Tapered Roller Bearing Cup Bore Diameter 4 43/64 in Compatible Cone Grainger Part Number 55PY15 Compatible Cone Manufacturer Part Number 5760 Cup Width 1.375 in Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Outside Diameter 5 11/32 in Overall Width 1.375 in Ring Material Alloy Steel System of Measurement Inch Application Forestry Mining Steel Manufacturing Bore Diameter Tolerance +0 to 0.013 mm Housing Fillet Radius 0.13 in Ring Material Grade 52100