Overview
The ZF 2097.310.026 PLANETARY GEAR is a critical torque-multiplying component engineered specifically for the WG100, WG130, and WG131 transmission series. This OEM genuine part sits within the planetary gearset assembly, where it transfers rotational force from the sun gear to the ring gear, enabling smooth ratio changes under heavy load. As a precision-ground gear, the SKU 2097.310.026 ensures minimal backlash and maximum durability in high-cycle industrial applications. It works in concert with the 2093109050: DIFFERENTIAL to distribute power evenly across the axle shafts.
Symptoms of Failure
- Whining or growling noise during gear engagement: Worn planetary gear teeth produce a distinct metallic whine that intensifies under load, often mistaken for bearing noise.
- Intermittent gear slipping under torque: As the planetary gear loses tooth profile integrity, the transmission may momentarily lose power delivery when climbing grades or accelerating.
- Metallic debris in transmission fluid: Flaking or pitting on the gear surface sheds fine metal particles into the oil, visible during routine drain inspections.
- Vibration through the driveline at specific RPMs: Uneven wear on the planetary gear creates harmonic vibrations that resonate through the chassis between 1800-2200 RPM.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2097.310.026 |
| Gear Type | Planetary (Helical Cut) |
| Material | Case-Hardened 20MnCr5 Steel |
| Outside Diameter | 98.5 mm |
| Internal Bore Diameter | 32.0 mm |
| Face Width | 28.4 mm |
| Number of Teeth | 22 |
| Weight | 0.85 kg (1.87 lbs) |
| OEM Reference | ZF 2097.310.026 |
| Heat Treatment | Carburized & Tempered to HRC 58-62 |
Compatibility
This planetary gear is designed for ZF WG-series transmissions with a torque capacity of 100-131 Nm. Primary applications include the WG100, WG130, and WG131 models. It also fits select variants of the WG180 and WG200 when used with the correct carrier assembly. Always verify your transmission model code before ordering. The gear interfaces directly with the 2093209094: DIFFERENTIAL and the 2093309078: DIFF.HOUSING to complete the final drive assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109050 | DIFFERENTIAL | Distributes torque between left/right axles |
| 0750117075 | TAPER ROLLER BEARING | Supports planetary carrier radial loads |
| 2093209094 | DIFFERENTIAL | Secondary differential for multi-axle drives |
| 2093309078 | DIFF.HOUSING | Encloses differential gear set |
| 0631100223 | SPRING PIN | Retains planetary gear on carrier pin |
| 0730300820 | THRUST WASHER | Reduces axial friction on gear faces |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to planetary carrier |
| 5838300811 | THRUST WASHER | Controls end-play in planetary assembly |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Mates with axle bevel gear for final drive |
Frequently Asked Questions
Q: Can the 2097.310.026 planetary gear be used in a WG180 transmission?
A: Yes, but only when paired with the correct carrier assembly and 0750117075: TAPER ROLLER BEARING. The gear itself is dimensionally identical across WG100-WG200 models, but the carrier width varies.
Q: How do I confirm this is the genuine OEM part and not an aftermarket copy?
A: Genuine ZF parts have a laser-etched part number on the gear face. The 2097.310.026 should also show a ZF logo and heat treatment batch code. Counterfeit gears often lack the case-hardened depth of 0.8-1.2 mm.
Q: What is the typical service life of this planetary gear under normal conditions?
A: With proper lubrication and no contamination, the gear typically lasts 8,000-12,000 operating hours. Premature failure is often linked to a worn 2097309085: DIFFERENTIAL AXLE causing misalignment.
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ZF 2097.310.026 PLANETARY GEAR – Gear RFQ Support
Use ZF 2097.310.026 PLANETARY GEAR as the reference when requesting gear support. Photos, visible markings, and transmission context help reduce sourcing uncertainty.
Part-Number Summary
Use ZF number 2097.310.026 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: OUTPUT
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 | 2097.310.026 |
|---|---|
| Normalized SKU | 2097310026 |
| Part name | PLANETARY GEAR |
| Product category | gear |
| RFQ support | Part-number lookup and documentation review |
| Media support | Product photo or diagram review when available |
| Weight | 10.94 |
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.
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