Overview
The ZF 4699.302.146 SPUR GEAR is a precision-machined helical gear designed for the auxiliary drive train within the WG100, WG130, and WG131 transmission series. This OEM genuine part transmits rotational torque from the input shaft to the intermediate shaft, ensuring smooth power flow under heavy load conditions. The SKU 4699.302.146 is engineered with case-hardened alloy steel to withstand continuous high-torque applications in construction and agricultural machinery. It sits directly behind the main drive housing, meshing with the countershaft assembly to maintain gear synchronization.
Symptoms of Failure
- Whining or grinding noise during gear engagement: A worn 4699.302.146 spur gear produces a distinct metallic whine that intensifies under load, often misdiagnosed as bearing failure.
- Intermittent gear slipping under acceleration: When tooth profiles wear unevenly, the gear loses mesh contact, causing the transmission to momentarily slip before re-engaging.
- Metal debris in transmission oil: Flaking or pitting on the gear teeth deposits fine metallic particles into the lubricant, visible during oil changes as glitter-like contamination.
- Vibration through the gear lever or chassis: Eccentric wear on the gear’s bore or teeth creates harmonic vibrations that transmit through the driveline at specific RPM ranges.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4699.302.146 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Module | 4.5 mm |
| Number of Teeth | 28 |
| Outside Diameter | 135.0 mm |
| Bore Diameter | 45.0 mm (H7 tolerance) |
| Face Width | 32.0 mm |
| Weight | 1.85 kg |
| OEM Reference | ZF 4699.302.146 |
| Heat Treatment | Carburized & quenched (58-62 HRC) |
Compatibility
This spur gear is specifically validated for the ZF WG100, WG130, and WG131 powershift transmissions. It also fits the WG180 and WG200 series when used in auxiliary drive configurations, though the WG200 requires verification of the countershaft spline count. The gear is not compatible with the WG150 series due to differing tooth geometry. For proper installation, ensure the mating HOUSING (4699101043) and HOUSING (4699301106) are free of cracks. The HOUSING COVER (4699301015) must be torqued to spec, and the COVER (4699301085) should be inspected for warpage during reassembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101043 | HOUSING | Encloses the spur gear and supports bearing alignment |
| 4699301106 | HOUSING | Secondary housing for countershaft support |
| 4699301015 | HOUSING COVER | Seals the gear cavity and retains lubrication |
| 4699301085 | COVER | Protects the gear from external contaminants |
| 4699301014 | THREAD PROTECTIVE SHIELD | Prevents thread damage during assembly |
| 0634303980 | O-RING | Creates a static seal between housing halves |
| 0734307407 | PROTECTION CAP | Covers exposed splines during transport |
| 0634309600 | SHAFT SEAL | Prevents oil leakage at the gear shaft exit |
| 0630502032 | RETAINING RING | Secures the gear axially on the shaft |
| 0637885612 | BREATHER | Equalizes internal pressure and vents moisture |
ZF 4699.302.146 SPUR GEAR – Gear RFQ Support
PartsZF helps B2B buyers source ZF 4699.302.146 SPUR GEAR 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 4699.302.146 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: INPUT
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 | 4699.302.146 |
|---|---|
| Normalized SKU | 4699302146 |
| Part name | SPUR GEAR |
| 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
