Radial Ball Bearing, Bearing Industry Number 6310, Bore Diameter 50 mm, Closure Single Shielded, Outer Ring Width 27 mm, Outside Diameter 110 mm, Ring Material Alloy Steel, System of Measurement Metric, Cage Material Steel, ABEC Rating 1, Ball Material Alloy Steel, Bore Diameter Tolerance +0/- 0.012 mm, Dynamic Radial Load Capacity 20, 800 lbf, Includes Retaining Ring No, Lubricant Material Quaker Ferrocote. This item has been restricted from sale in the following state (s): []