The Timken Company 6420 Front Inner Wheel Bearing Race

The Timken 6420 front inner wheel bearing race is a precision tapered roller bearing cup designed for single-row assemblies that support combined radial and axial loads in front-hub applications. Manufactured by Timken (MPN 6420), this product is listed as a Tapered Roller Bearing Cup (Outer Race) with a single-row TS configuration and is designed in inch units. Its dimensions include an outside diameter of 5.8750 in (149.225 mm) and an outer width (C) of 1.7500 in (44.450 mm), with a maximum housing fillet radius of 0.130 in (3.30 mm). Key housing and interface details include Da 5.55 in and Db 5.08 in; the e factor is 0.36, Y factor 1.66, and geometry factor Cg 0.0931. Its weight is 9.2 lb (4.2 kg), and it is compatible with Timken bearing cone 6475. Typical applications span automotive front wheel hubs, heavy-duty trailers, agricultural equipment, industrial gearboxes, and power transmission systems requiring precise load distribution and long bearing life. Common replacements include Timken 6420A, SKF 6420, and NTN 6420.