S6000-2RS Sealed Ball Bearing ABEC-3 Quality with Si3N4 Ceramic Balls (Silicon Nitride) 10mm x 26mm x 8mm S6000-2RS double sealed radial deep groove ball bearing, S6000-2RS bearing is made of Stainless Steel with Ceramic Balls (Si3N4) and Stainless steel cage, S6000-2RS bearing is closed with rubber seals to protect the bearing from dust or any possible contamination, S6000-2RS bearing is sealed and self lubricated, the quality is set to EMQ (ABEC-3 quality), S6000-2RS bearing is lubricated with grease.