Radial Ball Bearing, Bearing Industry Number 6303, Bore Diameter 17 mm, Closure Double Shielded, Outer Ring Width 14 mm, Outside Diameter 47 mm, Ring Material Alloy Steel, System of Measurement Metric, Cage Material Steel, ABEC Rating 1, Ball Material Alloy Steel, Bore Diameter Tolerance +0/-0.007 mm, Dynamic Radial Load Capacity 14.3 kN, Fillet Radius 1 mm, Includes Retaining Ring No, Lubricant Material MT47 Grease