Overview
The ZF 0730.102.947 SHIM is a precision-engineered OEM genuine spacer component designed to establish critical axial clearances within heavy-duty ZF construction machinery transmissions. This thin, hardened steel shim sits between the transmission housing and bearing assemblies, compensating for manufacturing tolerances to ensure optimal gear mesh and shaft alignment. The SKU 0730.102.947 is a factory-specified part that directly controls preload on planetary gear sets, preventing unwanted axial movement during high-torque operations. When installed alongside the 4108101076 HOUSING, this shim maintains the precise gap required for proper lubrication flow and load distribution across the rotating assembly.
Symptoms of Failure
When the ZF 0730.102.947 SHIM wears or deforms, operators will notice distinct operational issues. Transmission gear slipping under load occurs as axial clearance increases, allowing planetary gears to shift out of alignment. Excessive end-play in the input shaft becomes detectable during routine maintenance checks, often accompanied by a metallic knocking sound during gear changes. Premature bearing failure results from improper preload, generating fine metallic debris in the oil filter. Oil leaks at the housing interface may develop if the shim compresses unevenly, distorting the seal surface between the 4108201217 HOUSING and the main case.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0730.102.947 |
| Material | Case-hardened spring steel (DIN 1.3505 equivalent) |
| Thickness | 0.50 mm (nominal, selective fit range available) |
| Outer Diameter | 68.0 mm |
| Inner Diameter | 42.0 mm |
| Weight | 12 grams |
| OEM Reference | ZF 0730.102.947 |
| Hardness | HRC 45-50 |
Compatibility
This shim is a standard adjustment component used across multiple ZF power-shift transmission families. It is commonly specified for the WG180, WG200, and WG210 series found in wheel loaders, graders, and dozers. The part also appears in the 4WG-200 and 6WG-200 variants, where it sets the clearance between the 4108301304 BEARING COVER and the planetary carrier. Always verify stack height using the 4108306173 GASKET as a reference during reassembly, as gasket compression directly affects final shim selection.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101076 | HOUSING | Main transmission case housing |
| 4108201217 | HOUSING | Intermediate housing section |
| 4108301304 | BEARING COVER | Seals and retains output bearings |
| 4108306173 | GASKET | Housing interface seal |
| 0730365280 | TYPE PLATE | Transmission identification plate |
| 0631311009 | GROOVED STUD | Alignment dowel for housing assembly |
| 4108301345 | INPUT SHAFT | Primary power input shaft |
| 0735330931 | BALL BEARING | Input shaft support bearing |
| 0630532160 | RETAINING RING | External snap ring for bearing retention |
| 0630531130 | RETAINING RING | Internal snap ring for shaft retention |
