The Timken Company 18690-90060 Tapered Roller Bearing

The Timken 18690-90060 precision tapered roller bearing assembly delivers high-accuracy rotational support for equipment that carries both radial and axial loads in demanding industrial settings. This factory-matched assembly pairs the Timken 18690 bearing cone with the Timken 18620 bearing cup, designed as a single-row precision TS-type bearing. Key dimensions include bore 1.8125 in (46.038 mm), outside diameter 3.1250 in (79.375 mm), overall width 0.6875 in (17.463 mm), with cone width 0.6875 in and cup width 0.5313 in. Dynamic radial load rating 11,700 lbf (52,000 N), static radial load rating 13,800 lbf (61,300 N), and dynamic axial load rating 1,940 lbf (8,630 N); it uses a pressed-steel cage and is intended for precision machine tools, precision gearboxes, spindles, rolling mills, and other rotating machinery where accurate shaft positioning and long bearing life are essential. Common replacements include SKF 18690/18620, NTN 18690/18620, and KOYO 18690/18620.