Tapered Roller Bearing Cup Bore Diameter 5 15/64 in Compatible Cone Grainger Part Number 1YTY1 Compatible Cone Manufacturer Part Number HM218248 Cup Width 1.28 in Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Outside Diameter 5 25/32 in Overall Width 1.28 in Ring Material Alloy Steel System of Measurement Inch ABMA Rating Class 0 Application Forestry Mining Steel Manufacturing Housing Fillet Radius 3.5 mm Ring Material Grade 52100 Standards ABMA