Select Page

Advance GCH660 Marine Gearbox

The speed input range of the Advance GCH660 marine gearbox is 400-1200 RPM, with engine input power from 2020 kW to 6060 kW, the reduction Ratio is 2.00-3.95,the transmission capacity range is 5.05 kW/RPM, the rated propeller thrust is 540 KN, the center distance is 668 mm, and the input and output horizontal heterocenterr.

Advanced GCH660 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 GCH660 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 GCH660 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.

Technical Specifications

Basic Introduction of  Advance GCH660 Marine Gearbox

Gearbox Model:GCH660
Input Speed:400-1200 RPM
Power:2020-6060 kW
Center Distance:668 mm
Reduction Ratio:2.00-3.95
Rated Thrust:540 kN
Net Weight:N/A
Lead Time:15-30 Working Days
Payment Terms:T/T ,L/C
The picture of Performance Curve-DCEC Cummins Industrial Engine


Input Speed

Reduction Ratio

Trans. Capacity

Rated Thrust

Center Distance

GCH320400-1800 RPM1.97-4.000.57 kW/RPM100 KN320 mm
GCH350400-1800 RPM2.00-4.050.72 kW/RPM113 KN350 mm
GCH390400-1800 RPM2.03-3.950.96 kW/RPM140 KN390 mm
GCH410400-1600 RPM2.00-3.951.292 kW/RPM175 KN410 mm
GCH490400-1400 RPM2.03-3.952.12 kW/RPM270 KN490 mm
GCH540400-1200 RPM1.97-3.952.825 kW/RPM290 KN540 mm
GCH590400-1200 RPM1.97-3.953.64 kW/RPM360 KN590 mm
GCH660400-1200 RPM2.00-3.955.05 kW/RPM540 KN668 mm
GCH750300-950 RPM1.97-3.957.2 kW/RPM730 KN750 mm
GCH760300-900 RPM1.94-3.958.111 kW/RPM750 KN768 mm
GCH850300-800 RPM1.97-3.959.6 kW/RPM800 KN855 mm
GCH880200-650 RPM2.0-3.9512.063 kW/RPM1000 KN880 mm
GCH900200-800 RPM2.0-4.1011.282 kW/RPM980 KN900 mm
GCH950200-650 RPM2.0-3.9514 kW/RPM1000 KN965 mm
GCH1000200-800 RPM2.0-3.9517 kW/RPM1400 KN1018 mm

Technical Specifications of Advance GCH660 Marine Gearbox

ModelGCH660Power(kW)2020-6060Center Distance(mm)668
Input Speed(r/min)400-1200Reduction Ratio(i)2Trans. Capacity(kW/rpm)5.05
Rated Thrust(kN)540Net Weight(kg)N/AControlsElectrical/Pneumatical
  1. The Marine gearbox has the function of reverse, clutch, deceleration and the thrust of the propeller, which is equipped with the main engine to form the Marine power unit. 2. The “transfer capacity” refers to the ratio of the engine’s rated power to the rated speed, and the reduction ratio corresponds to the transmission capacity, which should be less than the number be offered. 3. The gearbox and engine shafting are not allowed to use rigid connection, and the bracket is recommended to be installed on the same rigid support.If the engine is mounted on the elastic support, and the gearbox is installed on the rigid support, please contact the technical department of the company to select the suitable high elastic coupling. 4. The weight of the gearbox is approximation, for different reduction ratio the weight is different. 5. Due to the technical improvement of the products, the products may change without notice. For any other questions please contact our sales engineer.


NameTransverse DirectionLongitudinal Direction
Marine Gearbox15°22.5°7.5°

Optional Accessories of Advance GCH660 Marine Gearbox

Bell Housing195CInput Coupling1. Highly Flexible Coupling
/2. Toothed Input Coupling
Direction of Input Shaft Rotation1. Anti-clockwise (Facing the Output End)VDOGearbox Pressure  Visible on Bridge
2. Clockwise (Facing the Output End)
Alarm Device1. TemperatureControl System1. Mechanical
2. Working Pressure2. Electrical
3. Lubricating Oil Pressure3. Pneumatical
Gauge Oil Temperature

Modifiable Components of Advance GCH660 Marine Gearbox

Special Reduction RatioAccording to Customer’s Special RequirementsReplacement of Imported Bearing1. Stronger Endurance
2. Longer Service Life
3. Higher Limit Speed
PTOPower Take OffOutput Shaft CouplingBased on Customers data to produce

Marine Gearboxs Conventional Wearing Parts

External discInternal discSealingPiston ring
GasketRubber sealingThrust plateFilter
Coil type filterPackingO ringInput shaft assembly
Transmission shaft assembyOutput shaft assemblyHydraulic control system

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.

The picture of Sale Manual showing the accessories and scopes of supply.

Engine Sale Manual

The picture of Installation Drawing showing the accessories and scopes of supply.

Installation Drawing

The picture of Installation Manual showing the accessories and scopes of supply.

Installation Manual

The picture of Operation Manual showing the accessories and scopes of supply.

Operation Manual

The picture of Engine Parts Catalogue showing the accessories and scopes of supply.

Parts Catalogue

The picture of Test Report and Certifcate showing the accessories and scopes of supply.

Report & Certifcate

WhatsApp Online logo

Sales Team

Marine Service-SeaMacWhatApp-Icon

Automotive Service-DuraMacWhatApp-Icon

Industrial Service-ConeMacWhatApp-Icon

Generator Service-SINOGENWhatApp-Icon

Pump Service-PumpMacWhatApp-Icon

Parts Service-PartMacWhatApp-Icon

Sales Manager - Mrs. Wendy Fu

Sales Director - Mr. Jasper Lee       WhatApp-Icon

Shipping Service

Contact EMAC Now!

Subscribe To Our Newsletter

Subscribe To Our Newsletter

Subscribe to get the latest updates from

You have Successfully Subscribed!

Pin It on Pinterest