Tapered Roller Bearing Cup Bore Diameter 3 31/32 in Compatible Cone Grainger Part Number 1YTX4 55PX82 55PX83 Compatible Cone Manufacturer Part Number 39575 39580 39581 39585 39590 Cup Width 0.937 in Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Outside Diameter 4 27/64 in Overall Width 0.937 in Ring Material Alloy Steel System of Measurement Inch Application Forestry Mining Steel Manufacturing Housing Fillet Radius 3.3 mm Ring Material Grade 52100