Tapered Roller Bearing Cup Bore Diameter 1 11/16 in Compatible Cone Grainger Part Number 55PX24 Compatible Cone Manufacturer Part Number 21075 Cup Width 0.625 in Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Outside Diameter 2 1/8 in Overall Width 0.625 in Ring Material Alloy Steel System of Measurement Inch Application Forestry Mining Steel Manufacturing Housing Fillet Radius 2.3 mm Ring Material Grade 52100 Standards ABMA Static Load Capacity 39 kN