Tapered Roller Bearing Cup Bore Diameter 5 55/64 in Compatible Cone Grainger Part Number 55PY28 Compatible Cone Manufacturer Part Number 681 683 685 687 Cup Width 1.187 in Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Outside Diameter 6 5/8 in Overall Width 1.187 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