Inner Ring, Bore Diameter 2 1/4 in, Outside Diameter 2.748 in, Overall Width 1.76 in, Ring Material Alloy Steel, System of Measurement Inch, Bore Diameter Tolerance +0.0000/-0.0006 in, Finish Chrome Plated, Lubrication Openings Oil Holes, Outside Diameter Tolerance +0.0000/-0.0007 in, Ring Material Grade 52100, Standards as 9100, ISO Certified 9001, Mil-B-3990 (SAE as 39901)
Radial Ball Bearing, Bearing Industry Number 63208, Bore Diameter 40 mm, Closure Double Shielded, Outer Ring Width 30.2 mm, Outside Diameter 80 mm, Ring Material Alloy Steel, System of Measurement Metric, Cage Material Steel, ABEC Rating 1, Ball Material Alloy Steel, Bore Diameter Tolerance +0/-0.012 mm, Cage Type Pressed, Dynamic Radial Load Capacity 32,500 N, Fillet Radius 1.1 mm, Finish Chrome Plated, Includes Retaining Ring No, ISO Rating Class 0, Lubricant Material Polyrex EM