6017ZZ Shielded Ball Bearing 85mm x 130mm x 22mm One Ball Bearing 6017ZZ Shielded Ball Bearing, bearing is Chrome steel, 6017ZZ has Electric motor quality, each 6017ZZ bearings is closed with 2 Metal Shields, one Shield from each side, to protect the bearing from dust or any possible contamination, also 6017ZZ bearing is pre-lubricated with grease, Bearings 6017ZZ has industrial packaging.