Timken 55433D Tapered Roller Bearing Assembly

The Timken 55200/55433D TDO bearing assembly is a tapered double outer (TDO) unit that combines one 55433D double cup with two 55200 cones to form a high-load, rigid bearing set for heavy power transmission. This Timken 55000-series, imperial-size double-row design delivers a wide effective bearing spread and is commonly used in industrial gearboxes, rolling mills, mining equipment, construction machinery, paper processing machinery, and heavy-duty conveyors where high radial and thrust loads are encountered. Key specs include bore 2.0000 in (50.800 mm), outside diameter 4.3300 in (109.982 mm), cone width 1.0594 in (26.909 mm), double cup width 1.6876 in (42.865 mm), and overall bearing width 2.4999 in (63.497 mm); dynamic radial load ratings C1 49,400 lbf (220,000 N), C90 7,350 lbf (32,700 N), two-row C90 12,800 lbf (56,900 N), and dynamic axial load rating Ca90 11,100 lbf (49,500 N). The assembly uses a stamped steel cage, with shaft backing shoulder diameter 2.80 in (71 mm) and housing backing shoulder diameter 4.15 in (105.40 mm), and an effective center location of 0.28 in (7.1 mm); MPN is 55200/55433D.