This item will be shipped within One Week Returns Subject to 15% restocking Fee UCX05-25mm Bearing Insert Set Screw Locking 25mm Inch Inner Diameter UCX05-25mm Bearing Insert, Bearing is medium load capacity, bearing is Wide inner ring with spherical outer ring, Bearing is relubrication groove with oil hole on set screw side, bearing is nylon patched class 3A set screw, Standard seal is R-Seal.