Radial Ball Bearing, Bearing Industry Number 6318, Bore Diameter 90 mm, Closure Open, Outer Ring Width 43 mm, Outside Diameter 190 mm, Ring Material Alloy Steel, System of Measurement Metric, Cage Material Steel, ABEC Rating 1, Ball Material Alloy Steel, Bore Diameter Tolerance +0/-0.007 mm, Dynamic Radial Load Capacity 151 kN, Fillet Radius 2.5 mm, Includes Retaining Ring No, Lubricant Material MT47 Grease