S6308-2RS sealed Ball Bearing Stainless Steel 40mm x 90mm x 23mm S6308-2RS Double sealed ball Bearing, radial, deep groove ball bearing,S6308-2RS bearing is made of Stainless Steel and Stainless steel cage,S6308-2RS bearing is closed with rubber seals to protect the bearing from dust or any possible contamination,bearings is sealed and self lubricated,S6308-2RS bearing is lubricated with grease.