Overview
The ZF 0730.109.395 SHIM is a precision-engineered OEM genuine component designed to establish critical axial clearances within ZF heavy-duty transmissions. This shim sits between the differential housing and the bearing race, ensuring that gear mesh patterns remain within factory tolerances under high torque loads. The SKU 0730.109.395 is manufactured from case-hardened steel to resist deformation during prolonged operation in construction machinery. Proper shim selection directly influences the preload on adjacent components, such as the 0750117075 TAPER ROLLER BEARING, which relies on this shim to maintain rotational stability.
Symptoms of Failure
- Excessive differential backlash during load shifts – A worn or collapsed shim allows the 5838109012 DIFFERENTIAL to drift axially, causing delayed engagement and clunking noises.
- Oil seepage from the axle housing flange – When the shim loses thickness, the 5838300626 DIFFERENTIAL HOUSING shifts position, breaking the seal and allowing lubricant to escape.
- Premature bearing wear on the pinion shaft – Incorrect shim stack height increases radial play, accelerating fatigue on the 2093209023 DIFFERENTIAL assembly.
- Vibration at steady cruising speeds – A degraded shim permits gear face misalignment, producing harmonic vibrations that worsen over time.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.109.395 |
| Material | Case-hardened alloy steel (DIN 1.7131) |
| Thickness | 2.50 mm ±0.02 mm |
| Outer Diameter | 85.0 mm |
| Inner Diameter | 62.0 mm |
| Weight | 0.045 kg |
| OEM Reference | ZF 0730.109.395 |
| Hardness | HRC 58-62 (case depth 0.8 mm) |
Compatibility
This shim is engineered for ZF power-split transmissions commonly found in wheel loaders and graders. It is a direct fit for the WG180, WG200, and WG211 series. The 0730.109.395 also appears in certain ZF 4WG-200 and ZF 6WG-260 transfer cases. Always verify the shim stack count during rebuilds, as multiple shims may be combined to achieve the specified preload on the 5838300811 THRUST WASHER.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque between axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on the pinion |
| 2093209023 | DIFFERENTIAL | Secondary differential for planetary hubs |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses the differential gear set |
| 0631329088 | SPRING PIN | Secures shift fork to actuator rod |
| 5838300811 | THRUST WASHER | Controls axial play in the differential carrier |
| 5838300721 | AXLE BEVEL GEAR | Transfers power from pinion to ring gear |
| 5838300633 | AXLE | Drives the wheel hub assembly |
| 5838300753 | THRUST WASHER | Reduces friction on the side gear |
| 5838300818 | THRUST WASHER | Provides axial support for the spider gear |
Frequently Asked Questions
Q: Can I reuse the 0730.109.395 shim during a transmission rebuild?
A: No. ZF recommends replacing all shims during overhaul because the case-hardened layer can fatigue, leading to unpredictable clearance changes.
Q: How do I measure the correct shim thickness for my WG200 transmission?
A: Use a dial indicator to measure the differential housing end float, then select the 0730.109.395 shim (or a stack) to achieve 0.05–0.10 mm preload on the taper roller bearing.
Q: Does this shim fit the ZF 4WG-180 model?
A: Yes. The 0730.109.395 is shared across the WG180, WG200, and WG211 families. Always cross-reference your transmission serial number.
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