Overview
The ZF 0630.000.112 SHIM RING is a precision-engineered adjustment component designed for the WG 65 Series transmission family. This OEM genuine part functions as a critical spacer within the planetary gearset assembly, ensuring correct axial clearance and preload between rotating elements. By maintaining exact tolerances, the shim ring prevents unwanted movement and distributes load evenly across gear teeth. The SKU 0630.000.112 is manufactured to ZF’s original specifications, guaranteeing a direct fit and long service life. This shim ring is typically installed during transmission rebuilds or when replacing adjacent wear items such as the 4616105415: OUTPUT shaft assembly.
Symptoms of Failure
- Excessive axial play in the output shaft: A worn or collapsed shim ring allows the output shaft to move longitudinally, causing gear misalignment and harsh shifting. This is often noticed as a “clunk” during acceleration or deceleration.
- Premature bearing failure and whining noise: When the 0630.000.112 loses its specified thickness, bearings lose proper preload, leading to metal-on-metal contact. Operators report a high-pitched whine from the transmission housing, especially in lower gears.
- Intermittent gear slipping under load: Incorrect clearance from a degraded shim ring can cause the clutch packs to engage incompletely. This manifests as momentary power loss when climbing grades or hauling heavy loads.
- Oil contamination from metal debris: As the shim ring wears, fine metallic particles circulate through the transmission fluid. This accelerates wear on the 4616303144: OUTPUT FLANGE and other hardened surfaces.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0630.000.112 |
| Material | Case-hardened steel (DIN 1.7131) |
| Inner Diameter | 112.0 mm |
| Outer Diameter | 130.0 mm |
| Thickness | 1.50 mm (selective fit) |
| Weight | 0.045 kg |
| Surface Finish | Ground, Ra ≤ 0.8 µm |
| OEM Reference | ZF 0630.000.112 |
Compatibility
This shim ring is primarily specified for the ZF WG 65 Series, including models WG65, WG80, and WG90. It is also compatible with the WG120, WG150, WG180, and WG200 transmissions when used in the planetary carrier-to-output shaft interface. The 0630.000.112 is commonly paired with the 4616101094: TRANSMISSION HOUSING and secured using the 0636011038: HEXAGON SCREW. Always verify the existing shim thickness before ordering, as selective fit variants exist for different clearance requirements.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105415 | OUTPUT | Transfers torque from planetary gearset to driveline |
| 4616303144 | OUTPUT FLANGE | Connects output shaft to driveshaft yoke |
| 4616101094 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 0636011038 | HEXAGON SCREW | Fastens shim ring and bearing retainer |
| 0636011118 | HEXAGON SCREW | Secures output flange to shaft |
| 0636016015 | HEXAGON SCREW | Mounts housing to bell housing |
| 0631306085 | CYLINDRICAL PIN | Aligns housing halves during assembly |
| 0634313118 | O-RING | Seals output shaft bore |
| 0732611049 | FILTER INSERT | Traps debris in lubrication circuit |
| 0634303718 | O-RING | Seals housing cover joint |
