Ball Bearings 6208-2RS 40 x 80 x 18 mm One Bearing 6208-2RS Ball Bearings, 6208-2RS inner diameter is 40mm, 6208-2RS Bearings outer diameter is 80mm and Bearings 6208-2RS width is 18mm, Ball Bearing 6208-2RS is a popular size that could be used in many applications, 6208-2RS Ball Bearings are made of Chrome Steel and can rotate up to 40,000 rpm, each 6208-2RS bearing has 2 Rubber Seals to protect the bearing from dust or any possible contamination, the 6208-2RS bearings are pre-lubricated with grease.