Tapered Roller Bearing Cup Bore Diameter 3 9/64 in Compatible Cone Grainger Part Number 55PY81 Compatible Cone Manufacturer Part Number JM205149 Cup Width 0.906 in Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Outside Diameter 3 17/32 in Overall Width 0.781 in Ring Material Alloy Steel System of Measurement Inch ABMA Rating Class 0 Application Forestry Mining Steel Manufacturing Housing Fillet Radius 0.098 in Ring Material Grade 52100 Standards ABMA