Radial Ball Bearing Bearing Industry Number 6006 Bore Diameter 30 mm Closure Double Sealed For Environment Oily/Greasy Outer Ring Width 13 mm Outside Diameter 55 mm Ring Material Alloy Steel Seal Type Contact 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 2 970 lbf Includes Retaining Ring No Lubricant Material Polyrex EM