Radial Ball Bearing Bearing Industry Number 1641 Bore Diameter 1 in Closure Double Shielded For Environment Oily/Greasy Outer Ring Width 0.562 in Outside Diameter 2 in Ring Material Alloy Steel System of Measurement Inch Cage Material Steel ABEC Rating 1 Ball Material Alloy Steel Ball Material Grade AISI 52100 Bore Diameter Tolerance +0/-0.0004 in Dynamic Radial Load Capacity 3 150 lbf Includes Retaining Ring No Lubricant Material Polyrex EM