Tapered Roller Bearing Cup Bore Diameter Not Applicable Compatible Cone Manufacturer Part Number 39573 39575 39578 39580 39581 39585 39585A 39586 39589 39590 39590A 39591 Cup Width 0.937 in For Cone Width 1.187 in Lubricant Material Not Applicable Outside Diameter 4 7/16 in Overall Width 0.937 in Ring Material Alloy Steel System of Measurement Inch Housing Fillet Radius 0.03 in