Overview
The ZF 5838.300.633 AXLE is a critical load-bearing and torque-transferring component within the final drive assembly of heavy-duty construction machinery. This OEM genuine part, identified by SKU 5838.300.633, serves as the primary structural interface between the differential housing and the wheel hub, ensuring precise alignment of the planetary gear set. It directly supports the 5838109012: DIFFERENTIAL and the 2093209023: DIFFERENTIAL unit, maintaining concentric rotation under extreme axial and radial loads. Without this axle, the transmission cannot transfer motive power to the wheels, making it indispensable for loader and grader drivelines.
Symptoms of Failure
- Excessive axle shaft end-play or wobble: When the 5838.300.633 axle wears, operators notice a distinct “clunking” sensation during direction changes, indicating bearing seat degradation.
- Oil seepage at the wheel seal interface: A worn axle surface allows lubricant to bypass the 0750117075: TAPER ROLLER BEARING, leading to visible drips from the hub.
- Abnormal gear whine during loaded operation: Misalignment caused by a fatigued axle forces the 5838300626: DIFFERENTIAL HOUSING to shift, creating a high-pitched metallic noise.
- Vibration in the steering column: A cracked axle shaft transmits harmonic vibrations through the chassis, particularly at low speeds under heavy bucket loads.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 5838.300.633 |
| Material | Forged alloy steel (42CrMo4 equivalent) |
| Overall Length | 485 mm |
| Shaft Diameter (bearing journal) | 75 mm |
| Flange Bolt Pattern | 8 x M16 x 1.5 |
| Weight | 14.2 kg |
| Heat Treatment | Induction hardened to HRC 58-62 |
| Surface Finish | Ground, Ra ≤ 0.8 µm |
Compatibility
This genuine ZF axle is engineered for the WG180, WG200, and WG210 series power shift transmissions commonly found in wheel loaders and telehandlers. It is a direct fit for models using the 5838-series differential housing, including the ZF 4WG-180, 4WG-200, and 5WG-210 variants. The 5838.300.633 axle also integrates with the 0631329088: SPRING PIN for securing the differential cross-shaft. Always verify your transmission serial number against the OEM parts catalog before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque between left and right axles |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on the axle shaft |
| 2093209023 | DIFFERENTIAL | Secondary differential for limited-slip applications |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses the differential gear set |
| 0631329088 | SPRING PIN | Locks differential cross-shaft in position |
| 5838300811 | THRUST WASHER | Controls axial clearance of side gears |
| 5838300721 | AXLE BEVEL GEAR | Transfers power from ring gear to axle shaft |
| 5838300753 | THRUST WASHER | Reduces friction on pinion gear face |
| 5838300818 | THRUST WASHER | Spacer for differential bearing preload |
| 5838300170 | OUTER CLUTCH DISK | Friction element in limited-slip differential |
Frequently Asked Questions
Q: Can the 5838.300.633 axle be used in a ZF WG180 transmission with a non-OEM differential?
A: We strongly recommend using only OEM genuine parts. The axle spline depth and flange thickness are precisely matched to the 5838109012: DIFFERENTIAL. Aftermarket units often have different tolerances that accelerate bearing wear.
Q: What torque specification should I use for the axle flange bolts?
A: For the 8 x M16 bolts securing this axle to the differential housing, the factory specification is 280 Nm ± 10 Nm. Always replace the bolts and use thread locker.
Q: How do I know if my axle shaft is worn beyond service limits?
A: Measure the bearing journal diameter. If it is less than 74.85 mm, or if you detect a groove at the seal contact area, the 5838.300.633 must be replaced immediately to prevent differential failure.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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