Features Superior and excellent bearing steel material, firm and anti-corrosion for long service life. Super precise raceway, improve bearing stability and ensure smooth operation. Features with high precision, strong bearing capacity, low noise when rotating, and high speed. Easy and simple to install, with precise manufacturing and stable performance. Widely used for mechanical engineering, equipment installation and maintenance. Specification: Condition: 100% Brand New Item Type: Thrust Ball Bearing Material: High Precision Bearing Steel Color: As shown Model: 51201 Inner diameter: approx. 12 mm. Outer Diameter: Approx. 28mm/1.1inch Thickness: approx. 11 mm. Cage Process: Stamping Bearing Material: Bearing Steel Roll Type: Ball Track Type: Convex Track Seals and dustproof form: 2RS Rolling column number: single column Package list: 5 x Thrust Ball Thrust Bearings Package List 5 x Axial Ball Thrust Bearing