Tapered Roller Bearing Cone Bearing Industry Number HM518445 Bore Diameter 3 1/2 in Bore Type Cylindrical Cage Material Pressed Steel Compatible Cup Grainger Part Number 1YTY4 Compatible Cup Manufacturer Part Number HM518410 Cone Width 1.562 in Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Number of Rows One Outside Diameter 5.787 in Ring Material Alloy Steel Roller Material Alloy Steel System of Measurement Inch Dynamic Load Capacity 271 kN