The Timken Company 344A Tapered Roller Bearing Cone

The Timken 344A tapered roller bearing cone is the inner cone of a single-row tapered bearing designed to take combined radial and axial loads when paired with the compatible Timken 332A cup. As part of the 335 Series, its separable cone design simplifies installation and maintenance and it is commonly used in wheel hubs, industrial gearboxes, conveyors, agricultural equipment, trailers, and other heavy‑duty rotating systems. Specifications include a bore diameter of 1.5748 in (40.000 mm) and a cone width of 0.8820 in (22.403 mm); it uses a stamped steel cage and through-hardened bearing steel raceways, with an approximate weight of 0.50 kg (1.1 lb). Dynamic radial load rating (C1) is 94,300 N (21,200 lbf) and static radial load rating (C0) is 83,400 N (18,700 lbf), with dynamic axial load rating (Ca90) of 11,400 N (2,570 lbf); the bearing is designed to work with Timken 332A cups to form a complete assembly for heavy-duty rotating equipment.