Radial Ball Bearing Bearing Industry Number R4 Bore Diameter 1/4 in Closure Double Sealed For Environment Oily/Greasy Outer Ring Width 0.196 in Outside Diameter 5/8 in Ring Material Stainless Steel Seal Type Contact System of Measurement Inch Cage Material Stainless Steel ABEC Rating 1 Ball Material Alloy Steel Ball Material Grade AISI 52100 Bore Diameter Tolerance +0/-0.0003 in Cage Material Grade 304 Dynamic Radial Load Capacity 268 lbf Flange Diameter Not Applicable