Self-Aligning Ball Bearing, Bearing Industry Number 1209, Bore Diameter 45 mm, Outside Diameter 85 mm, Outer Ring Width 19 mm, Ring Material Alloy Steel, Bore Type Tapered 1:12, Closure Open, Cage Material , System of Measurement Metric, ABEC Rating 1, Ball Material Alloy Steel, Ball Material Grade 100Cr6, Bore Diameter Tolerance +0/-0.012 mm, Dynamic Radial Load Capacity 22.9 kN, Fillet Radius 1 mm, Lubricant Material Alvania Grease, Maximum Axial Load 576 lbf