Radial Ball Bearing, Bearing Industry Number R8, Bore Diameter 1/2 in, Closure Double Shielded, For Environment Oily/Greasy, Outer Ring Width 0.313 in, Outside Diameter 1 1/8 in, Ring Material Alloy Steel, Seal Type Not Applicable, System of Measurement Inch, Cage Material Steel, ABEC Rating 1, Ball Material Alloy Steel, Ball Material Grade AISI 52100, Bore Diameter Tolerance + 0.0000 /- 0.0003 in, Dynamic Radial Load Capacity 1, 148 lbf, Flange Diameter Not Applicable. This item has been restricted from sale in the following state (s): []