Ball Bearings 6001RS 12 x 28 x 8 mm Lot of 10 Bearings Pack of 10 Ball Bearings 6001RS, the 6001RS inner diameter is 12mm, 6001RS outer diameter is 28mm and the 6001RS width is 8mm, 6001RS is a popular size that could be used in many applications, 6001RS Bearings are made of Chrome Steel, 6001RS can rotate up to 17000 rpm, 6001RS bearing is closed with rubber seals to protect the bearing from dust or any possible contamination, 6001RS bearings are pre-lubricated with grease, 6001RS Bearings are packed 10 bearings in one plastic tube.