6205-2RS C3 Ceramic Hybrid Ball Bearing Chrome Steel and Ceramic Balls 6205-2RS Hybrid ceramic chrome steel sealed bearing with ZrO2 Ceramic Balls Electric motor quality, Bearing 6205-2RS is a popular size that could be used in many application that uses this size 25mm x 52mm x 15mm, each 6205-2RS 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 are pre-lubricated with grease.