Advance GCHT91 Marine Gearbox
The speed input range of the Advance GCHT91 marine gearbox is 300-800 RPM, with engine input power from 2880 kW to 7680 kW, the reduction Ratio is 4.5-6.0,the transmission capacity range is 9.6 kW/RPM, the rated propeller thrust is 1000 KN, the center distance is 1190 mm, and the input and output horizontal heterocenterr.
Advanced GCHT91 marine gearbox can form the main propulsion system of the ship with the main engine and adjustable propeller, with the functions of clutch, deceleration and bearing propeller thrust, and can be configured with auxiliary power output (PTO) and auxiliary power input (PII), etc. The CPP oil dispenser is installed at the front of the gearbox output according to the demand. The advanced GCHT91 marine gearbox provides two types of maneuvering control, pneumatic control and electric control, for users to choose. To meet the different requirements for coupling with different makes and models of engines, the Advanced GCHT91 marine gearbox is available in engine flywheel sizes.
All of our Advance GC series marine gearbox can provide CCS classification certificate, some of series can provide international classifications with extra costs which mainly including French BV, British LR, American ABS, Japanese NK , Norway DNV-GL, Russia RS, South Korea KR, Italy RINA and other classification societies.
1. Gearbox novel structure, so that its use becomes very reliable. The excellent design makes the gearbox and engine arrangement more soft and smooth.
2. It can be matched with high-speed diesel engines at home and abroad, and can be arranged in vertical, horizontal and inclination according to the needs of users.
3.The gearbox have adapted to combined design, and all running parts have been carefully designed and machined to the highest standards for less wasted fuel, smooth operation which can be fitted to most engine models.
4.1-stage deceleration, the input and output levels are off-center, and the running direction is the same. It has the functions of double input, single output and clutch deceleration.
5.Professional gearbox specialists and after-sales service, spare parts directly available from stock.
Technical Specifications
Basic Introduction of Advance GCHT91 Marine Gearbox
Genset Model: | GCHT91 |
Input Speed: | 300-800 RPM |
Power: | 2880-7680 kW |
Center Distance: | 1190 mm |
Trans.Capacity: | 9.6 kW/RPM |
Reduction Ratio: | 4.50-6.00 |
Rated Thrust: | 1000 kN |
Dimension: | N/A |
Net Weight: | N/A |
Lead Time: | 15-30 Working Days |
Payment Terms: | T/T ,L/C |

Model | Input Speed | Reduction Ratio | Trans. Capacity | Rated Thrust | Center Distance |
GCHT5 | 400-1800 r/min | 4.50-5.95 | 0.57 kW/r/min | 120 KN | 445 mm |
GCHT6 | 400-1800 r/min | 4.50-5.95 | 0.72 kW/r/min | 170 KN | 480 mm |
GCHT9 | 400-1800 r/min | 4.50-5.95 | 0.96 kW/r/min | 220 KN | 545 mm |
GCHT11 | 400-1600 r/min | 4.52-5.95 | 1.292 kW/r/min | 220 KN | 570 mm |
GCHT15 | 400-1600 r/min | 4.46-5.96 | 1.64 kW/r/min | 270 KN | 630 mm |
GCHT20 | 400-1400 r/min | 4.50-5.95 | 2.12 kW/r/min | 300 KN | 680 mm |
GCHT26 | 400-1200 r/min | 4.58-5.95 | 2.825 kW/r/min | 360 KN | 750 mm |
GCHT33 | 400-1200 r/min | 4.54-5.95 | 3.64 kW/r/min | 540 KN | 820 mm |
GCHT44 | 400-1200 r/min | 4.52-5.96 | 5.05 kW/r/min | 600 KN | 924 mm |
GCHT66 | 300-900 r/min | 4.48-6.00 | 7.2 kW/r/min | 1000 KN | 1064 mm |
GCHT77 | 300-900 r/min | 4.5-6 | 8.111 kW/r/min | 1000 KN | 1100 mm |
GCHT91 | 300-800 r/min | 4.5-6 | 9.6 kW/r/min | 1000 KN | 1190 mm |
GCHT108 | 200-800 r/min | 4.5-6 | 11.282 kW/r/min | 1400 KN | 1230 mm |
GCHT115 | 200-650 r/min | 4.5-6 | 12.063 kW/r/min | 1400 KN | 1260 mm |
GCHT135 | 200-650 r/min | 4.5-6 | 14 kW/r/min | 1400 KN | 1350 mm |
GCHT170 | 200-800 r/min | 4.5-6 | 17 kW/r/min | 1400 KN | 1430 mm |
——END—— |
Coming Soon
ANGLE OF TILT | ||||
Name | Transverse Direction | Longitudinal Direction | ||
Heeling | Rolling | Heeling | Rolling | |
Marine Gearbox | 15° | 22.5° | 5° | 7.5° |
——END—— |

Optional Accessories of Advance GCHT91 Marine Gearbox | |||
Bell Housing | 195C | Input Coupling | 1. Highly Flexible Coupling |
/ | 2. Toothed Input Coupling | ||
Direction of Input Shaft Rotation | 1. Anti-clockwise (Facing the Output End) | VDO | Gearbox Pressure Visible on Bridge |
2. Clockwise (Facing the Output End) | |||
Alarm Device | 1. Temperature | Control System | 1. Mechanical |
2. Working Pressure | 2. Electrical | ||
3. Lubricating Oil Pressure | 3. Pneumatical | ||
Gauge | Oil Temperature | ||
Modifiable Components of Advance GCHT91 Marine Gearbox | |||
Special Reduction Ratio | According to Customer’s Special Requirements | Replacement of Imported Bearing | 1. Stronger Endurance |
2. Longer Service Life | |||
3. Higher Limit Speed | |||
PTO | Power Take Off | Output Shaft Coupling | Based on Customers data to produce |
——END—— |

Marine Gearboxs Conventional Wearing Parts | |||
External disc | Internal disc | Sealing | Piston ring |
Gasket | Rubber sealing | Thrust plate | Filter |
Coil type filter | Packing | O ring | Input shaft assembly |
Transmission shaft assemby | Output shaft assembly | Hydraulic control system | |
——END—— |
![]() | DCEC | ![]() | DCEC |
CCEC | CCEC | ||
Deutz | Deutz | ||
Weichai | Weichai | ||
![]() | Medium-Low Duty | ![]() | BCPÂ | TBP |
Medium-Heavy Duty | LPSP/HPSP |Â CSP | ||
Light Duty & High Speed | CFPÂ | WSP | ||
 Gw Series | FBP| DSP | ||
![]() | DCEC | ![]() | CDQY |
CCEC | CDDY | ||
Deutz | CJRZ | ||
Weichai | CDRZ |
Note: All Above Data are Just for Referenece, All Data Might Change Without Notices or Update, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.

Engine Sale Manual

Installation Drawing

Installation Manual

Operation Manual

Parts Catalogue

Report & Certifcate
Other Models in this Series
Products Not Available
The relevant products still under developing or waiting to be update, please contact our sales team for latest updates.