Radial Ball Bearing, Bearing Industry Number R4A, Bore Diameter 1/4 in, Closure Double Shielded, Outer Ring Width 0.281 in, Outside Diameter 3/4 in, Ring Material Alloy Steel, System of Measurement Inch, Cage Material Steel, ABEC Rating 1, Ball Material Alloy Steel, Bore Diameter Tolerance +/-0.005 mm, Dynamic Radial Load Capacity 2,810 lbf, Includes Retaining Ring No, Lubricant Material Grease