Attributes . Pre-Lubricated and Made to ABEC-1 Tolerance, Bearing Inserts are Encased in Non-Conductive, Oil Resistant Rubber Liner Which Corrects up to a 2 Degrees Misalignment While Reducing Vibration and Noise, Neoprene Seal Keeps Contaminants Out Allowing for Usage in Wet or Dry Conditions, Two-Piece Steel Housing has a Rust-Proof Plated Finish, Wide Inner Race Locks Securely to the Shaft with Two Set Screws . Names