This item will be shipped within One Week Returns Subject to 15% restocking Fee FHFTJ201D-8 Flange Standard 2 Bolt Unit Ball Bearings Eccentric Locking Collar 1/2" inch Inner Diameter FHFTJ201D-8 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 Non-relubricatable, Standard seal is RST tight riding, full cover, metal shroud seals.