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Advance 40A Marine Gearbox

Oct 12, 2022 | 40A Series, Medium-Low Duty | 0 comments

Advance 40A Marine Gearbox

The speed input range of the Advance 40A marine gearbox is 750-2000 RPM, with engine input power from 40 kW to 58.8 kW. the center distance is 142 mm, the reduction ratio range is 2.07-3.83, the transmission capacity range is 0.02-0.0294 kW/RPM, the rated propeller thrust is 8.8 KN, and the input shaft is in the train Opposite to the output shaft.

Advance 40A marine gearbox is composed of transmission shaft, output coupling, input coupling, oil pressure gauge, oil Filter, control system, oil pump and other important components.

Advance 40A marine gearboxes provides two types of control system which are push-pull flexible shaft, electric control for customers to choose. To meet the different requirement of coupling with different engine brand and models, Advance 40A marine gearboxes provide different SAE size coupling and housing including SAE 1 2 3, flywheel SAE 14 11.5 is available……

All of our Advance 40A 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.

Advantages Of Advance 40A Marine Gearbox

  • It has the functions of reversing, clutching, and deceleration, and can be matched with various marine diesel engines with equivalent torque to form a unit. Applicable to all kinds of medium and small ships.

  • The gearbox has a compact structure and can be controlled by a variety of control methods. The operation is light and sensitive, and it can be operated from a distance, which is convenient for driving and machine integration.

  • The advanced design makes the connection of the gearbox very soft, easy to maintain, more durable, and has the characteristics of large transmission power, small size and light weight.

  • The toothed elastic input coupling and connection cover can be matched with various flywheels and flywheel shells to connect with the host, easy installation and beautiful appearance

  • With excellent deceleration effect and strong bearing propeller thrust

  • Professional gearbox specialists and after-sales service, spare parts directly available from stock.

Technical Specifications

Gearbox Model:40A
Input Speed:750 – 2000 RPM
Power:58.8 kW @ 2000 RPM
Center Distance:142 mm
Trans.Capacity:0.0294 kW / RPM
Reduction Ratio:2.07 2.96
Rated Thrust:8.8 kN
Dimension:490 mm * 670 mm * 620 mm
Net Weight:225 kg
Lead Time:15-30 Working Days
Payment Terms:T/T ,L/C

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Input Speed

Trans. Capacity




40A750-2000 r/min0.0294 kW/RPM58.8 kW @ 2000 RPM490 mm * 670 mm * 620 mmMechanical / Electrical

Technical Specifications of Advance 40A Marine Gearbox

Model40AInput Speed(r/min)750-2000Center Distance(mm)142
Reduction Ratio(i)2.07 2.96Trans.Capacity(kW/rpm)0.0294Power(kW)58.8 kW @ 2000 RPM
3.440.023547 kW @ 2000 RPM
3.830.0240 kW @ 2000 RPM
Rated Thrust(kN)8.8Dimension(mm)490 * 670 * 620Net Weight(kg)225
FlywheelSAE14 11.5Bell HousingSAE1 2 3ControlsMechanical/Electrical
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 40A Medium-Low Duty 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 40A Medium-Low Duty 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 Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.

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Sales Team

Marine Sales - Mrs. Gazit Wong WhatApp-Icon

Marine Sale - Mrs. Nora Chen WhatApp-Icon

Ventas españolas - Mrs. Vuctiria WhatApp-Icon

Sales Manager - Mrs. Wendy Fu

Sales Director - Mr. Jasper Lee       WhatApp-Icon

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