TimkenImperial Tapered Roller Bearing Cup / Outer Race, 6.7500 in / 171.450 mm OD x 0.9948 in Wide, Plain Single Cup – 1 Pc

Product Description

What this part is

This is an imperial tapered roller bearing cup — the outer race only. There are no rollers, no cage and no inner ring in this part. A cup is one half of a tapered roller bearing; it presses into the housing bore and the mating cone (inner ring with rollers) is a separate part number that is not included here.

Decoding the designation

67675 is a Timken imperial single-cup number in the 676xx / 674xx family. It is a plain, unflanged single cup — Timken type TS. It is not a flanged cup (which would carry a TSF designation) and it is not a double cup for two-row mounting. Its published mating cones are 67425, 67434 and 67437; 67425 gives a 4.2500 in / 107.95 mm shaft bore.

Published dimensions and mounting data

Cup outside diameter (D): 6.7500 in / 171.450 mm
Cup width (C): 0.9948 in / 25.268 mm
Housing backing shoulder diameter (Da): 6.48 in / 164.10 mm
Housing backing shoulder diameter (Db): 6.14 in / 155.96 mm
Maximum housing fillet radius cleared: 0.130 in / 3.30 mm
e factor: 0.47 · Y factor: 1.27 · geometry factor Cg: 0.0987
Weight: 5.3 lb / 2.40 kg

Timken publishes load ratings against the cone, because a rating only exists for a cone-and-cup pair. No dynamic or static rating is quoted here, because a rating for the assembly would be misleading on a cup-only listing.

What these specs mean in practice

The e and Y factors are what you actually need when you size this bearing. e = 0.47 is the axial-to-radial load ratio at which the calculation switches formulas: below that ratio the radial load governs, above it the thrust term takes over with Y = 1.27 applied. Those two numbers belong to the cup and cone as a pair, so they are valid for 67675 running against any of its listed cones. The Da and Db figures matter at fitting time — the housing shoulder must land on the cup ring face, not overhang into the raceway.

Quantity and configuration

This listing ships 1 Pc — one 67675 cup. No cone, no rollers, no seal, no spacer.

Fitting notes

The cup presses into the housing from the back face; drive only on the thick outer rim with a flat-faced driver or press ring that spans the full ring, and never on the raceway lip. Seat it fully against the shoulder before any bearing setting is attempted — a cup that is 0.010 in short of its shoulder will show up as end play you then wrongly try to remove with the adjusting nut. Tapered roller bearings have no clearance until they are mounted, so end play or preload is set after both cups are home.

Interchange guidance

67675 is a standardised imperial cup number, so 67675 cups from Timken, Bower/BCA, Koyo, NTN and Federal-Mogul share the same envelope and interchange with one another. Buy the cone to match the shaft: 67425 for a 4.2500 in bore, or 67434 / 67437 for the larger bores in the family. Other 676xx cups are related sizes, not equivalents — they differ in outside diameter or width and will not seat in a housing bored for 6.7500 in.