This item will be shipped within One Week Returns Subject to 15% restocking Fee FHFTJ201D-8G Flange Standard 2 Bolt Unit Ball Bearings Eccentric Locking Collar 1/2" inch Inner Diameter FHFTJ201D-8G Flange Standard 2 Bolt Unit Ball Bearing, Bearing is Standard duty and high grade cast iron, bearing is solid base housing design for added strength, bearing is narrow inner ring, bearing is relubricatable, Standard seal is RST tight riding, full cover, metal shroud seals.