CGC66.75 NGC marine gearbox features two-stage reduction, coaxial input/output, and an ahead/astern reversing clutch, designed for reliable marine propulsion. Rated input speed is 300-950 rpm, reduction ratio 2.05-6.12, and transmission capacity 4.650-13.742 kW/rpm. Manufactured by NGC Marine (Nanjing Accurate Marine Equipment Co., Ltd., NGC), it ensures efficient power transmission for a wide range of vessels.
CGC66.75 Scope of Supply
- Oil cooler
- Gear pump
- Filter
- Operating valve
- Two-stage control valve
- Monitoring meter
- Input flange
- Output flange
Technical Data of NGC Gearbox CGC66.75
| Input Speed (rpm) | Ratio | Transmission Capacity (kW/rpm) |
| 300-450 | 2.05 | 13.742 |
| 300-600 | 2.55 | 11.148 |
| 300-700 | 2.99 | 9.529 |
| 300-800 | 3.48 | 8.173 |
| 300-900 | 3.95 | 7.188 |
| 300-950 | 4.49 | 6.316 |
| 300-950 | 4.97 | 5.672 |
| 300-950 | 5.51 | 5.088 |
| 300-950 | 6.12 | 4.650 |
- Design & Function: Two-stage reduction with coaxial input and output shafts, same rotation direction, equipped with ahead/astern reversing clutch and reduction function.
- Shaft Arrangement: Input and output shafts are coaxial for compact installation and efficient power transmission.
- Thrust Capacity: Rated propeller thrust up to 730 kN.
- Dimensions: To be confirmed / as per drawing.
- Net Weight: Approximately 19000 kg.
Optional Configuration
- Control system options: Mechanical control, electrical control, or pneumatic control.
- Highly flexible coupling: Reduces torsional vibration and protects the drivetrain.
- Stand-by pumpset: Ensures reliable operation and system redundancy.
- Classification society compliance: Available with certification from major classification societies upon request.
- NGC CGC66.75 Marine Gearbox Technical Datasheet
- CGC66.75 NGC Gearbox Installation & Service Manual
- CGC66.75 Marine Reduction Gearbox Dimensional Drawing (PDF)
- NGC Marine Gearboxes & Propulsion Products Catalogue
Specifications subject to change without prior notice in the interest of continual product improvement. Contact our sales representative for engineering specifications, survey society approvals and classifications.