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, ABEC Rating 1, Cage Type Shielded, Dynamic Radial Load Capacity 90 lbf, Flange Diameter Not Applicable, Flange Thickness Not Applicable, Flange Type Non-Flanged, Includes Retaining Ring No, Lubricant Material Multitemp Grease