Timken JHM840449 Tapered Roller Bearing Cone

Timken JHM840449 Z12 is a precision single-cone (inner ring) tapered roller bearing cone designed to support high combined radial and axial loads in demanding industrial rotating equipment. It pairs with Timken JHM840410 tapered roller bearing cup to form a matched two-piece set and is commonly used in industrial gearboxes, conveyors, mining and aggregate equipment, construction machinery, and agricultural machinery where accurate shaft support and long service life matter. Key specifications include a 200 mm bore (ID) and a 62 mm inner ring width (B), a stamped steel cage, and high-grade bearing steel construction; dynamic radial load rating of 695,000 N (156,000 lbf), static radial load rating of 1,280,000 N (287,000 lbf), and dynamic axial load rating (Ca90) of 161,000 N (36,200 lbf). Maximum shaft fillet radius is 3.56 mm, and the bearing cone weighs 15.3 kg (33.8 lb). The design is part of Timken’s JHM840400 TS series, with the Z12 suffix indicating a specific production variation while maintaining compatibility with the matching cup.