Radial Ball Bearing, Bearing Industry Number 6311, Bore Diameter 55 mm, Closure Double Shielded, Outer Ring Width 29 mm, Outside Diameter 120 mm, Ring Material Alloy Steel, System of Measurement Metric, Cage Material Steel, Ball Material Alloy Steel, Cage Type Pressed, Dynamic Radial Load Capacity 79,500 N, Fillet Radius 2 mm, Finish Chrome Plated, Includes Retaining Ring No, ISO Rating Class 0, Lubricant Material SRI 2