6202-2RS C3 Ceramic Hybrid Sealed Ball Bearing 15mm x 35mm x 11mm 6202-2RS C3 Ball Bearing Chrome Steel and Ceramic Balls with ZrO2 Ceramic Balls Electric motor quality, each 6202-2RS bearing is closed with 2 Rubber Seals, double sealed and one seal from each side to protect the bearing from dust or any possible contamination, also bearing is pre-lubricated with grease, Bearing 6202-2RS has industrial packaging.