Tapered Roller Bearing Cup Bore Diameter 6 13/32 in Compatible Cone Grainger Part Number 55PY58 Compatible Cone Manufacturer Part Number HH421246 Cup Width 2.062 in Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Outside Diameter 7 1/4 in Overall Width 1.375 in Ring Material Alloy Steel System of Measurement Inch ABMA Rating Class 0 Application Forestry Mining Steel Manufacturing Housing Fillet Radius 0.13 in Ring Material Grade 52100 Standards ABMA