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