Tapered Roller Bearing Assembly Bearing Industry Number 30303 Bore Diameter 17 mm Bore Type Cylindrical Cage Material Pressed Steel Cone Width 14 mm Cup Width 12 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 47 mm Overall Width 15.25 mm Ring Material Carbon Steel Roller Material Carbon Steel System of Measurement Metric