Tapered Roller Bearing Assembly Bearing Industry Number 30228 Bore Diameter 140 mm Bore Type Cylindrical Cage Material Pressed Steel Cone Width 42 mm Cup Width 36 mm Flange Diameter Not Applicable Flange Type Non-Flanged Lubricant Material Not Applicable Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Number of Rows One Outside Diameter 250 mm Overall Width 45.75 mm Ring Material Carbon Steel Roller Material Steel System of Measurement Metric