Radial Ball Bearing, Bearing Industry Number 61806, 6806, Bore Diameter 30 mm, Closure Double Sealed, For Environment Oily/Greasy, Outer Ring Width 7 mm, Outside Diameter 42 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 1, 060 lbf, Includes Retaining Ring No, Lubricant Material Polyrex EM