Miniature Ball Bearing Bearing Industry Number R166 Bore Diameter 3/16 in Closure Double Shielded Outer Ring Width 0.125 in Outside Diameter 3/8 in Ring Material Stainless Steel System of Measurement Inch Cage Material Steel Cage Type Ribbon Dynamic Radial Load Capacity 159.8471 lbf Fillet Radius 0.0039 in Finish Chrome Plated Flange Diameter 0.422 in Flange Thickness 0.031 in Flange Type Flanged Includes Retaining Ring No Lubricant Material Grease