62302-2RS Sealed Ball Bearing 15 x 42 x 17 mm 62302-2RS Sealed Ball Bearing, the inner diameter is 15mm, outer diameter is 42mm and the width is 17mm, Bearing is made of Chrome Steel, each bearing has 2 Rubber Seals to protect the bearing from dust or any possible contamination, also bearing is pre-lubricated with grease.