6803-2RS Sealed Ball Bearing 17mm x 26mm x 5mm One Bearing 6803-2RS Sealed Ball Bearing is double sealed, radial and deep groove ball bearing,6803-2RS is made of Chrome Steel with chrome steel balls and steel cage,bearing is closed with rubber seals to protect the bearing from dust or any possible contamination,6803-2RS bearing is sealed and self lubricated,the quality is set to EMQ (electric motor quality) to ensure high speed,6803-2RS bearing is lubricated with grease.