Overview
The ZF 0730.112.576 SHIM is a precision-engineered OEM genuine component designed to establish critical axial clearances within heavy-duty construction machinery transmissions. This shim sits between the differential housing and the axle bevel gear assembly, ensuring that gear mesh patterns remain within factory tolerances. By maintaining exact spacing, the SKU 0730.112.576 prevents excessive gear wear and reduces internal vibration. This part is essential for any rebuild or overhaul of ZF drivelines where end-play adjustment is required.
Symptoms of Failure
- Excessive differential backlash — When the shim compresses or wears, you will notice a clunking sound during direction changes, a classic sign of lost preload.
- Premature bearing noise — A worn 0730.112.576 allows the 0750117075: TAPER ROLLER BEARING to shift, producing a growling or whining noise under load.
- Oil contamination from metal debris — Incorrect shim thickness leads to gear tooth contact fatigue, generating metallic particles in the transmission fluid.
- Intermittent gear slipping — As the shim degrades, the 5838109012: DIFFERENTIAL assembly loses its positional stability, causing momentary power loss during heavy excavation.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.112.576 |
| Material | Hardened spring steel (C67S) |
| Thickness | 1.50 mm (nominal) |
| Outer Diameter | 112 mm |
| Inner Diameter | 76 mm |
| Weight | 0.045 kg |
| OEM Reference | ZF 0730.112.576 |
| Surface Finish | Ground, deburred edges |
Compatibility
This shim is a standard adjustment component used across multiple ZF powershift and hydrostatic transmission families. It is commonly specified for the WG180, WG200, and WG250 series found in wheel loaders, graders, and telehandlers. The 0730.112.576 also appears in the 4WG-200 and 6WG-200 transmissions where precise differential preload is critical. When replacing this shim, always inspect the mating 5838300626: DIFFERENTIAL HOUSING for wear, and verify the condition of the 2093209023: DIFFERENTIAL assembly to ensure proper fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque between axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential carrier rotation |
| 2093209023 | DIFFERENTIAL | Secondary differential for planetary axles |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential gear set |
| 0631329088 | SPRING PIN | Secures shim and gear alignment |
| 5838300811 | THRUST WASHER | Controls axial movement of bevel gear |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 5838300633 | AXLE | Driveshaft connecting differential to wheel |
| 5838300753 | THRUST WASHER | Reduces friction on gear side faces |
| 5838300818 | THRUST WASHER | Compensates for thermal expansion |
Frequently Asked Questions
Q: How do I measure if the 0730.112.576 shim needs replacement?
A: Use a dial indicator to measure differential end-play. If clearance exceeds 0.15 mm, replace the shim and recheck with a new 5838300811: THRUST WASHER.
Q: Can I reuse this shim during a rebuild?
A: ZF recommends always installing a new OEM shim. The hardened steel can take a permanent set after initial torque, compromising gear mesh accuracy.
Q: Does this part fit the ZF 4WG-200 transmission?
A: Yes, the 0730.112.576 is a standard shim for the 4WG-200 and 6WG-200 series, provided the differential housing bore is within specification.
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Phone: +86 158 2286 3467 |
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