Tapered Roller Bearing Assembly Bearing Industry Number 30211 Bore Diameter 55 mm Bore Type Cylindrical Cage Material Pressed Steel Cone Width 21 mm Cup Width 18 mm Flange Diameter Not Applicable Flange Type Non-Flanged Lubricant Material Not Prelubricated Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Number of Rows One Outside Diameter 100 mm Overall Width 22.75 mm Ring Material Carbon Steel Roller Material Carbon Steel System of Measurement Metric