6000-2RS Ceramic Bearing 10x26x8 Si3N4 Nylon Cage ABEC-56000 2RS Sealed Ball Bearing ABEC 5 Quality with Si3N4 Ceramic Balls Nylon Cage 6000 2RS Bearing is double sealed, radial and deep groove ball bearing,6000 2RS bearing is made from Chrome Steel with Ceramic Balls (Si3N4) and Nylon cage,bearing is closed with rubber seals to protect the bearing from dust or any possible contamination, 6000 2RS bearing is sealed and self lubricated,the quality is set to EMQ (ABEC 5 quality) to ensure high speeds, 6000