6205ZZ Shielded Ball Bearings 25 x 52 x 15 mm Lot of 10 Bearings 6205ZZ Shielded Ball Bearings, the inner diameter is 25mm, outer diameter is 52mm and the width is 15mm, Bearing is made of Chrome Steel, each bearing has 2 Metal Shields to protect the bearing from dust or any possible contamination, also bearing is pre-lubricated with grease.