Overview
The ZF 0750.111.145 SELLO DEL EJE (Shaft Seal) is a critical OEM original component engineered for the WG260 series powershift transmission. This precision-molded elastomeric seal is installed at the output shaft interface, where it prevents hydraulic fluid migration and contaminant ingress. The part number 0750.111.145 corresponds directly to ZF’s factory specification for this dynamic sealing element. When mounted within the TRANSMISSION HOUSING, it creates a pressurized barrier that maintains system integrity during high-torque operations in construction machinery.
Symptoms of Failure
- Hydraulic fluid seepage at shaft exit point: Visible oil droplets or wetness around the transmission output flange, often noticed after equipment shutdown.
- Gradual pressure loss in forward/reverse circuits: Operators may detect sluggish gear engagement or delayed clutch pack response due to reduced system pressure.
- Contaminated transmission fluid: Dirt or water entering through a degraded seal causes fluid discoloration and accelerated wear of internal components.
- Audible whining from transmission area: Air ingestion past a worn seal creates cavitation noise, particularly during cold starts or under load.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number (SKU) | 0750.111.145 |
| OEM Reference | ZF 0750.111.145 |
| Seal Type | Rotary shaft lip seal (single lip with garter spring) |
| Inner Diameter | 75 mm (estimated) |
| Outer Diameter | 100 mm (estimated) |
| Width | 12 mm (estimated) |
| Material | Nitrile rubber (NBR) with steel reinforcement |
| Weight | 0.045 kg (approx.) |
| Operating Temperature Range | -40°C to +120°C |
| Max Shaft Speed | 3,000 RPM |
Compatibility
This seal is specifically validated for the ZF WG260 transmission series, commonly deployed in wheel loaders, graders, and heavy dump trucks. It also fits the WG180 and WG200 models when used with the appropriate HOUSING adapter. For proper installation, always pair with the COVER and secure using HEXAGON SCREW fasteners torqued to ZF specifications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4646101028 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4646301095 | HOUSING | Secondary housing for clutch pack assembly |
| 4646301087 | COVER | Sealing cover for access port |
| 0636015304 | HEXAGON SCREW | Fastener for housing attachment |
| 0636101828 | CAP SCREW | Threaded fastener for cover plate |
| 4646301102 | COVER SHEET | Thin protective plate |
| 4646301098 | COVER SHEET | Alternate protective plate variant |
| 0730365125 | TYPE PLATE | Identification label for transmission |
| 0631311009 | GROOVED STUD | Alignment pin for housing |
| 0636101193 | CAP SCREW | Secondary fastener for cover |
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