Overview
The ZF 0730.007.976 SHIM is a precision-engineered OEM genuine part designed to establish critical axial clearances within heavy-duty ZF transmissions. This shim sits between the differential housing and the bearing race, ensuring correct preload on the taper roller bearings. By maintaining exact spacing, the 0730.007.976 prevents gear train misalignment and reduces internal stress on rotating assemblies. As a factory-spec component, it guarantees dimensional consistency for reliable load distribution in construction machinery drivetrains.
Symptoms of Failure
- Excessive differential bearing noise during turns – A worn or collapsed shim allows the 0750117075: TAPER ROLLER BEARING to lose preload, causing a grinding or rumbling sound when cornering under load.
- Oil seepage from axle housing seals – Incorrect shim thickness shifts the 2095309059: DIFF.HOUSING position, distorting seal contact surfaces and leading to gradual lubricant loss.
- Intermittent gear clash in forward/reverse – Axial play from a degraded shim allows the 2095109016: DIFFERENTIAL to drift, causing delayed engagement and harsh shifting in WG-series transmissions.
- Vibration at steady highway speeds – Uneven shim wear disrupts the balance of the 2095209037: DIFFERENTIAL assembly, transmitting harmonic vibrations through the driveline.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.007.976 |
| Material | Hardened spring steel (C67S) |
| Thickness | 1.50 mm ±0.02 mm |
| Outer Diameter | 98.4 mm |
| Inner Diameter | 72.0 mm |
| Weight | 0.042 kg |
| OEM Reference | ZF 0730.007.976 |
| Surface Finish | Ground, deburred edges |
Compatibility
This shim is primarily used in ZF WG180, WG200, and WG211 series powershift transmissions found in wheel loaders, graders, and excavators. It also applies to select ZF Ecomat 4HP and 5HP models where differential preload adjustment is required. Always verify the shim stack height against the service manual for your specific transmission serial number.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2095109016 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential rotation under load |
| 2095209037 | DIFFERENTIAL | Secondary differential assembly |
| 2095309059 | DIFF.HOUSING | Encloses differential gears |
| 0631329086 | SPRING PIN | Retains shim position on shaft |
| 0730300820 | THRUST WASHER | Reduces axial friction |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2095309081 | DIFFERENTIAL AXLE | Connects differential to side gears |
| 5838300811 | THRUST WASHER | Controls gear end-play |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Drives axle bevel gear |
