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Used Caterpillar Wheel Shaft

177 produits disponibles

A wheel that no longer drives while the axle rotates, a sharp knock under load start-up: on a wheel loader, dump truck, or wheeled excavator Caterpillar , the wheel shaft is often the culprit. Codimatra dismantles Caterpillar construction machines and resells their original wheel shafts, workshop inspected, with details on the donor machine and axle position. Our complete range is available on our wheel shaft page for all brands.

Caterpillar Half Wheel Shaft: From Differential to Reducer

In a Caterpillar axle, the wheel shaft connects the differential's planetary gearset to the wheel reducer. It spins at high speed and transmits the full torque from one side of the axle, with spikes occurring during each load attack or slope exit. Its splines, at both ends, wear over time and eventually develop play. A bent or cracked shaft at the spline groove typically breaks cleanly, often under full load.

Caterpillar Wheel Shafts in Stock by Machine

  • Wheel Loaders: from 906 to 988B, our most represented family.
  • Dump Trucks: articulated and rigid types, detailed below.
  • Wheeled Excavators: M312 to M322C, front and rear axles.
  • Other Machines: 120H VHP motor grader, 826G compactor, IT14G and IT28B tool carriers.
  • Backhoe Loaders and Telescopics: 428, 432E, TH220B, and TH330B.

Driveshaft of Wheeled Excavators M312 to M322C

On Caterpillar wheeled excavators M312, M313D, M315, M316C, M318, M318C, M318D, M320, M320F and M322C, the front axle is steerable. The wheel shaft includes a universal joint at the Caterpillar spindle to transmit torque to the steered wheels. The rear wheel shaft, mounted on the fixed axle, remains a straight shaft. This joint wears faster than a straight shaft, especially on machines frequently turning. Our Caterpillar driveshaft page lists all available cross joints and driveshafts.

Wheel Loaders, Dump Trucks and Other Models Covered

  • Small and Medium Wheel Loaders: 906, 906H, 924G, 928F, 936, 950B, 950F II, 950G, and 950K.
  • Large Wheel Loaders: 966C, 966E, 966F, 970F, 980C, 980F, 980G, 980G II, 980H, 980K, 980M, and 988B.
  • Articulated Dump Trucks: 725, 730, 735, 735B, and D250D.
  • Rigid Dump Trucks: 769C, 770, 771D, 772, and 775B.
  • Various Public Works Equipment: D5H bulldozer and 826G compactor, depending on arrivals.

Wheel Shaft vs Driveshaft: Key Differences

The wheel shaft operates inside the axle housing, bathed in oil. The Caterpillar driveshaft is external: it connects the gearbox or transfer case to the axle input, with its cross joints and tube. These parts are ordered separately, with different references and webpages. For external shaft lines, see our Caterpillar driveshaft page.

Points to Check on Front and Rear Wheel Shafts

  • Splines: wear resembling a stepped pattern, play in the planetary or reducer gears.
  • Straightness: a bent shaft causes axle vibrations and bearing wear.
  • Cracks: inspect spline grooves and diameter transitions carefully.
  • Dimensions: total length and spline count at each end.
  • Position: front or rear wheel shaft, left or right side, axle version.

Removing a Wheel Shaft from a Caterpillar Machine

Removal involves opening the wheel reducer or hub, depending on the axle. Take the opportunity to inspect the wheel hub, bearings, and the Caterpillar wheel reducer, whose teeth suffer damage when the shaft breaks. Replace seals, drain axle oil, and remove any metal particles. If the shaft broke on the differential side, have the axle nose inspected as well.

Codimatra: Used Caterpillar Parts and Construction Equipment Components

  • Over 40 years of dismantling public works machinery experience.
  • Around 17,000 references in stock, all brands included.
  • Workshop inspection: splines, straightness, bearing seats.
  • Expert advice from specialized technicians to help locate the correct shaft for your axle version.
  • Shipping from Castelculier, near Agen. Quotes at 05 53 96 16 43.

Depending on manufacturers and workshops, the part is called half shaft, axle shaft, planetary shaft, or half driveshaft. All terms refer to the part connecting the differential to the hub or wheel reducer. On a steerable axle, the shaft includes a universal joint and is sometimes called a driveshaft.

The driveshaft transmits rotation from the gearbox or transfer case to the axles. Its cross joints absorb angle variations, and its sliding part compensates for length changes during articulation or axle oscillation. Without it, the engine's torque would not reach the wheels.

On a construction machine, a wheel consists of the tire, rim with its mounting studs, and a hub mounted on bearings. Behind, there is the often planetary wheel reducer, the wheel shaft driving it, and on many axles, the brake. Each component wears at its own pace and is inspected during disassembly.

The clearest sign is a wheel that no longer transmits drive while the other side turns normally. A metallic knock, metal particles in the axle oil, or a freely spinning wheel with the machine stalled confirm the diagnosis. Opening the reducer then shows where the shaft has broken.

It is recommended when the shaft has broken or developed play: hub and reducer bearings have endured the same shocks. Also check seals, as dust ingress might have occurred. Installing a new shaft on worn bearings significantly reduces service life.

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