Overview
The ZF 0750.115.356 NEEDLE SLEEVE is a precision-engineered bearing component designed to reduce rotational friction and support radial loads within the clutch or planetary gear assembly of heavy-duty ZF transmissions. This OEM genuine part, identified by SKU 0750.115.356, sits between rotating shafts and stationary housings, ensuring smooth torque transfer and minimal wear. It is a critical wear item that maintains proper gear alignment and prevents metal-to-metal contact under high-stress operating conditions.
Symptoms of Failure
- Transmission whining or grinding noise during gear engagement: A worn needle sleeve allows excessive shaft play, producing audible metallic sounds that intensify under load.
- Oil seepage around the housing interface: Deterioration of the sleeve’s sealing surface can lead to fluid migration, often visible as wet spots near the 4143101009: HOUSING or 4143301025: HOUSING.
- Intermittent gear slipping or delayed engagement: Loss of bearing integrity disrupts clutch pack alignment, causing hesitation or slipping during shifts.
- Increased vibration in neutral or drive: Radial play from a collapsed sleeve transmits imbalance through the drivetrain, felt as chassis shudder.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0750.115.356 |
| Inner Diameter | 35 mm (estimated) |
| Outer Diameter | 42 mm (estimated) |
| Length | 25 mm (estimated) |
| Material | Case-hardened steel with phosphate coating |
| Weight | 0.045 kg (estimated) |
| OEM Reference | ZF 0750.115.356 |
Compatibility
This needle sleeve is engineered for ZF WG 180 Series, WG 200 Series, and WG 65 Series transmissions. It is commonly used in WG180, WG200, and WG65 models found in off-highway trucks, wheel loaders, and agricultural machinery. For proper installation, always pair this sleeve with a new 0634313603: O-RING and verify housing integrity using the 4475280018: SCREW PLUG for secure sealing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4143101009 | HOUSING | Encloses planetary gear set; supports sleeve alignment |
| 4143301025 | HOUSING | Rear housing for clutch pack retention |
| 0634313603 | O-RING | Seals sleeve-to-housing interface against fluid loss |
| 4475280018 | SCREW PLUG | Closes oil passages; prevents contamination |
| 0501342341 | SUPPORT RING | Distributes axial load on the sleeve |
| 4143298457 | SEAL KIT | Complete gasket set for housing rebuild |
| 0634313591 | O-RING | Secondary seal for high-pressure circuits |
| 0636101068 | CAP SCREW | Fastens housing halves with precise torque |
| 4143221013 | THROTTLE VALVE | Modulates hydraulic flow to clutch packs |
| 0634304484 | O-RING | Seals valve body to prevent cross-leakage |
