6908-2RS Ceramic Hybrid C3 Ball Bearing Chrome Steel and Ceramic Balls One Bearing Hybrid ceramic chrome steel sealed bearings 6908-2RS Bearings with ZrO2 Ceramic Balls Electric motor quality, Bearing 6908-2RS is a popular size that could be used in many application that uses this size 40mm x 62mm x 12mm, each 6908 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 6908 has industrial packaging.