Tapered Roller Bearing Cone Bearing Industry Number 2788 Bore Diameter 1 1/2 in Bore Type Cylindrical Cage Material Pressed Steel Compatible Cup Grainger Part Number 55PX33 Compatible Cup Manufacturer Part Number 2720 Cone Width 1.01 in Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Number of Rows One Outside Diameter 2.756 in Ring Material Alloy Steel Roller Material Alloy Steel System of Measurement Inch Bore Diameter Tolerance +0.0000 to -0.0010 in