6812-2RS Sealed Ball Bearing 60mm x 78mm x 10mm 6812-2RS sealed, radial and deep groove ball bearing,6812-2RS bearing is made of Chrome Steel with chrome steel balls and steel cage,6812-2RS bearing is closed with rubber seals to protect the bearing from dust or any possible contamination,6812-2RS bearing is sealed and self lubricated,the quality is set to EMQ (electric motor quality) to ensure high speeds up,6812-2RS bearing is lubricated with grease.