6201-8-2RS Sealed Ball Bearing 1/2" inch x 32mm x 10mm 6201-8-2RS Sealed Ball Bearing, 6201-8-2RS Bearing is made of Chrome Steel, this 6201-8-2RS bearing is sealed with rubber seals to protect the bearing from dust or any possible contamination, 6201-8-2RS bearing is self lubricated bearing (bearing is already greased).