About Single Row Four Point Contact Ball Slewing Bearing Single row four point contact ball slewing rings are composed of two seat rings, which design in compact structure and light weight, steel ball contact with the circular raceway at four points;

Four point contact ball slewing ring are widely used in various application fields, such as excavators, cranes, rotary tables & positioners, wind turbine, ladle turret furnace, ferris wheel, water treatment, slewing drive, forest machine, medical devices, mining equipment, packaging machine, radar,