DodgeF4B-LT10-108Four-Bolt Flange Sleeve Bearing Unit – 1-1/2 in Shaft, Cast Iron, Self-Lubricated Bronze Journal

Product Description

What this part is:

Dodge F4B-LT10-108 mounted sleeve bearing unit, Dodge part number 033209. Bearing type: Mounted journal (sleeve) bearing. Housing Style: Four-bolt flange, cast iron. Bore / Shaft Size: 1-1/2 in. Rolling Elements: None — a plain journal sleeve carries the shaft on a hydrodynamic film. Material: Graphite-plugged bronze sleeve in a cast iron housing. Relubrication: Self-lubricated, graphite insert. Item weight: 3.57 lb.

Decoding the designation:

F4B — four-bolt flange housing. The square four-bolt pattern resists overhung and reversing loads better than a two-bolt flange and mounts against a vertical face with the shaft passing through it.

LT — Dodge Solidlube sleeve. The bronze journal carries graphite plugs that release lubricant as the shaft turns, so the unit runs without a grease schedule.

10 — the LT sleeve size series that fixes the journal envelope and the take-up frame it fits.

108 — the 1-1/2 in shaft size within the LT10 series.

033209 — Dodge stock number for this exact build. It is the number distributors order against.

Housing style and bolt pattern:

Housing Style: Four-bolt flange, cast iron, one-piece solid construction, powder coated. Bolt Center To Center Length: 3.63 in. Mounting bolt diameter: 1/2 in. The unit bolts to a vertical face with the shaft running perpendicular to that face.

What these specs mean in practice:

Bore / Shaft Size: 1-1/2 in. Journal bore length: 1.75 in. Limiting Speed: 1300 rpm. Expansion Type: Expansion (float) — the sleeve is free to move axially in the housing, so this position absorbs shaft growth and the opposite bearing sets the axial location. A graphite-plugged bronze journal suits slow, heavily loaded and high-temperature service where a grease-lubricated rolling element would be at its limit, and it runs in dusty conditions that would cut the life of a sealed ball unit.

Relubrication: Self-lubricated. Lubricant is released from the graphite plugs in the bronze, so there is no grease fitting and no relubrication interval.

Mounting data:

Bolt Center To Center Length: 3.63 in (92.2 mm). Bolt hole diameter: 1/2 in. Bore length through the sleeve: 1.75 in. Matching take-up frame size: LD-20. Item weight: 3.57 lb.

Quantity and configuration:

Unit Quantity: 1 Pc. One complete flange unit, housing and graphite-plugged bronze sleeve assembled, per unit.

Interchange guidance:

MPN Variants: F4B-LT10-108, F4BLT10108, F4B LT10 108, 033209. The LT10 series covers several shaft sizes on a common frame; the 108 suffix is what fixes the 1-1/2 in shaft. Ball-bearing four-bolt flanges of the same shaft size, such as the F4B-SC-108, share the flange family but carry a rolling element rather than a journal sleeve.