Self-Aligning Ball Bearing, Bearing Industry Number 1211, Bore Diameter 55 mm, Outside Diameter 100 mm, Outer Ring Width 21 mm, Ring Material Alloy Steel, Bore Type Cylindrical, Closure Open, Cage Material , System of Measurement Metric, ABEC Rating 1, Ball Material Alloy Steel, Ball Material Grade 100Cr6, Bore Diameter Tolerance +0/-0.015 mm, Dynamic Radial Load Capacity 27.6 kN, Fillet Radius 1 mm, Lubricant Material Alvania Grease, Maximum Axial Load 778 lbf