6300ZZ Shielded Ball Bearing 10mm x 35mm x 11mm 6300ZZ Shielded Ball Bearing 6300ZZ is Electric motor quality, each 6300ZZ bearings is closed with 2 Metal Shields, one Shield from each side, to protect the bearing from dust or any possible contamination, also 6300ZZ bearing is pre-lubricated with grease, Bearings 6300ZZ has industrial packaging.