Radial Ball Bearing Bearing Industry Number 61808 Bore Diameter 40 mm Closure Double Shielded Outer Ring Width 7 mm Outside Diameter 52 mm Ring Material Stainless Steel System of Measurement Metric Cage Material Stainless Steel ABEC Rating 1 Ball Material Stainless Steel Bore Diameter Tolerance +0/-0.012 mm Dynamic Radial Load Capacity 1 140 lbf Flange Diameter Not Applicable Flange Thickness Not Applicable Flange Type Non-Flanged Includes Retaining Ring No