This item will be shipped within One Week Returns Subject to 15% restocking Fee FHPRZ204-20mm-IL Pillow Block Rubber Cushioned Pressed Ball Bearing Eccentric Locking Collar 20mm Inner Diameter FHPRZ204-20mm-IL Pillow Block Rubber Cushioned Pressed Ball Bearing, bearing is light duty, self-aligning pressed steel housings, conductive rubber bearing liner reduces noise/vibration and static elctricity, housing unit is available with inter-locking feature(IL suffix), bearing is narrow inner ring, Standard seal is RST tight riding, full cover, metal shroud seals.