Radial Ball Bearing Bearing Industry Number 61806 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