Overview
The ZF 0730.113.220 SHIM is a precision-engineered spacer component designed to establish critical axial clearances within heavy-duty construction machinery transmissions. This OEM genuine part sits between the differential housing and the crown wheel assembly, ensuring optimal gear mesh alignment and load distribution. The SKU 0730.113.220 is specifically calibrated to maintain the exact preload tolerances required for ZF drivetrain longevity, preventing metal-to-metal contact during high-torque operations. Without this shim, the entire differential assembly—including the 2099109002: DIFFERENTIAL—would experience accelerated wear due to improper backlash settings.
Symptoms of Failure
- Excessive drivetrain backlash: When the 0730.113.220 shim compresses or fractures, operators notice a delayed engagement between the 2099364014: CROWN WHEEL and pinion, causing clunking noises during direction changes.
- Oil seepage from axle housing: A worn shim allows the 2098309010: DIFFERENTIAL HOUSING to shift, breaking the seal between mating surfaces and leading to visible lubricant leaks around the differential cover.
- Uneven tire wear patterns: Incorrect shim thickness disrupts the 2099209001: DIFFERENTIAL operation, causing one wheel to spin faster than the other under load—a classic sign of failing axial clearance control.
- High-pitched whining under acceleration: Metal fatigue in the shim alters the crown wheel contact pattern, producing a distinct gear whine that intensifies with speed.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.113.220 |
| Material | Case-hardened alloy steel (DIN 1.7131) |
| Thickness | 2.20 mm (±0.02 mm) |
| Outer Diameter | 145.0 mm |
| Inner Diameter | 110.0 mm |
| Weight | 0.18 kg |
| Surface Finish | Ground, Ra ≤ 0.8 µm |
| OEM Reference | ZF 0730.113.220 |
| Hardness | 58–62 HRC |
Compatibility
This shim is engineered for ZF WG180, WG200, and WG250 series transmissions commonly found in wheel loaders, telehandlers, and graders. It directly interfaces with the 2098309009: DIFFERENTIAL HOUSING and the 2098309031: AXLE BEVEL GEAR in these models. For WG310 and WG350 heavy-duty variants, verify stack-up requirements using the 12883200682: THRUST WASHER alongside this shim. The part also supports retrofit applications in older ZF APL-300 series axles when paired with the 0635332059: BALL BEARING for proper rotational support.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2099109002 | DIFFERENTIAL | Distributes torque between drive wheels |
| 2099364014 | CROWN WHEEL | Transfers power from pinion to differential |
| 2099209001 | DIFFERENTIAL | Alternate variant for WG200 series |
| 2098309010 | DIFFERENTIAL HOUSING | Encloses differential gears and shims |
| 2098309009 | DIFFERENTIAL HOUSING | Compatible housing for WG180 models |
| 2098309031 | AXLE BEVEL GEAR | Primary gear set for final drive reduction |
| 2098309030 | AXLE BEVEL GEAR | Alternate ratio bevel gear option |
| 2098309032 | DIFFERENTIAL BEVEL GEAR | Spider gear for differential action |
| 12883200682 | THRUST WASHER | Controls axial play in gear stacks |
| 0635332059 | BALL BEARING | Supports rotating shaft loads |
