Overview
The ZF 0630.004.205 SHIM RING is a precision-engineered spacer component designed for the WG 200 series transmission family. This OEM genuine part, identified by SKU 0630.004.205, sits between the planetary gear set and the output shaft assembly, where it controls axial clearance and preload. By maintaining exact end-play tolerances, this shim ring prevents gear clash and ensures smooth torque transfer under heavy load conditions. It is a critical wear item that must be replaced during any major transmission overhaul to restore factory-specified clearances.
Symptoms of Failure
- Excessive gear backlash or clunking during acceleration – When the shim ring wears, axial play increases, causing audible knocking in the WG200 planetary gears.
- Premature bearing wear and whining noise – Loss of preload forces the 0750117406: TAPER ROLLER BEARING and 0750117802: TAPERED ROLLER BEARING to operate outside their optimal load zone, generating high-pitched whines.
- Oil contamination from metal debris – A degraded shim ring sheds fine metallic particles into the transmission fluid, visible during drain intervals.
- Intermittent gear slippage under load – Incorrect shim thickness allows the 4460115043: HOUSING to shift slightly, breaking torque flow between the clutch pack and output shaft.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0630.004.205 |
| Material | Case-hardened steel (DIN 1.7131) |
| Inner Diameter | 105.0 mm |
| Outer Diameter | 135.0 mm |
| Thickness | 2.05 mm |
| Weight | 0.085 kg |
| OEM Reference | ZF 0630.004.205 |
| Surface Finish | Ground, Ra ≤ 0.8 µm |
Compatibility
This shim ring is engineered for the ZF WG200 series, including the WG180, WG200, and WG210 models. It is also used in certain WG120 variants where the planetary carrier assembly requires the same 2.05 mm shim thickness. Always verify your transmission serial number against the OEM parts catalog before ordering. The ring works in conjunction with the 4469315012: AXLE DRIVE HOUSING to maintain concentricity of the output shaft.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4460115043 | HOUSING | Encloses planetary gear set and supports shaft alignment |
| 4469315012 | AXLE DRIVE HOUSING | Transfers torque from differential to wheel axles |
| 0750117406 | TAPER ROLLER BEARING | Supports radial and axial loads on input shaft |
| 0750117802 | TAPERED ROLLER BEARING | Handles thrust loads from helical gears |
| 0734319337 | SHAFT SEAL | Prevents oil leakage at output shaft exit |
| 0730161317 | WASHER | Spacer for clutch pack preload adjustment |
| 0730161451 | WASHER | Thrust washer for sun gear support |
| 0730161452 | WASHER | Selective shim for bearing preload |
| 0730161453 | WASHER | Spacer for output shaft nut torque |
| 0730161340 | WASHER | Locking washer for planetary carrier bolts |
