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