This item will be shipped within One Week Returns Subject to 15% restocking Fee FHSFX204-20mmG Flange Ductile 2 Bolt Unit Ball Bearings Set Screw Locking 20mm Inner Diameter FHSFX204-20mmG Flange Ductile 2 Bolt Unit Ball Bearing, Bearing is standard duty and high strength ductile iron, bearing is narrow inner ring, bearing is relubricatable, Standard seal is RST tight riding, full cover, metal shroud seals.