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Reduction Gearbox With Belzona® Chocks On Fishing Boat



Marine (MRNE)



Gaskets, Seals and Shims (GSS)


Customer Location:

Fishing Boat, Peru


Application Date:

September 2015


Application Situation:

Speed reducer gearbox of the main engine of the propulsion system on fishing boat. Machine room.



The propulsion system has been aligned. The reduction gearbox must be placed on chocks that would not change their height with occasional compression due to weight of the gearbox and the high torque applied to the anchor bolts, and maintain alignment.



Belzona 7111 (Marine Grade)



Marine steel in the cockpit support and cast steel in the base of the engine and box.


Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflet GSS-12 and Belzona 7111 IFU.


Belzona Facts:

After pouring Belzona 7111 in the two dam casings and after curing was completed, the engine was supported and the anchor bolts were tightened, the variation due to compression was measured and was homogeneous and only 0,001”, completely acceptable and safe for alignment.


Photographs Description

  1. Naval propulsion reduction gearbox
  2. Filling the dam by pouring
  3. Exact adjustment with torque wrench
  4. Completed project with minimum variation which does not affect alignment
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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