This item will be shipped within One Week Returns Subject to 15% restocking Fee GR211-55mm Bearing Insert GRIP-IT 360 Degree Locking 55mm Inner Diameter GR211-55mm Bearing Insert, Bearing is Standard load capacity, bearing is Wide inner ring with spherical outer ring, Bearing is relubrication groove with oil hole on locking collar side, bearing has anti-rotation pin on side opposite grease groove, Bearing is black oxide plated inner and outer rings, Standard seal is R-Seal.