Tapered Roller Bearing Cone, Bearing Industry Number HM88649, Bore Diameter 1 3/8 in, Bore Type Cylindrical, Cage Material Pressed Steel, Compatible Cup Grainger Part Number 1YTW2, Compatible Cup Manufacturer Part Number HM88610PX1, Cone Width 0.875 in, Maximum Temperature 250 Degrees F, Minimum Temperature -40 Degrees F, Number of Rows One, Outside Diameter 2.717 in, Ring Material Alloy Steel, Roller Material Alloy Steel, System of Measurement Inch, Bore Diameter Tolerance +0.0000 to -0.0005 in