TimkenH238110-20024Tapered Roller Bearing Single Cup – 12.2500 in OD, 2.5625 in Width, Series H238100, Case-Carburized Steel.

Product Description

What this part is

Timken H238110 inch tapered roller bearing single cup, the outer race of a TS single-row tapered roller bearing. Brand: Timken. Manufacturer Part Number: H238110. Series: H238100. Base Number: H238110. Outside Diameter: 12.2500 in (311.15 mm). Overall Width: 2.5625 in (65.088 mm). Item Weight: 24.9 kg (54.8 lb). Bearing Material: Case-carburized steel. Rolling Elements: Tapered Roller. Number Of Rows: 1. Closure Type: Open. Unit Quantity: 1 Pc.

Decoding the designation

H238110 — Timken inch cup number. The trailing 10 marks the cup within the H238100 series.

H238100 — the series that groups this cup with its mating cones, so any cone carrying an H238100-series number shares the same raceway angle and roller path.

What these specs mean in practice

e Factor: 0.33. Y Factor: 1.81. These are the load-split factors a designer uses to convert combined radial and thrust load into an equivalent radial load. A 0.33 e value places this cup in a shallow-angle geometry that favours radial capacity, with thrust handled by the opposing row.

Geometry Factor (Cg): 0.122. Cg feeds the lubrication life adjustment factor a3l, which scales calculated bearing life against the oil film achieved at running speed and temperature.

Item Weight: 24.9 kg (54.8 lb). A cup of this mass and 12.2500 in diameter belongs in heavy industrial service — mill stands, gearboxes and large wheel ends.

Mounting data

Max Housing Fillet Radius: 0.250 in (6.35 mm). Housing Backing Shoulder Diameter – Frontface (Da): 11.37 in (288.80 mm). Housing Backing Shoulder Diameter – Backface (Db): 11.02 in (279.91 mm). The cup presses into the housing bore and seats against the shoulder. The fillet figure is the largest corner radius in the housing that the cup corner clears.

Quantity and configuration

Cup only. Unit Quantity: 1 Pc. The matching cones are the Timken H238148 and the Timken H238140.

Interchange guidance

H238110 is an industry-standard inch tapered roller bearing cup number. SKF, FAG, NSK, NTN, Koyo, Bower/BCA and Tyson list the same cup under the same designation. NTN prefixes its case-carburized inch range 4T-, giving 4T-H238110. Raceway angles are matched within a series, so run this cup against an H238100-series cone.

Searchable variants

H238110, H-238110, H 238110, H238110-20024, H238110 20024.