Overview
The ZF 0630.000.012 SHIM RING is a precision-engineered adjustment component designed for the WG 65 Series transmission family. This OEM genuine part functions as a critical axial spacer within the planetary gearset assembly, ensuring correct end-play tolerances between rotating and stationary components. By maintaining precise clearance, the shim ring prevents metal-to-metal contact and supports optimal load distribution across the gear train. The SKU 0630.000.012 is manufactured to ZF’s exacting specifications, guaranteeing a perfect fit when paired with the 4616105413: OUTPUT and the 4616203017: OUTPUT FLANGE during rebuild or repair procedures.
Symptoms of Failure
When the ZF 0630.000.012 shim ring wears or deforms, several distinct failure modes emerge. Excessive axial play in the output shaft is a primary indicator, often felt as a clunking sensation during gear engagement. Premature bearing failure occurs as incorrect shim thickness allows radial loads to transfer to adjacent components. Oil leaks at the transmission housing interface may develop when the shim ring’s dimensional integrity is compromised, allowing fluid to bypass seals. Gear slipping under load can result from altered gear mesh patterns caused by improper end-play, a symptom frequently searched by technicians diagnosing WG65 performance issues.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0630.000.012 |
| Material | Hardened Spring Steel (DIN 1.4310 equivalent) |
| Inner Diameter | 68.0 mm |
| Outer Diameter | 82.0 mm |
| Thickness | 1.2 mm (selective fit) |
| Weight | 0.012 kg |
| OEM Reference | ZF 0630.000.012 |
| Surface Finish | Ground, deburred edges |
Compatibility
This shim ring is specifically engineered for the ZF WG 65 Series, but its dimensional profile also suits several related heavy-duty transmissions. Compatible models include the WG65, WG80, WG120, and WG180 series used in off-highway and construction equipment. The part interfaces directly with the 4616101117: TRANSMISSION HOUSING and is secured using the 0636011038: HEXAGON SCREW during final assembly. Always verify your transmission’s serial number against ZF’s parts catalog to confirm correct shim selection.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105413 | OUTPUT | Transfers torque from planetary gearset to output flange |
| 4616203017 | OUTPUT FLANGE | Connects transmission output to driveshaft |
| 4616101117 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 0636011038 | HEXAGON SCREW | Secures housing and output components |
| 0636016015 | HEXAGON SCREW | Fastener for flange mounting |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing positioning |
| 0634313118 | O-RING | Static seal between housing sections |
| 0732611049 | FILTER INSERT | Hydraulic oil filtration element |
| 0634303718 | O-RING | Seal for output flange interface |
| 0636610082 | STUD | Threaded rod for housing bolt alignment |
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