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 Cage Type Crown Dynamic Radial Load Capacity 121.6276 lbf Extended Inner Ring Yes Extended Inner Ring Width 0.187 in Fillet Radius 0.0059 in Finish Chrome Plated Flange Type Non-Flanged Includes Retaining Ring No Lubricant Material Grease