Overview
The ZF 0730.110.085 WASHER is a precision-engineered OEM genuine component designed to maintain critical axial clearances within heavy-duty construction machinery transmissions. This hardened steel washer sits between rotating gear assemblies and the transmission housing, acting as a load-bearing surface that prevents metal-on-metal contact. As part of the differential assembly, the 0730.110.085 ensures consistent torque distribution and reduces friction during high-load operations. When paired with the 5838109009: DIFFERENTIAL, this washer stabilizes the gear stack and extends the service life of surrounding components.
Symptoms of Failure
- Transmission oil seepage around the differential housing: A worn 0730.110.085 washer allows excessive axial play, breaking the seal between the 5838300626: DIFFERENTIAL HOUSING and the output shaft, leading to visible fluid leaks.
- Gear slipping under load in construction equipment: When the washer thickness degrades, the 0750117075: TAPER ROLLER BEARING loses preload, causing intermittent gear disengagement during excavation or grading operations.
- Metallic grinding noise from the transmission sump: A collapsed washer permits the 2093209023: DIFFERENTIAL gears to contact the housing, producing a distinct high-pitched grinding sound at low speeds.
- Increased backlash in the drivetrain: Operators may notice a delayed response when shifting between forward and reverse, indicating the washer can no longer maintain proper gear spacing.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.110.085 |
| Material | Case-hardened alloy steel (DIN 1.7131) |
| Outer Diameter | 85 mm |
| Inner Diameter | 73 mm |
| Thickness | 3.5 mm |
| Weight | 0.12 kg |
| OEM Reference | ZF 0730.110.085 |
| Surface Hardness | HRC 58-62 |
Compatibility
This washer is engineered for ZF WG-series transmissions commonly found in wheel loaders, graders, and dump trucks. It directly fits the following models: WG180, WG200, WG210, WG240, and WG250. The 0730.110.085 is also used in certain ZF TC-Tronic and Ecolite transmissions where a 73 mm inner diameter thrust washer is specified. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109009 | DIFFERENTIAL | Distributes torque between drive axles |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on shafts |
| 2093209023 | DIFFERENTIAL | Secondary differential for planetary gears |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential gear set |
| 0631329088 | SPRING PIN | Secures washer alignment in bore |
| 5838300811 | THRUST WASHER | Reduces axial friction on bevel gear |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 5838300633 | AXLE | Driveshaft connecting differential to wheel |
| 5838300753 | THRUST WASHER | Spacer for differential side gears |
| 5838300818 | THRUST WASHER | Adjusts pinion gear depth |
Frequently Asked Questions
Q: Can I reuse the 0730.110.085 washer during a transmission rebuild?
A: No. This washer is a single-use component. Its case-hardened surface work-hardens during initial installation, and reusing it will lead to premature failure of the 0750117075: TAPER ROLLER BEARING due to incorrect preload.
Q: How do I know if the 0730.110.085 fits my ZF WG200 transmission?
A: Measure the inner diameter of your existing washer. If it is exactly 73 mm and the outer diameter is 85 mm, this part is compatible. Always cross-reference with your transmission’s parts manual for the suffix code.
Q: What tools are needed to replace this washer?
A: You will need a bearing puller, a torque wrench, and a micrometer to verify the new washer thickness. The 5838300626: DIFFERENTIAL HOUSING must be removed to access the washer seat.
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Phone: +86 158 2286 3467 |
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