Description: The separable components of thrust ball bearings are interchangeable. This facilitates mounting and maintenance inspections. Thrust Ball Bearings consist of a shaft washer, a housing washer and a ball and cage assembly. They are designed to accommodate axial loads and locate a shaft axially, in one direction only, and must not be subjected to any radial load. Brass Shaft and Housing Washer provide high and uniform hardness, good wear resistance. Specification: Model: F9-20M Material: Brass Inner Diameter: 9mm Outer Diameter: 20mm Thickness: 7mm Package Content:9 x Thrust Ball Bearings