Radial Ball Bearing, Bearing Industry Number 6211, Bore Diameter 55 mm, Closure Open, Outer Ring Width 21 mm, Outside Diameter 100 mm, Ring Material Alloy Steel, System of Measurement Metric, Cage Material Steel, ABEC Rating 1, Ball Material Alloy Steel, Bore Diameter Tolerance +0/-0.010 mm, Cage Type Pressed, Dynamic Radial Load Capacity 48,000 N, Fillet Radius 1.5 mm, Finish Chrome Plated, Includes Retaining Ring No, ISO Rating Class 0, Lubricant Material Not Available