous, and reduce impact and vibration.
Strong load-bearing capacity: Compared with spur gears, it usually has higher load-bearing capacity under the same size and conditions.
Low noise: the noise generated during operation is relatively small.
Large contact ratio: It can realize the simultaneous meshing of multiple pairs of teeth, improving the reliability and efficiency of transmission.
Adaptable to high-speed transmission: It is suitable for working at relatively high speeds.
Change the direction of transmission: It can change the direction of  transmission.
Can achieve a large transmission ratio: through reasonable matching, a relatively wide range of transmission ratios can be achieved.