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Inspection and repair service on HANGZOU ADVANCE GEARBOX GWC 6066 gearbox

Inspection and repair on HANGZOU ADVANCE GEARBOX GWC 6066 gearbox

  • HANGZOU ADVANCE GEARBOX gearbox
  • GWC 6066
  • Input=___ rpm / ____ KW
  • Denmark

Scope of work:

We performed an inspection and repair on a gearbox HANGZOU ADVANCE GEARBOX GWC 6066.


This client from Denmark came to us with this HANGZOU ADVANCE GEARBOX GWC 6066. We inspected the gearbox and performed a repair. After a succesful testrun we shipped the gearbox back to the client.

This report presents the findings of the performed inspection onboard a ship. Location, Hirtshals, Denmark.

GBS international was invited to perform the below mentioned work.

Scoop of work:

- Inpection Propulsion gearbox, Hangzhou Advance GWC 6066

Micro pitting is found on the working flank of the pinion gear of the intermediate shaft AHEAD and working flank of the Bull gear of the output shaft.

Micro pitting is a phenomenon that can be found on (hardened) gears. Multiple factors can affect the development of micro pitting, most important factors are surface roughness, lubrication or an incorrect gear mesh. The damage shows itself by a matted grey colour of the teeth. This as outcome of surface fatigue. The development of the micro pitting can be stabilized or progressive. A progressive development can eventually cause more severe pitting, and scaling.



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Location - date:

Denmark - December 2017

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