Radial Ball Bearing, Bearing Industry Number 6309, Bore Diameter 45 mm, Closure Open, For Environment Oily/Greasy, Outer Ring Width 25 mm, Outside Diameter 100 mm, Ring Material Alloy Steel, Seal Type Not Applicable, System of Measurement Metric, Cage Material Steel, ABEC Rating 1, Ball Material Steel, Ball Material Grade AISI 52100, Bore Diameter Tolerance + 0.000 /- 0.012 mm, Dynamic Radial Load Capacity 11, 900 lbf, Flange Diameter Not Applicable, Flange Thickness Not Applicable. This item has been restricted from sale in the following state (s): []