Overview
The ZF 0730.113.221 SHIM is a precision-engineered OEM genuine spacer component designed to establish critical axial clearances within heavy-duty construction machinery transmissions. This thin, hardened steel shim sits between the differential housing and the bearing races, ensuring that gear mesh patterns remain within factory tolerances. By maintaining exact preload on the 2099109002: DIFFERENTIAL assembly, the SKU 0730.113.221 prevents unwanted movement that can lead to premature wear. Proper shimming is essential for the longevity of the entire drivetrain, particularly when paired with the 2099364014: CROWN WHEEL and the 2099209001: DIFFERENTIAL unit.
Symptoms of Failure
- Excessive backlash in the driveline: When the 0730.113.221 shim compresses or fractures, you will notice a clunking sound when shifting between forward and reverse, indicating lost gear mesh accuracy.
- Abnormal differential housing temperatures: A worn shim allows the 2098309010: DIFFERENTIAL HOUSING to shift, creating metal-on-metal contact that generates localized heat.
- Oil contamination with metallic particles: As the shim degrades, steel debris enters the transmission fluid, often visible during routine oil changes.
- Vibration during load cycles: Incorrect shim thickness causes the crown wheel and pinion to misalign, producing rhythmic vibrations under load in construction machinery.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.113.221 |
| Material | Case-hardened spring steel (C67S) |
| Thickness | 0.50 mm (nominal) |
| Outer Diameter | 72.0 mm |
| Inner Diameter | 42.0 mm |
| Weight | 18 grams |
| OEM Reference | ZF 0730.113.221 |
| Surface Finish | Ground, deburred edges |
Compatibility
This shim is a direct fit for ZF WG180, WG200, and WG250 series transmissions commonly used in wheel loaders, telehandlers, and graders. It is also compatible with select ZF 4WG-200 and 6WG-200 off-highway gearboxes. Always verify the shim stack height when servicing the 2098309010: DIFFERENTIAL HOUSING assembly, as multiple shims may be stacked to achieve the correct preload on the differential bearings.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2099109002 | DIFFERENTIAL | Distributes torque to axle shafts |
| 2099364014 | CROWN WHEEL | Transfers power from pinion to differential |
| 2099209001 | DIFFERENTIAL | Alternate differential assembly variant |
| 2098309010 | DIFFERENTIAL HOUSING | Encloses differential gears and bearings |
| 2098309009 | DIFFERENTIAL HOUSING | Alternate housing casting |
| 2098309031 | AXLE BEVEL GEAR | Drives axle shaft at differential output |
| 2098309030 | AXLE BEVEL GEAR | Matching bevel gear for opposite side |
| 2098309032 | DIFFERENTIAL BEVEL GEAR | Planetary gear inside differential case |
| 12883200682 | THRUST WASHER | Reduces axial friction on gear faces |
| 0635332059 | BALL BEARING | Supports differential carrier rotation |
