Tapered Roller Bearing Cup Bore Diameter 2 23/64 in Compatible Cone Grainger Part Number 1YTW1 Compatible Cone Manufacturer Part Number HM88648 HM88649 Cup Width 0.781 in Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Outside Diameter 2 27/32 in Overall Width 0.781 in Ring Material Alloy Steel System of Measurement Inch Application Forestry Mining Steel Manufacturing Housing Fillet Radius 0.091 in Ring Material Grade 52100 Standards ABMA