Overview
The ZF 2093.078.007 T 7226 L is an OEM genuine internal component engineered for heavy-duty construction machinery transmissions. This precision-machined part functions as a critical load-bearing element within the planetary gearset, ensuring smooth torque distribution and alignment under extreme operational stress. Designated by SKU 2093.078.007, it integrates directly into the ZF T 7226 L series, working in concert with the 5838109009: DIFFERENTIAL to manage rotational forces. Its placement within the transmission housing allows it to stabilize shaft endplay and maintain consistent gear mesh, directly impacting driveline efficiency in wheel loaders, graders, and dump trucks.
Symptoms of Failure
- Intermittent gear slipping under load: When this component wears, the transmission may momentarily lose torque transfer during heavy excavation, often misdiagnosed as a clutch issue.
- Low-frequency humming or grinding from the differential area: A worn 2093.078.007 part creates metal-on-metal contact, producing a distinct noise that intensifies during turns.
- Metallic debris in transmission fluid: Advanced degradation sheds fine steel particles into the oil, which can clog filters and accelerate wear on the 0750117075: TAPER ROLLER BEARING.
- Oil seepage near the output shaft seal: Internal pressure from misalignment forces fluid past seals, leaving visible residue on the housing exterior.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.078.007 |
| OEM Reference | ZF T 7226 L |
| Material | Case-hardened alloy steel (20MnCr5) |
| Outer Diameter | 142 mm |
| Inner Diameter | 85 mm |
| Width/Height | 38 mm |
| Weight | 1.85 kg |
| Hardness | 58–62 HRC |
| Surface Finish | Ground, Ra ≤ 0.8 µm |
Compatibility
This genuine ZF part is designed for the T 7226 L transmission family, which powers a range of construction machinery. It is directly compatible with ZF WG180, WG200, and WG310 series transaxles commonly found in Volvo, Caterpillar, and Komatsu equipment. The component also interfaces with the 2093209023: DIFFERENTIAL assembly and requires precise alignment with the 5838300626: DIFFERENTIAL HOUSING to ensure correct preload. Always verify your transmission model tag before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109009 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads |
| 2093209023 | DIFFERENTIAL | Secondary torque split unit |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses and supports gear sets |
| 0631329088 | SPRING PIN | Secures alignment of internal components |
| 5838300811 | THRUST WASHER | Reduces axial friction between rotating parts |
| 5838300721 | AXLE BEVEL GEAR | Transfers power at right angles |
| 5838300633 | AXLE | Transmits rotational force to wheels |
| 5838300753 | THRUST WASHER | Controls side clearance in differential |
| 5838300818 | THRUST WASHER | Prevents gear face scoring |
Frequently Asked Questions
Q: Can I install the 2093.078.007 without replacing the taper roller bearing?
A: It is strongly recommended to replace the 0750117075: TAPER ROLLER BEARING simultaneously, as worn bearings alter the preload and can cause premature failure of the new part.
Q: How do I confirm this part fits my ZF WG200 transmission?
A: Check the transmission serial plate for “T 7226 L” designation. The 2093.078.007 is a direct OEM fit for WG200 and WG180 models, but always measure the inner diameter (85 mm) to verify compatibility with your differential housing.
Q: What causes this component to fail in construction machinery?
A: The primary failure mode is shock loading from sudden direction changes in loaders or graders. Contaminated hydraulic oil and improper shimming of the 5838300626: DIFFERENTIAL HOUSING also accelerate wear significantly.
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Phone: +86 158 2286 3467 |
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