Radial Ball Bearing, Bearing Industry Number 61902, Bore Diameter 15 mm, Closure Double Sealed, For Environment Oily/Greasy, Outer Ring Width 7 mm, Outside Diameter 28 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/-0.008 mm, Dynamic Radial Load Capacity 980 lbf, Includes Retaining Ring No, Lubricant Material Polyrex EM