The single row four point contact ball slewing bearing is composed of two seat rings. It has compact structure, light weight and four-point contact between steel ball and arc raceway. It can bear axial force, radial force and overturning moment at the same time.
Worm Gear Slewing Bearing,it is especially suitable for heavy machinery with large diameter, such as bucket wheel excavator, wheel crane, ship crane, ladle slewing and large tonnage truck crane.