This item will be shipped within One Week Returns Subject to 15% restocking Fee GRP210-50mm Pillow Block Standard Shaft Height Ball Bearing GRIP-IT 360 Degree Locking 50mm Inner Diameter GRP210-50mm Pillow Block Standard Shaft Height Ball Bearing, Bearing is solid foot housing design, bearing has wide inner ring, bearing is relubricatable unit, Bearing is black oxide plated inner and outer rings, Standard seal is R-Seal.