The Timken Company 99550 Tapered Roller Bearing Cone

The Timken 99550 is a single tapered roller bearing cone with a 5.500-inch bore, designed to support combined radial and axial loads in heavy-duty industrial equipment, delivering alignment precision and long service life in demanding environments. It is intended to be paired with the Timken 99100 bearing cup to provide precise shaft positioning, high load capacity, and extended service life under challenging operating conditions. Key specifications include bore 5.5000 in, inner ring width 2.6250 in, weight 66.21 lb; dynamic radial load rating (C1) 148,000 lbf, dynamic radial load rating (C90) 38,500 lbf, dynamic axial load rating (Ca90) 26,800 lbf, and static radial load rating (C0) 231,000 lbf. It is part of the 99000 Series, designed as a TS – Tapered Single cone, and is compatible with Timken 99100. Typical applications include rolling mills, mining equipment, crushers, heavy industrial gearboxes, conveyors, steel processing equipment, and other high-capacity rotating machinery.