Tapered Roller Bearing Cup Bore Diameter Not Applicable Compatible Cone Manufacturer Part Number 390 390A 392 395 397 399A 399AS Cup Width 0.741 in For Cone Width 0.866 in Lubricant Material Not Applicable Outside Diameter 4 21/64 in Overall Width 0.741 in Ring Material Alloy Steel System of Measurement Inch Housing Fillet Radius 0.13 in