This listing is for 4 piece/s.Thrust ball bearings consist of a shaft washer, a housing washer and a ball and cage thrust assembly. The bearings are also separable which means that mounting is simple. Thrust bearings feature ball bearings supported within a ring and are designed to primarily support an axial load. Single direction thrust bearings accommodate axial loads in just one direction, while double direction thrust bearings can locate a shaft axially in both directions. Specifications Inside Diameter: 50mm Outside Diameter: 70mm Ball Bearing Type: Thrust Race Width: 14mm Number of Rows: 1 Static Load Rating: 68kN Material: Steel Ball Material: Steel Cage Material: Pressed Steel Race Type: Plain Dynamic Load Rating: 26kN Bore Type: Parallel