This item will be shipped within One Week Returns Subject to 15% restocking Fee UCX12-60mm Bearing Insert Set Screw Locking 60mm Inner Diameter UCX12-60mm 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.