Miniature Ball Bearing Bearing Industry Number 1634 Bore Diameter 3/4 in Closure Open Outer Ring Width 0.156 in Outside Diameter 1 in Ring Material Stainless Steel System of Measurement Inch Cage Type Open/Unflanged Dynamic Radial Load Capacity 277 lbf Flange Type Non-Flanged Includes Retaining Ring No Lubricant Material Grease