This item will be shipped within One Week Returns Subject to 15% restocking Fee FHFD203-17mm Flange Light Duty 2 Bolt Unit Ball Bearings Eccentric Locking Collar 17mm Inner Diameter FHFD203-17mm Flange Light Duty 2 Bolt Unit Ball Bearing, Bearing is Light Duty and high grade cast iron, ideal for applications with limited mounting space, bearing is narrow inner ring, bearing is relubricatable, Standard seal is RST tight riding, full cover, metal shroud seals.