Radial Ball Bearing Bearing Industry Number 6004 Bore Diameter 20 mm Closure Double Shielded Outer Ring Width 12 mm Outside Diameter 42 mm Ring Material Alloy Steel System of Measurement Metric Cage Material Steel ABEC Rating 1 Application Radial and Thrust Load Application Bore Diameter Tolerance +0/-10 micron Dynamic Radial Load Capacity Not Available Includes Retaining Ring No Lubricant Material Grease