Radial Ball Bearing, Bearing Industry Number 6008, Bore Diameter 40 mm, Closure Double Sealed, For Environment Oily/Greasy, Outer Ring Width 15 mm, Outside Diameter 68 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/-0.012 mm, Dynamic Radial Load Capacity 3,750 lbf, Includes Retaining Ring No, Lubricant Material Polyrex EM