Timken 623G50 Tapered Roller Bearing Cone Assembly

The Timken 623G50 Tapered Roller Bearing Cone is a single-row tapered roller bearing cone designed to pair with compatible cups in heavy-duty rotating equipment, providing reliable radial and axial load support. It is commonly used in industrial gearboxes, wheel-end assemblies, industrial drives, conveyors, heavy-duty axles, construction machinery, mining equipment, heavy-duty trailers, and power transmission systems where precise shaft alignment and long bearing life are essential. Key specifications include bore diameter d of 2.2500 in (57.150 mm) and inner ring width B of 1.6250 in (41.275 mm), weight 4.8 lb (2.2 kg), and MPN 623 with factory code G50 (design units: inch). The bearing cone offers dynamic radial load rating C1 of 46,600 lbf (207,000 N), dynamic radial rating C90 of 12,100 lbf (53,800 N), static radial rating C0 of 54,800 lbf (244,000 N), and dynamic axial load rating Ca90 of 6,510 lbf (28,900 N). Additional geometry includes a maximum shaft fillet radius of 0.140 in (3.600 mm) and shaft backing shoulder diameters frontface da 2.600 in (66.000 mm) and backface db 2.830 in (72.000 mm). Design factors e, K, Y are 0.31, 1.86, and 1.91, with a geometry factor Cg of 0.0694. Common replacements include Timken 623A, 623V, and SKF 623.