Radial Ball Bearing Bearing Industry Number 1658 Bore Diameter 1 5/16 in Closure Double Shielded For Environment Oily/Greasy Outer Ring Width 0.687 in Outside Diameter 2 9/16 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/-0.00045 in Dynamic Radial Load Capacity 3 369 lbf Includes Retaining Ring No Lubricant Material Polyrex EM