Timken33225-90067Two-Row Tapered Roller Bearing Assembly (TDO) – 2.2500 in Straight Bore, 4.6250 in Outside Diameter, Class 3, Double Cup with Two Cones and a Ground Cone Spacer

Product Description

What this part is

Timken 33225-90067 two-row tapered roller bearing assembly, 2.2500 in bore, 4.6250 in outside diameter, Class 3 precision. The assembly comprises two 33225 cones, one 33462D double cup and one X1S-33225 cone spacer, supplied together as a matched set.

Decoding the designation

The –90067 suffix is a Timken assembly number: it identifies a complete, matched, factory-set bearing rather than a single component. 33225 is the cone number and 33462 the cup number in the 33000 imperial series. The D on 33462D marks a one-piece double cup, which carries two raceways and therefore takes two cones. X1S is the Timken prefix for a cone spacer, and the spacer width is ground to set the assembly.

What these specs mean in practice

A double-cup, two-cone arrangement mounts indirectly, so the two contact lines converge outside the bearing. That gives a short effective spread and high radial capacity in a compact width, and it takes thrust in both directions. Because the cone spacer is ground to match this particular cup and cone set, the internal setting is established at the factory and reproduced on assembly rather than adjusted at the shaft. Class 3 tolerances tighten bore, outside diameter and running accuracy over standard inch tolerance.

Quantity and configuration

One complete assembly: two cones, one double cup, one cone spacer. Straight bore, open, case-hardened alloy steel with stamped steel cages.

Fitting notes

The cones seat on the shaft on an interference fit with the ground spacer between them, and the double cup is a light interference or transition fit in the housing bore. Maximum shaft fillet radius at the cone backface is 0.14 in, and the cone frontface backing diameter is 2.68 in, which sets the minimum diameter of the abutment or spacer face that bears on the cone. Effective load centre location is –0.11 in from the cone backface. Cage-to-cone clearance is 0.07 in at both faces, so abutting components are kept clear of the cage.

Interchange guidance

The components interchange individually as 33225 cones, a 33462D double cup and an X1S-33225 spacer. A 33225/33462 single-row TS assembly uses the same cone against a plain single cup and is a related configuration rather than a substitution, since it is one row and takes thrust in one direction.