Overview
The ZF 0750.111.145 SHAFT SEAL is a critical OEM genuine component engineered specifically for the WG series of industrial transmissions, including the WG260. This precision seal sits at the output shaft interface, preventing fluid migration and maintaining internal pressure integrity. As a direct replacement part, the SKU 0750.111.145 ensures a factory-spec barrier against contaminants while preserving lubrication within the gear train. When paired with a robust TRANSMISSION HOUSING, this seal forms the first line of defense against operational wear.
Symptoms of Failure
- Oil leakage at the output shaft flange — A visible drip or wet spot beneath the transmission bell housing indicates the seal lip has hardened or cracked, allowing transmission fluid to escape.
- Gear slipping under load — As the seal degrades, pressure loss can cause delayed engagement or erratic shifting, particularly in WG260 and WG258 units.
- Contaminated fluid from external debris — A failed seal permits dirt and moisture ingress, leading to accelerated wear on bearings and synchronizers.
- Whining or grinding noise during operation — Reduced lubrication from fluid loss creates audible friction at the shaft interface, often mistaken for bearing failure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0750.111.145 |
| Material | Nitrile rubber (NBR) with steel reinforcement |
| Inner Diameter | 75 mm |
| Outer Diameter | 100 mm |
| Width | 12 mm |
| Weight | 0.045 kg |
| OEM Reference | ZF 0750.111.145 |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This shaft seal is designed for ZF WG-series transmissions, specifically the WG180, WG200, WG250, WG251, WG258, WG260, WG261, WG308, and WG311 models. It fits output shaft diameters of 75 mm and is commonly used in construction equipment, agricultural machinery, and industrial powertrains. For complete assembly, ensure the HOUSING and COVER are inspected for wear. Secure the seal using a HEXAGON SCREW to maintain proper clamping force.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4646101028 | TRANSMISSION HOUSING | Encloses gear assembly and supports shafts |
| 4646301095 | HOUSING | Provides mounting surface for seals and bearings |
| 4646301087 | COVER | Seals the transmission end and retains lubricant |
| 0636015304 | HEXAGON SCREW | Fastens cover and housing components |
| 0636101828 | CAP SCREW | Secures additional cover plates |
| 4646301102 | COVER SHEET | Protects internal components from debris |
| 4646301098 | COVER SHEET | Secondary sealing layer for high-torque applications |
| 0730365125 | TYPE PLATE | Identifies transmission model and serial number |
| 0631311009 | GROOVED STUD | Aligns housing and cover during assembly |
| 0636101193 | CAP SCREW | Fastens type plate and auxiliary brackets |
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