Tapered Roller Bearing Cup Bore Diameter 6 23/32 in Compatible Cone Grainger Part Number 55PY29 Compatible Cone Manufacturer Part Number 71450 71453 Cup Width 1.375 in Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Outside Diameter 7 1/2 in Overall Width 1.375 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