Radial Ball Bearing Bearing Industry Number 1616 Bore Diameter 1/2 in Closure Double Sealed For Environment Oily/Greasy Outer Ring Width 0.375 in Outside Diameter 1 1/8 in Ring Material Alloy Steel Seal Type Contact System of Measurement Inch Cage Material Steel ABEC Rating 1 Ball Material Alloy Steel Ball Material Grade AISI 52100 Bore Diameter Tolerance +0/-0.0003 in Dynamic Radial Load Capacity 1 047 lbf Includes Retaining Ring No Lubricant Material Polyrex EM