S6303-2RS sealed Ball Bearing Stainless Steel 17mm x 47mm x 14mm S6303-2RS Double sealed ball Bearing, radial, deep groove ball bearing,S6303-2RS bearing is made of Stainless Steel and Stainless steel cage,S6303-2RS bearing is closed with rubber seals to protect the bearing from dust or any possible contamination,bearings is sealed and self lubricated,S6303-2RS bearing is lubricated with grease.