CGC63.71 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 300-1000 rpm, reduction ratio 2.02-5.95, and transmission capacity 4.137-12.228 kW/rpm. Manufactured by NGC Marine (Nanjing Accurate Marine Equipment Co., Ltd., NGC), it ensures efficient power transmission for a wide range of vessels.
CGC63.71 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 CGC63.71
| Input Speed (rpm) | Ratio | Transmission Capacity (kW/rpm) |
| 300-500 | 2.02 | 12.228 |
| 300-625 | 2.53 | 9.794 |
| 300-750 | 3.01 | 8.117 |
| 300-875 | 3.55 | 7.135 |
| 300-1000 | 4.11 | 6.008 |
| 300-1000 | 4.55 | 5.411 |
| 300-1000 | 5.04 | 4.888 |
| 300-1000 | 5.47 | 4.496 |
| 300-1000 | 5.95 | 4.137 |
- 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 710 kN.
- Dimensions: To be confirmed / as per drawing.
- Net Weight: Approximately 17500 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 CGC63.71 Marine Gearbox Technical Datasheet
- CGC63.71 NGC Gearbox Installation & Service Manual
- CGC63.71 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.