Timken362B-3Flanged Tapered Roller Bearing Cup – 3.5433 in OD, 0.6250 in Width, 3.7268 in Flange OD, Class 3

Product Description

What this part is:

Timken 362B-3 tapered roller bearing flanged cup. This is the outer ring of a Timken TSF single-row inch tapered roller bearing, with a locating flange machined integrally on the outer ring diameter. Outside Diameter: 3.5433 in (90 mm). Overall Width: 0.6250 in. Flange Outside Diameter: 3.7268 in. Flange Width: 0.1875 in. Item Weight: 0.7 kg (1.5 lb). Precision Class: Class 3. Series: 365. Base Number: 362. Rolling Elements: Tapered Roller. Number Of Rows: 1. Bearing Material: case-carburized alloy steel. Design Units: Imperial.

Decoding the designation:

362 — the base cup number in Timken’s inch 365 series, a 3.5433 in outside diameter outer ring.

B — flanged outer ring. The flange is machined on the cup outside diameter and sets axial position directly against the housing face.

-3 — Precision Class 3, also written *3 and #3. A tighter tolerance than standard, giving lower running vibration and closer location of the shaft.

What these specs mean in practice:

e Factor: 0.32. K Factor: 1.83. Y Factor: 1.88. The K factor is the ratio of radial to thrust capability for the mounted pair: at 1.83 this is a shallow-angle cup, weighted toward radial load, and it suits a position where thrust is the secondary duty. The e factor of 0.32 is the thrust-to-radial load ratio above which the thrust component starts to govern the equivalent load calculation.

Class 3 precision tightens the outside diameter tolerance and the raceway running accuracy against a standard cup, which shows up as lower vibration at speed and a more repeatable fit in the housing bore.

Mounting data:

Maximum Housing Fillet Radius: 0.03 in (0.8 mm) — the largest fillet the housing shoulder may carry and still be cleared by the cup corner. Housing Backing Shoulder Diameter (Da): 3.40 in. Geometry Factor (Cg): 0.0773, used in the lubrication life adjustment factor a3l. The flange seats against the housing face in a through-bored housing, so the bore needs no internal shoulder and seal alignment is set by the flange.

Quantity and configuration:

Unit Quantity: 1 Pc. Cup only. The matching cones are the Timken 366 and 368-S.

Interchange guidance:

The flange is a Timken TSF feature and its diameter and width are particular to this execution, so a 362-B is specified by the Timken number. The equivalent outer ring without the flange is the Timken 362.