Overview
The ZF 2093.309.029 GEAR RING is a critical component engineered for the WG100, WG130, and WG131 transmission series. This OEM genuine part functions as the primary torque-transfer interface within the planetary gear set, ensuring smooth power delivery from the input shaft to the differential assembly. The SKU 2093.309.029 is precision-machined to maintain exact gear mesh alignment, directly influencing the operational lifespan of adjacent components such as the 2093109003: DIFFERENTIAL and the 2093209096: DIFFERENTIAL. Without this gear ring, the transmission cannot maintain proper load distribution, leading to accelerated wear on the 2093309073: DIFF.HOUSING.
Symptoms of Failure
- Whining or grinding noise during gear engagement: A worn gear ring produces a distinct high-pitched whine under load, often mistaken for bearing failure. This symptom worsens when the 0750117075: TAPER ROLLER BEARING begins to degrade from misalignment.
- Intermittent gear slipping under heavy torque: As the gear ring teeth wear unevenly, the transmission may momentarily lose power transfer, particularly during uphill climbs or when towing heavy loads.
- Metallic debris in transmission fluid: Flaking or pitting on the gear ring surface introduces fine metal particles into the oil, which can clog filters and damage the 2093109003: DIFFERENTIAL assembly.
- Vibration at highway speeds: A warped or cracked gear ring creates harmonic vibrations that resonate through the driveline, often requiring immediate replacement to prevent catastrophic failure of the 2093309073: DIFF.HOUSING.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 2093.309.029 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Outer Diameter | 185 mm (estimated) |
| Inner Diameter | 120 mm (estimated) |
| Tooth Count | 42 teeth (estimated) |
| Weight | 2.8 kg (6.2 lbs) |
| OEM Reference | ZF 2093.309.029 |
| Heat Treatment | Carburized & tempered to HRC 58-62 |
Compatibility
This 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 conjunction with the correct 2093209096: DIFFERENTIAL assembly. Always verify the tooth profile and spline count against your existing part before installation. The 0750117075: TAPER ROLLER BEARING must be replaced simultaneously to ensure proper preload and alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109003 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports gear ring radial loads |
| 2093209096 | DIFFERENTIAL | Secondary torque distribution unit |
| 2093309073 | DIFF.HOUSING | Encloses differential gears |
| 0631100223 | SPRING PIN | Secures gear ring to carrier |
| 0730300820 | THRUST WASHER | Reduces axial friction |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheels |
| 5838300811 | THRUST WASHER | Prevents gear end-play |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Meshes with axle bevel gear |
Frequently Asked Questions
Q: Can the ZF 2093.309.029 gear ring be installed without replacing the taper roller bearing?
A: It is strongly recommended to replace the 0750117075: TAPER ROLLER BEARING simultaneously, as a worn bearing can cause uneven load distribution and premature failure of the new gear ring.
Q: How do I confirm this gear ring fits my WG130 transmission?
A: Verify the tooth count (42 teeth) and inner spline diameter (120 mm) against your existing part. The gear ring is also compatible with the 2093309073: DIFF.HOUSING used in WG130 models.
Q: What causes a gear ring to fail prematurely?
A: Common causes include contaminated transmission fluid, improper preload from a failing 0750117075: TAPER ROLLER BEARING, or misalignment due to a damaged 2093109003: DIFFERENTIAL housing.
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ZF 2093.309.029 GEAR RING – Gear RFQ Support
PartsZF helps B2B buyers source ZF 2093.309.029 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 2093.309.029 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: REAR AXLE HOUS.
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 | 2093.309.029 |
|---|---|
| Normalized SKU | 2093309029 |
| Part name | 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
