Four-point Contact Ball Slewing Bearing

Four-point contact ball slewing bearing is mainly composed of an inner ring, an outer ring, a row of steel balls and a cage (or spacer). Four-point contact ball inner ring, and the outer ring has an integral and split structure. Four-point contact ball slewing bearing can bear axial load, overturning moment and radial load at the same time. Almost all steel balls will bear the load under the combined action of the axial load and the tilt moment load. When bearing a pure axial load, the steel balls are in contact with the raceways of the outer ring and the inner ring respectively. When the radial load exceeds a certain value, the contact balls in the outer raceway and the inner raceway will have two points respectively.