Bicycle Hub Bearing Ceramic Premium ABEC-5 Fisher Early Front
S6003-2RS Sealed Ball Bearing is double sealed, radial and deep groove ball bearing, bearing is made of Stainless Steel with Ceramic Balls (Si3N4) and Stainless steel cage, S6003-2RS is closed with rubber seals to protect the bearing from dust or any possible contamination, S6003-2RS bearing is sealed and self lubricated, the quality is set to EMQ (Premium ABEC-5 quality), S6003-2RS bearing is lubricated with grease.