This item will be shipped within One Week Returns Subject to 15% restocking Fee UCPAS204-20mm Pillow Block Tapped Base Ball Bearing Set Screw Locking 20mm Inner Diameter UCPAS204-20mm Pillow Block Tapped Base Ball Bearing, Bearing is solid foot housing design, bearing has Narrow inner ring, bearing is relubricatable unit, Standard seal is R-seal.