Overview
The ZF 0730.301.964 SHIM is a precision-engineered OEM genuine spacer component designed to establish critical axial clearances within ZF heavy-duty transmission assemblies. Positioned between gear sets and bearing races, this shim compensates for manufacturing tolerances, ensuring optimal gear mesh and load distribution. The SKU 0730.301.964 is commonly found in the differential housing area of construction machinery transmissions, where it directly supports the alignment of the 2095109020: DIFFERENTIAL and the 0750117075: TAPER ROLLER BEARING. Without this shim, preload settings cannot be maintained, leading to accelerated component wear.
Symptoms of Failure
- Excessive axial play in the differential housing: When the shim compresses or corrodes, operators notice a distinct “clunk” during direction changes, indicating lost preload between the 2095209037: DIFFERENTIAL and the housing.
- Low-frequency whine from the transmission center section: A worn 0730.301.964 shim alters gear backlash, producing a constant drone that intensifies under load—a classic sign of misaligned 2095309059: DIFF.HOUSING components.
- Intermittent gear slipping under heavy torque: As clearance increases, the taper roller bearing loses its grip, causing momentary power loss during digging or pushing operations.
- Metallic debris in the transmission oil filter: Flaking from a fatigued shim introduces steel particles into the lubrication circuit, often mistaken for bearing failure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.301.964 |
| Material | Case-hardened spring steel (C67S) |
| Thickness | 1.50 mm ± 0.02 mm |
| Outer Diameter | 85.0 mm |
| Inner Diameter | 62.0 mm |
| Weight | 0.045 kg |
| OEM Reference | ZF 0730.301.964 |
| Surface Finish | Ground, deburred edges |
Compatibility
This shim is engineered for ZF heavy-duty powershift transmissions commonly deployed in construction machinery. It is a direct fit for the following transmission models: ZF WG180, ZF WG200, ZF WG210, and ZF 4WG310. The 0730.301.964 is also used in certain ZF Ergopower and ZF Ecomix series where differential preload adjustments are required. Always verify the shim stack height during rebuilds to match factory specifications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2095109020 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential rotation under load |
| 2095209037 | DIFFERENTIAL | Secondary differential unit for multi-axle |
| 2095309059 | DIFF.HOUSING | Encloses differential gear set |
| 0631329086 | SPRING PIN | Secures shim and gear alignment |
| 0730300820 | THRUST WASHER | Reduces axial friction on gear faces |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2095309081 | DIFFERENTIAL AXLE | Driveshaft connection within diff |
| 5838300811 | THRUST WASHER | Controls end-play in gear stack |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear mesh in differential |
