Tapered Roller Bearing Cup Bore Diameter 4 43/64 in Compatible Cone Grainger Part Number 1YTX2 Compatible Cone Manufacturer Part Number 47678 47681 47686 Cup Width 1.031 in Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Outside Diameter 5 1/4 in Overall Width 1.031 in Ring Material Alloy Steel System of Measurement Inch Application Forestry Mining Steel Manufacturing Housing Fillet Radius 3.3 mm Ring Material Grade 52100 Standards ABMA