Miniature Ball Bearing Bearing Industry Number 1212 Bore Diameter 1/2 in Closure Double Shielded Outer Ring Width 0.156 in Outside Diameter 3/4 in Ring Material Stainless Steel System of Measurement Inch ABEC Rating 3 Cage Type Shielded/Unflanged Dynamic Radial Load Capacity 81 lbf Flange Type Non-Flanged Includes Retaining Ring No Lubricant Material Grease