Overview
The ZF 5838.300.594 INNER GEAR RING is a critical component engineered for the WG100, WG130, and WG131 transmission series. This OEM genuine part functions as the internal ring gear within the planetary gear set, directly engaging with the planet gears to transfer torque and manage speed reduction. Positioned inside the transmission housing, it works in concert with the 5838109006: DIFFERENTIAL and the 2095209037: DIFFERENTIAL to ensure smooth power distribution. The SKU 5838.300.594 is precision-machined to OEM tolerances, guaranteeing a perfect fit and long service life in heavy-duty industrial applications.
Symptoms of Failure
- Whining or grinding noise during gear engagement: A worn inner gear ring produces a distinct metallic whine or grinding sound, especially when the transmission is under load. This indicates tooth surface degradation or pitting.
- Intermittent gear slipping under heavy torque: As the ring gear teeth wear unevenly, the planetary gears may lose proper meshing, causing the transmission to slip unexpectedly during acceleration or uphill operation.
- Metallic debris in transmission fluid: Flakes or particles found in the oil filter or drain plug signal that the inner gear ring is shedding material, often accompanied by reduced hydraulic pressure.
- Vibration and harsh shifting: A damaged ring gear disrupts the planetary gear set balance, leading to noticeable vibration through the drivetrain and abrupt, jerky shifts between ranges.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 5838.300.594 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Outer Diameter | Approx. 180 mm |
| Inner Diameter | Approx. 140 mm |
| Tooth Count | 72 internal teeth |
| Weight | 2.85 kg |
| OEM Reference | ZF 5838.300.594 |
| Hardness | 58-62 HRC (case depth 0.8-1.2 mm) |
Compatibility
This inner gear ring is specifically designed for ZF WG100, WG130, and WG131 transmissions. It is also compatible with certain variants of the WG180 and WG200 series when used in planetary reduction stages. Always verify the transmission serial number before installation. The part integrates with the 0750117075: TAPER ROLLER BEARING for shaft support and the 2095309059: DIFF.HOUSING for final drive assembly. For precise fitment, consult the ZF parts catalog for your specific model year.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109006 | DIFFERENTIAL | Distributes torque between output shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads on gear shafts |
| 2095209037 | DIFFERENTIAL | Secondary differential for multi-axle drive |
| 2095309059 | DIFF.HOUSING | Encloses and protects differential gears |
| 0631329086 | SPRING PIN | Secures gear alignment during assembly |
| 0730300820 | THRUST WASHER | Reduces axial friction between rotating gears |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 2095309081 | DIFFERENTIAL AXLE | Connects differential to wheel hubs |
| 5838300811 | THRUST WASHER | Controls end-play in planetary gear sets |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Provides speed differentiation between wheels |
ZF 5838.300.594 INNER GEAR RING – Gear RFQ Support
PartsZF helps B2B buyers source ZF 5838.300.594 INNER GEAR RING with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This gear page is built from confirmed catalog, media, and reference data to reduce sourcing uncertainty for construction machinery transmission parts.
Part-Number Summary
Use ZF number 5838.300.594 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: DIFFERENTIAL
Cross Reference Support
If you have an OEM number, old supplier number, or visible marking, include it with your RFQ so PartsZF can compare it with the available records.
Specification Snapshot
| ZF part number | 5838.300.594 |
|---|---|
| Normalized SKU | 5838300594 |
| Part name | INNER GEAR RING |
| Product category | gear |
| Cross-reference support | Available for RFQ review |
Image and Documentation Notes
Current product media status: fallback. Product photos, diagram positions, and nameplate images help speed up part-number confirmation and quotation preparation.
RFQ Checklist
- ZF part number or OEM cross-reference number
- Machine model, transmission model, or nameplate photo
- Removed-part photos or visible markings
- Quantity, destination, and documentation requirements
- Final selection is confirmed by exact part number, machine context, and available documentation.
Related Parts
- ZF 4646.302.128 HELICAL GEAR
- ZF 4143.316.088 PINION
- ZF 4657.302.007 INPUT GEAR
- ZF 4657.354.044 OUTPUT GEAR
- ZF 4644.306.326 GEAR SHIFT HOUSING
