UC204-20mm Bearing Insert 20mm MountedThis item will be shipped within One Week Returns Subject to 15% restocking Fee UC204 20mm Bearing Insert Set Screw Locking 20mm Inner Diameter UC204 20mm Bearing Insert, Bearing is standard duty, bearing is Wide inner ring with spherical outer ring, Bearing is relubrication groove with oil hole on set screw side, bearing is nylon patched class 3A set screw, Standard seal is R Seal. UC204 20mm Bearing Cylindrical Carttridge Ball Bearing Shaft