Radial Ball Bearing Bearing Industry Number 6306 Bore Diameter 30 mm Closure Double Sealed Outer Ring Width 19 mm Outside Diameter 72 mm Ring Material Stainless Steel Seal Type Contact System of Measurement Metric Cage Material Stainless Steel ABEC Rating 1 Ball Material Stainless Steel Bore Diameter Tolerance +0/-0.01 mm Dynamic Radial Load Capacity 6 000 lbf Flange Diameter Not Applicable Flange Thickness Not Applicable Flange Type Non-Flanged Includes Retaining Ring No