Tapered Roller Bearing Cup Bore Diameter 7 35/64 in Compatible Cone Grainger Part Number 55PY56 Compatible Cone Manufacturer Part Number HH224334 HH224335 HH224346 Cup Width 2.125 in Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Outside Diameter 8 3/8 in Overall Width 2.125 in Ring Material Alloy Steel System of Measurement Inch ABMA Rating Class 0 Application Forestry Mining Steel Manufacturing Housing Fillet Radius 3.3 mm Ring Material Grade 52100