Overview
The ZF 0630.000.197 SHIM RING is a precision-engineered OEM genuine component designed for critical axial clearance adjustment within heavy-duty ZF construction machinery transmissions. This shim ring, identified by SKU 0630.000.197, sits directly between the transmission housing and the bearing cover assembly, establishing the precise preload necessary for optimal gear train alignment. By controlling end-play in the planetary gear sets, this thin but vital ring prevents excessive movement that leads to premature wear. It is commonly installed during rebuilds alongside the 4108101112: HOUSING and the 4108201177: HOUSING to ensure a perfect fit and long service life.
Symptoms of Failure
- Transmission gear slippage under load: When the shim ring wears or compresses beyond tolerance, axial play increases, causing clutch packs to lose engagement pressure. Operators often report “ZF transmission slipping in forward gears” as a primary complaint.
- Excessive drivetrain noise or whining: A worn 0630.000.197 allows planetary gears to shift out of alignment, producing a distinct “whining noise from ZF transmission” during acceleration or deceleration.
- Oil leaks at housing joints: Incorrect shim thickness can distort the bearing cover seal surface, leading to “ZF transmission oil leak between housing and cover” issues. This often requires replacement of the 0636302056: SCREW PLUG and associated seals during repair.
- Vibration in the driveline: Loss of proper preload causes harmonic vibrations, particularly noticeable at highway speeds, indicating the need for a new shim ring and inspection of the 4108301304: BEARING COVER.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0630.000.197 |
| Material | Case-hardened spring steel (C67S) |
| Inner Diameter | 130.0 mm |
| Outer Diameter | 155.0 mm |
| Thickness | 0.50 mm (selective fit range available) |
| Weight | 0.045 kg |
| OEM Reference | ZF 0630.000.197 |
| Surface Finish | Ground, deburred edges |
Compatibility
This shim ring is engineered for use in ZF WG180, WG200, and WG210 series transmissions commonly found in wheel loaders, graders, and heavy dump trucks. It is also compatible with select ZF Ecomat 4HP and 5HP series where axial shimming of the output shaft is required. Always verify the selective thickness range against your service manual, as multiple shim sizes (0.30 mm to 1.00 mm) are used in the same assembly. For complete rebuilds, pair this part with the 4108102042: INPUT and 4108302099: PLANET CARRIER to restore factory tolerances.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101112 | HOUSING | Main transmission casing |
| 4108201177 | HOUSING | Rear housing section |
| 0636302056 | SCREW PLUG | Oil drain/fill port seal |
| 4108301304 | BEARING COVER | Bearing retention and seal surface |
| 4108306173 | GASKET | Housing joint seal |
| 0750110040 | SHAFT SEAL | Output shaft oil seal |
| 4108102042 | INPUT | Input shaft assembly |
| 4108302099 | PLANET CARRIER | Planetary gear carrier |
| 4108302007 | BEARINGSHEET | Bearing shim selection guide |
| 0635332196 | BALL BEARING | Output shaft support bearing |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
