KHIA headerKnow-How in Action


Belzona® Reseats New Rudder Bearing Bush



Marine (MRNE)



Ships and Offshore Structures (SOS)


Customer Location:

Dockyard, Bulgaria


Application Date:

January, 2008


Application Situation:

Ships rudder bearing



Severe corrosion and impact wear of the bush housing resulted in annular gap between the housing and the bearing bush in excess of 8 mm.



Belzona® 1221 (Super E-Metal)
Belzona® 1321 (Ceramic S-Metal)


Cust Iron and Bronze


Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflet SOS-9. The injection of Belzona® 1321 was done through injection ports drilled in the bearing wall.


Belzona Facts:

Keeping the bush in place and insulated from the housing with Belzona provides resistance against galvanic corrosion.


Photographs Description

  1. Severe corrosion on the housing clearly evident after blasting
  2. New bearing bush with drilled injection ports and jacking bolts for alignment
  3. Sealing the bottom of the bush with Belzona® 1221
  4. Injection of Belzona® 1321 completed
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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