Timken342SW-3Tapered Roller Bearing Cone – 1.6880 in Bore, Class 3 Precision, Series 335

Product Description

What this part is:

Timken 342SW-3 single-row tapered roller bearing cone, inch design, series 335. Bore Diameter: 1.6880 in (42.875 mm). Precision Class: Class 3. Rolling Elements: Tapered Roller. Number Of Rows: 1. Bore Type: Straight. Bearing Material: Case-carburized alloy steel. Design Units: Imperial. Unit Quantity: 1 Pc. Harmonization Code: 8482.20.00. Country of Origin: United States.

Decoding the designation:

342 — the cone base number in the Timken 335 inch tapered roller series.

SW — the cone execution this record carries, written on the carton as 342-SW. It runs a 1.6880 in bore, a larger shaft seat than the plain base number.

–3 — Precision Class 3. Tighter tolerance than standard, giving lower running vibration and closer shaft location. Cartons write the same code as 342SW *3 and 342SW #3.

What these specs mean in practice:

A tapered roller bearing splits into a cone assembly that runs on the shaft and a cup that seats in the housing. The tapered raceway lets one bearing carry radial load and one-directional thrust together, and a pair mounted in opposition fixes the axial position of the shaft. Class 3 tolerance holds the bore and the running accuracy closer than standard, which puts the shaft where the drawing says it is and keeps vibration down at speed.

Quantity and configuration:

Cone only, comprising the inner ring, the roller set and the cage as one non-separable assembly. Unit Quantity: 1 Pc. The 342 cone family runs against the Timken 332 and 332A cups.

Interchange guidance:

Base Number: 342. Execution: SW. Precision suffix: -3, equivalent to the *3 and #3 carton forms. Searchable variants of the manufacturer part number: 342SW-3, 342SW*3, 342SW#3, 342-SW *3, 342 SW #3, 342SW.