Overview
The ZF 0635.302.011 Axial Needle Cage is a precision-engineered OEM genuine component designed to manage axial thrust loads within ZF powershift transmissions. This needle cage sits between rotating shafts and stationary housings, reducing friction and ensuring smooth torque transfer under high-stress conditions. The SKU 0635.302.011 is critical for maintaining correct gear alignment and preventing metal-on-metal contact in the planetary gear sets. When installed alongside the 4108101057 HOUSING and 4108201177 HOUSING, this axial cage provides the necessary clearance and load distribution for long service life in construction machinery transmissions.
Symptoms of Failure
- Transmission whining or grinding noise during gear engagement — Worn needle rollers create uneven axial play, producing audible metallic sounds under load.
- Delayed or harsh shifting between forward and reverse — A failing 0635.302.011 cage allows shaft end-play, causing clutch packs to engage improperly.
- Metal debris in transmission oil filter or pan — Flaking or fractured needle cages shed fine metallic particles, contaminating the hydraulic system.
- Oil leaks near the bearing cover interface — Excessive axial movement can distort the 4108301304 BEARING COVER, compromising seal integrity.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0635.302.011 |
| Type | Axial Needle Cage (Open-Ended) |
| Inner Diameter (Nominal) | 35 mm |
| Outer Diameter (Nominal) | 42 mm |
| Width / Height | 3.0 mm |
| Material | Case-Hardened Steel (DIN 1.3505) |
| Weight | ~12 grams |
| OEM Reference | ZF 0635.302.011 |
| Related Gasket | 4108306173 GASKET |
| Related Shaft Seal | 0750110040 SHAFT SEAL |
Compatibility
This axial needle cage is a standard fitment in ZF WG180, WG200, and WG210 series powershift transmissions commonly used in wheel loaders, dozers, and excavators. It also appears in certain ZF 4WG-200 and 6WG-200 variants. The 0635.302.011 interfaces directly with the 0636302056 SCREW PLUG in the lubrication circuit and supports the 4108301304 BEARING COVER assembly. For exact model verification, always cross-reference your transmission serial number with the OEM parts catalog.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101057 | HOUSING | Encloses planetary gear set |
| 4108201177 | HOUSING | Rear transmission housing section |
| 0636302056 | SCREW PLUG | Seals oil gallery access port |
| 4108301304 | BEARING COVER | Retains axial needle cage assembly |
| 4108306173 | GASKET | Prevents oil leakage at bearing cover |
| 0750110040 | SHAFT SEAL | Dynamic seal for rotating shaft |
| 6053108155 | CONTROL COVER | Houses shift valve assembly |
| 6053308348 | CONTROL COVER | Alternate control cover variant |
| 0636010188 | HEXAGON SCREW | M8 fastener for housing joints |
| 0636010192 | HEXAGON SCREW | M10 fastener for bearing cover |
