S6901-2RS Stainless Steel Sealed Ball Bearing 12mm x 24mm x 6mm S6901-2RS Stainless Steel Ball Bearing,S6901-2RS bearing has 2 built-in rubber seals to protect the bearing from dust or any possible contamination,S6901-2RS is a made of stainless steel, S6901-2RS is packed already with grease, S6901-2RS seals can be removed and reinstalled.