6210RS1 50x90x20 Sealed Ball Bearing6210RS1 Sealed Ball Bearing 50mm x 90mm x 20mm 6210 RS1 Sealed Ball Bearing, 6210RS1 bearing is made from Chrome Steel, 6210RS1 bearing is closed with rubber seals to protect the bearing from dust or any possible contamination, 6210RS1 bearing is self lubricated bearing, 6210RS1 bearing is already greased. 6210RS1 ball bearing Deep Groove Ball Bearing Closures: Rubber Sealed Material: Chrome Steel Size: 50mm x 90mm x 20mm Inner Diameter: 50mm Outer