This item will be shipped within One Week Returns Subject to 15% restocking Fee FHSP204-20mm Pillow Block Standard Shaft Height Ball Bearing Set Screw Locking 20mm Inner Diameter FHSP204-20mm Pillow Block Standard Shaft Height Ball Bearing, Bearing is solid foot housing design, bearing has Narrow inner ring, bearing is Non-relubricatable unit, Standard seal is RST tight riding, full cover, metal shroud seals.