Tapered Roller Bearing Cone, Bearing Industry Number 13687, Bore Diameter 1 1/2 in, Bore Type Cylindrical, Cage Material Pressed Steel, Compatible Cup Grainger Part Number 55PX02, Compatible Cup Manufacturer Part Number 13621, Cone Width 0.75 in, Maximum Temperature 250 Degrees F, Minimum Temperature -40 Degrees F, Number of Rows One, Outside Diameter 2.559 in, Ring Material Alloy Steel, Roller Material Alloy Steel, System of Measurement Inch, Bore Diameter Tolerance +0.0008 to -0.0000 in