6015ZZ Shielded Ball Bearing 75mm x 115mm x 20mm One Ball Bearing 6015ZZ Shielded Ball Bearing, bearing is Chrome steel, 6015ZZ has Electric motor quality, each 6015ZZ bearings is closed with 2 Metal Shields, one Shield from each side, to protect the bearing from dust or any possible contamination, also 6015ZZ bearings are pre-lubricated with grease, Bearings 6015ZZ has industrial packaging.