The Timken Company 29520 Tapered Roller Bearing Cup

The Timken 29520 tapered roller bearing cup is a single-row tapered roller bearing outer race (cup) designed to be paired with a compatible Timken cone to support combined radial and axial loads. It is commonly installed in industrial gearboxes, conveyor systems, mining machinery, agricultural equipment, wheel hubs, and heavy-duty power transmission systems that require precise shaft alignment and high load capacity. Engineered to operate with Timken cones such as 29585 and 29590, the cup provides accurate shaft positioning and reliable performance under mixed radial and thrust loads, with a separable cup design that simplifies installation and maintenance. Key specifications include outside diameter 4.2500 in (107.95 mm), cup width 0.7500 in (19.050 mm), maximum housing fillet radius 0.130 in (3.30 mm), and housing backing shoulder diameters Da 4.09 in (103.89 mm) and Db 3.78 in (96.01 mm), along with Geometry Factor Cg 0.111, e Factor 0.46, and Y Factor 1.31; weight 1.9 lb (0.8 kg). Compatible bearing cones include Timken 29585, 29590, and other 29500-series cones depending on the application. This cup functions to support combined radial and axial loads when used with a compatible Timken cone, making it suitable for industrial gearboxes, axle assemblies, machine tools, mining equipment, agricultural machinery, and material handling systems in demanding environments, and it is compatible with common replacements such as SKF 29520 and NTN 29520 where applicable.