Radial Ball Bearing Bearing Industry Number 61905 Bore Diameter 25 mm Closure Double Shielded For Environment Oily/Greasy Outer Ring Width 9 mm Outside Diameter 42 mm Ring Material Alloy Steel 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 1 590 lbf Includes Retaining Ring No Lubricant Material Polyrex EM