Radial Ball Bearing Bearing Industry Number 6004 Bore Diameter 20 mm Closure Open For Environment Oily/Greasy Outer Ring Width 12 mm Outside Diameter 42 mm Ring Material Alloy Steel System of Measurement Metric Cage Material Steel ABEC Rating 1 Ball Material Alloy Steel Ball Material Grade AISI 52100 Bore Diameter Tolerance +0/-0.1 mm Dynamic Radial Load Capacity 2 110 lbf Includes Retaining Ring No