Overview
The ZF 0635.302.086 Axial Needle Cage is a precision-engineered bearing component designed to manage axial thrust loads within the planetary gear sets of ZF WG200 and WG65 series transmissions. This OEM genuine part, identified by SKU 0635.302.086, sits between rotating shafts and stationary housings to reduce friction during gear changes. It ensures smooth power transfer by maintaining correct clearance between the sun gear and the planetary carrier. Without this needle cage, the transmission’s internal load distribution becomes unstable, leading to premature wear on adjacent components like the 4616105413: OUTPUT shaft assembly.
Symptoms of Failure
- Whining or grinding noise during acceleration: A worn 0635.302.086 cage causes metal-on-metal contact, producing a distinct high-pitched whine that intensifies under load.
- Intermittent gear slipping in forward gears: When the axial needle cage loses its structural integrity, the planetary gear set loses alignment, resulting in sudden power loss or slipping during shifts.
- Metallic debris in transmission fluid: Flaking or fractured needles contaminate the oil, often visible as glitter-like particles during fluid changes, which can clog the 0732611049: FILTER INSERT.
- Oil leaks near the output flange area: Excessive axial play from a failed cage stresses the 4616203017: OUTPUT FLANGE seal, causing fluid seepage around the housing joint.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0635.302.086 |
| Type | Axial Needle Cage (Open-Ended) |
| Inner Diameter (ID) | 35 mm (estimated) |
| Outer Diameter (OD) | 48 mm (estimated) |
| Width / Height | 3.5 mm (estimated) |
| Material | Case-Hardened Steel (DIN 1.3505) |
| Weight | 0.012 kg (12 grams) |
| OEM Reference | ZF 0635.302.086 |
| Needle Count | 18 needles (estimated) |
Compatibility
This axial needle cage is engineered for ZF WG series transmissions, specifically the WG200 and WG65 models. It is a direct fit for the planetary carrier assembly in WG180, WG200, and WG65 gearboxes. The part also integrates with the 4616101117: TRANSMISSION HOUSING to maintain concentric alignment. For secure mounting, use the 0636011038: HEXAGON SCREW to fasten the retaining plate. Always verify your transmission serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105413 | Output | Transfers torque from planetary set to driveshaft |
| 4616203017 | Output Flange | Connects output shaft to driveline yoke |
| 4616101117 | Transmission Housing | Encloses gear train and supports bearings |
| 0636011038 | Hexagon Screw | Secures bearing retainers and covers |
| 0636016015 | Hexagon Screw | Fastens output flange to shaft |
| 0631306085 | Cylindrical Pin | Aligns housing halves during assembly |
| 0634313118 | O-Ring | Seals oil passages in valve body |
| 0732611049 | Filter Insert | Traps debris from worn bearings |
| 0634303718 | O-Ring | Prevents fluid leaks at pump cover |
| 0636610082 | Stud | Provides threaded mounting for bellhousing |
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