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Marine reduction gears

Proven single-input / output design, offering a variety of power take-offs enabling large shaft generators to be driven, and electric motors to feed in power for get-you-home propulsion, or as part of a hybrid system.

Our marine reduction gearbox has a proven history in providing reliable and efficient drive technology to offshore, merchant, passengers and various other market segments of marine industries. Our new standard design offerings for single in – single out reduction gearbox (Vertical and Horizontal version) is applicable for maximum continuous engine power rating from 2 000KW to 18 000KW delivering maximum output torque ranging from 90 to 1350 KNm. 

Key features

  • GHC type: max. torque output - 90 to 950 kNm
  • Available with a range of both vertical and horizontal shaft offsets
  • Four configurations can be specified:
    • Standard GHC
    • P – with primary (power take in/off) PTI/PTO
    • S – with secondary PTO
    • SC – with secondary PTO and clutch

Technical data

Mode no. Descr.     Gear configuration Gear configuration
Mode no. Descr. No PTI/PTO Primary PTI/PTO Secondary PTI/PTO Secondary PTI/PTO w/clutch
Mode no.  Descr. - P or KP S or KS SC or KSC
1 Propulsion only OK Will spin generator Will spin generator OK
2 Propulsion + PTO Not possible OK Check power system design and DP requirements Check power system design and DP requirements
3 Propulsion + PTI Not possible OK OK OK
4 PTI only Not possible Not possible OK OK
5 PTO only Not possible OK Not possible Not possible

PTO / PTI shaft configurations

Three different standard options for PTO/PTI shaft. i.e:

  • Primary PTO/PTI shaft (Ex:-850GHC-P600)
  • Secondary PTO/PTI shaft (Ex:-850GHC-S600)
  • Secondary PTO/PTI shaft with clutch (Ex:-850GHC-SC600)

In addition, non-standard options such as - Primary and Secondary PTO shaft with twin clutch may also be available on request (Ex:-850GHC-PC/SC600). All these variants are applicable for gearbox sizes ranging from 550 to 1280.

Hydraulic systems

There are three different options available based on hydraulic systems:

  • GHC design: - Integrated hydraulic single tube system for gearbox lubrication & cooling, clutch actuation and propeller pitch control incorporated in the gearbox. This is applicable for vertical version ranging from 550 to 1080.
  • GDC design: - Integrated hydraulic twin tube system for gearbox lubrication & cooling, clutch actuation, propeller pitch control and propeller hub lubrication incorporated in the gearbox. This is applicable for vertical and horizontal version ranging from 650 to 1080.
  • GFC design: - Hydraulic system for gearbox lubrication & cooling, clutch actuation with separate FO box for propeller pitch control and propeller hub lubrication. This is applicable for vertical and horizontal version ranging from 550 to 1280.

Pumps

Our entire range of standard gearbox coupled with diesel/LNG engines are deliver with mechanical pumps for safety reasons and electric stand by pump separately installed. There is also a possibility to deliver the gearbox with additional electric stand by pump. This is applicable for vertical and horizontal version ranging from 550 to 1280. Gearbox running with electrical drives is deliver with electric standby pump aggregate.

Services and support

  • 24/7 Technical support

    Our 24/7 technical support team is there to help at any time, day or night, wherever your vessel is.

    Contact us:

  • Spares

    We understand the importance of having the right parts, available in the right place, at the right time.

  • Training

    Ensure that your crew is properly and thoroughly trained. This will reduce operational risk, downtime and maximise return on asset investment.