This item will be shipped within One Week Returns Subject to 15% restocking Fee HCR201-12mm Bearing Insert Eccentric Locking Collar 12mm Inner Diameter HCR201-12mm Bearing Insert, Bearing is Standard load capacity, bearing is Wide inner ring with Cylindrical outer ring, Bearing is Non-relubrication, bearing has oil hole opposite groove makes it interchangeable with all manufacturers, bearing is nylon patched class 3A set screw, Standard seal is R-Seal.