UMC 765-U-AD Heavy Duty Gearbox
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Built for the Toughest Centre Pivot Irrigation Applications
The UMC 765-U-AD Heavy Duty Gearbox is UMC’s largest and most durable final drive gearbox, engineered specifically for centre pivot and lateral move irrigation systems operating in the harshest field conditions. Designed to handle heavy spans, corner systems, lateral carts, and high annual operating hours, the 765-U-AD delivers exceptional strength, reliability, and long service life. It is also a direct replacement for the proven UMC 760-U gearbox, offering improved load capacity, enhanced sealing technology, and longer gear life.
Whether you’re replacing a worn gearbox or upgrading your irrigation machine, the UMC 765-U-AD provides dependable performance season after season.
Features
- Heavy-duty final drive gearbox for centre pivot and lateral irrigation systems
- 50:1 gear ratio for reliable and efficient drive performance
- Massive 2.50″ steel output shaft for increased strength
- Designed for heavy spans, corner arms and lateral carts
- Patented Vented Internal Diaphragm reduces internal pressure and helps prevent oil leaks
- Enhanced gear materials improve load capacity while reducing wear and operating temperatures
- Cartridge input and output seals extend seal life and minimise contamination
- Largest output bearings in the industry for maximum durability
- Dual-ended input shaft suits multiple installation configurations
- External seal protectors for added reliability in harsh environments
- Large ¾” oil fill and drain plugs for easier servicing
- Supplied filled with extreme pressure gear oil
- Positive wheel register simplifies wheel installation
- Extra-long carriage bolts accommodate reinforced rims
- Available with optional bronze gear
- Incorporates UMC’s patented Four-Rib Design® for superior housing strength.
Specifications
| Specification | Details |
|---|---|
| Brand | UMC |
| Model | 765-U-AD |
| Gear Ratio | 50:1 |
| Output Shaft | 2.50″ Steel |
| Mounting Pattern | 16-Bolt or 9-Bolt (model dependent) |
| Lubrication | Extreme Pressure Gear Oil |
| Application | Centre Pivot & Lateral Move Irrigation Systems |
| Replacement For | UMC 760-U Gearbox |
Ideal Applications
The UMC 765-U-AD is recommended for:
- Centre Pivot Irrigation Systems
- Lateral Move Irrigation Systems
- Corner Systems
- Heavy Span Towers
- High-Hour Irrigation Machines
- Demanding Agricultural Irrigation Conditions.
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