Tapered Roller Bearing Cone Bearing Industry Number 45290 Bore Diameter 2 1/4 in Bore Type Tapered Cage Material Chrome Steel Compatible Cup Manufacturer Part Number 45220 45221 Cone Width 1.218 in Lubricant Material Not Applicable Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Number of Rows One Outside Diameter 3.66 in Ring Material Carbon Steel Roller Material Carbon Steel System of Measurement Inch Dynamic Load Capacity 31 500 lbf