Slewing bearings are widely used in the real industry, and are known as: "joints of machines". Their main applications are widely used: truck cranes, railway cranes, port cranes, marine cranes, metallurgical cranes, container cranes, excavators , Filling machine, and CT standing wave therapy instrument, navigation instrument, radar antenna base, missile launcher, tank, robot, rotating restaurant and so on.

The slewing bearing is usually composed of worm, slewing bearing, housing, motor and other components. Because the core component adopts slewing bearing, it can bear axial force, radial force and tipping moment at the same time.