Overview
This genuine ZF 0730.301.111 WASHER is a precision-engineered component designed to maintain critical axial clearances within the differential and final drive assemblies of heavy-duty construction machinery transmissions. Positioned between rotating gear sets and stationary housings, this hardened steel washer absorbs thrust loads and prevents metal-to-metal contact, ensuring smooth power transfer under extreme torque conditions. The SKU 0730.301.111 is manufactured to OEM tolerances, guaranteeing a direct fit without modification. When installed alongside a 5838109009: DIFFERENTIAL, it helps maintain proper gear mesh patterns and extends the service life of surrounding components.
Symptoms of Failure
- Transmission oil leaks near the differential housing: A worn 0730.301.111 washer can cause misalignment, leading to seal distortion and fluid seepage around the output flange.
- Gear slipping under load in construction equipment: When this washer loses its thickness, axial play increases, causing intermittent gear disengagement during heavy digging or grading operations.
- Metallic grinding noise from the final drive: Excessive clearance allows the 0750117075: TAPER ROLLER BEARING to shift, producing a distinct whining or grinding sound during turns.
- Premature wear on the differential gears: A collapsed washer forces the 2093209023: DIFFERENTIAL to operate outside its designed shim range, accelerating tooth wear.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0730.301.111 |
| Material | Case-hardened alloy steel (SAE 8620 equivalent) |
| Outer Diameter | 72.0 mm |
| Inner Diameter | 52.5 mm |
| Thickness | 2.5 mm |
| Weight | 0.045 kg |
| OEM Reference | ZF 0730.301.111 |
| Hardness | HRC 58-62 |
Compatibility
This washer is engineered for ZF power-shift transmissions commonly used in wheel loaders, graders, and excavators. It is a direct replacement in the following models: ZF WG180, WG200, WG210, and WG310 series. It specifically fits the differential carrier assembly where it sits between the 5838300626: DIFFERENTIAL HOUSING and the bevel gear set. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109009 | DIFFERENTIAL | Distributes torque between drive wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on shafts |
| 2093209023 | DIFFERENTIAL | Allows wheel speed differentiation during turns |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses and supports differential gears |
| 0631329088 | SPRING PIN | Secures washer and gear alignment |
| 5838300811 | THRUST WASHER | Reduces friction on gear faces |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 5838300633 | AXLE | Transmits rotational force to wheels |
| 5838300753 | THRUST WASHER | Controls axial end play in differential |
| 5838300818 | THRUST WASHER | Provides wear surface for planetary gears |
Frequently Asked Questions
Q: Can I reuse the old 0730.301.111 washer during a rebuild?
No. This washer is a crush-type component that deforms during initial torque application. Reuse will result in incorrect preload and rapid failure of the differential assembly.
Q: Does this washer require any special installation tools?
Yes. A depth micrometer and bearing puller are recommended to measure the housing bore depth. The washer must be pressed flush against the shoulder before installing the taper roller bearing.
Q: Will this part fit ZF WG150 transmissions?
No. The WG150 uses a thinner 1.8 mm washer (part 0730.301.109). Always cross-reference your transmission model code stamped on the housing.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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