Timken 08231 Tapered Roller Bearing Cup Outer Race

The Timken 08231 is a precision outer race for a single-row tapered roller bearing (TS) that carries combined radial and axial loads in industrial and mobile equipment. Part of Timken's 08000 series, it is designed to pair with the Timken 08125 bearing cone in TS assemblies and is commonly used in automotive wheel hubs, agricultural machinery, industrial gearboxes, conveyors, and general power transmission equipment where reliable load distribution matters. Crafted from through-hardened chrome steel with ABMA Class 2 (standard) precision, the cup has an outside diameter of 2.3125 in (58.738 mm), a cup width of 0.4219 in (10.716 mm), and a weight of 0.40 lb (0.20 kg). Key seating dimensions include a maximum housing fillet radius of 0.040 in (1.02 mm) and housing backing shoulder diameters Da 2.20 in (55.88 mm) frontface and Db 2.05 in (52.07 mm) backface, ensuring compatibility with the corresponding cone and proper fit in assemblies.