Chongqing GWK4250 marine gearbox ratio range is 4.5-6 with power factor 1.1460-1.5900kW/rpm. Input and output shafts are vertically offset, one-stage reduction, with a clutch, can only be clutched and not reversed.
GWK4250 Scope of Supply
- Oil cooler
- Gear oil pump
- Filter
- Dipstick
- Pressure gauge
- Controller
- Check valve
- Input shaft flange
- Output shaft flange
Technical Data of Chongqing Gearbox GWK4250
| Input Speed (rpm) | Ratio | Power Factor (kW/rpm) |
| 400-1600 | 4.5 | 1.590 |
| 5.0 | 1.375 | |
| 5.5 | 1.250 | |
| 6.0 | 1.146 |
- Input and output shafts are vertically offset
- Thrust: 270kN
- Lubricating oil pressure: 0.04-0.4Mpa
- Lubricating oil temperature: ≤ 80℃
- Oil grade: CD30, CD40 or diesel engine oil
- Cooling water pressure: ≤0.2 Mpa
- Cooling water inlet temperature: ≤32 ℃
- Engine speed at reversing time: ≤60%ne (ne — Engine rated speed)
- Reversing time: ≤ 15s
- Net weight: 4100kg
Optional Configuration
- Mechanical control / Electrical control / Pneumatic control
- Highly flexible coupling
- Stand-by pump
- Classification society
- GWK4250 Gearbox Datasheet
- Chongqing Gearbox Catalogue
- Service Manual
- PDF Drawing
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.