This item will be shipped within One Week Returns Subject to 15% restocking Fee FHSR204-20m-4X729 Flange Rubber Insulated Pressed Steel Ball Bearing Set Screw Locking 20mm Inner Diameter FHSR204-20m-4X729 Flange Rubber Insulated Pressed Steel 2 Bolt Ball Bearing, Bearing is one piece and light duty pressed steel housing, bearing is conductive rubber bearing liner reduces noise and vibration and static electricity, bearing is flush mount style ideal in tight mounting areas, bearing is zinc plated stamped steel, bearing is narrow inner ring, Standard seal is RST tight riding, full cover, metal shroud seals.