Timken 397/394A Single Row Tapered Roller Bearing Set

Timken 397/394A is a single-row tapered roller bearing set designed for heavy-duty power transmission, delivering reliable support for combined radial and axial loads in industrial gearboxes, conveyor systems, mining and construction equipment. The assembly uses cone 397 and cup 394A, with an imperial bore of 2.3622 in (60.000 mm), outside diameter of 4.3307 in (110.000 mm), and overall width of 0.8661 in (21.999 mm) (cone 0.8660 in, cup 0.7411 in) and a stamped steel cage. It carries dynamic radial load 22,200 lbf (98,900 N), static radial load 28,100 lbf (125,000 N), and dynamic thrust load Ca90 of 3,970 lbf (17,600 N), and weighs 2.0 lb (0.9 kg). Common replacements include SKF 397/394A, NTN 397/394A, and KOYO 397/394A.