Miniature Ball Bearing Bearing Industry Number 1810 Bore Diameter 5/16 in Closure Double Shielded Outer Ring Width 0.156 in Outside Diameter 1/2 in Ring Material Stainless Steel System of Measurement Inch Cage Material Steel ABEC Rating 3 Cage Type Crown Dynamic Radial Load Capacity 121.6276 lbf Extended Inner Ring Yes Extended Inner Ring Width 0.156 in Fillet Radius 0.0059 in Finish Chrome Plated Flange Type Non-Flanged Includes Retaining Ring No Lubricant Material Oil