Tapered Roller Bearing Cone Bearing Industry Number HM212047 Bore Diameter 2 1/2 in Bore Type Cylindrical Cage Material Pressed Steel Compatible Cup Grainger Part Number 1YTX9 Compatible Cup Manufacturer Part Number HM 212011 HM212010 Cone Width 1.51 in Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Number of Rows One Outside Diameter 4.567 in Ring Material Alloy Steel Roller Material Alloy Steel System of Measurement Inch