KHIA headerKnow-How in Action

VOL XV, NO 17

Belzona® Anchors New Rudder Bushes In Position

 
 

Industry:

Marine (MRNE)

 
 

Application:

Ships and Offshore Structures (SOS)

 
 

Customer Location:

Shipping - International car transporter

 
 

Application Date:

April 2000

 
 

Application Situation:

Becker flap rudder slider bearings.

 
 

Problem:

The original bushes were bronze and had caused galvanic corrosion of the housing within one year, becoming loose.

 
 

Products:

Belzona® 1321 (Ceramic S-Metal)

 

Substrate:

Synthetic bearing and steel

 
 

Application Method:

The application was carried out in accordance with a modified version of Belzona Know-How System Leaflet SOS-9. Belzona®1321 functions as structural adhesive, support, and coating in this application.

 
 

Belzona Facts:

This method significantly reduced the installation time and cost for bearing replacement, and extended the lifetime of the component, by eliminating future galvanic, crevice, or general corrosion from this part of the rudder. Four rudders were repaired in less than a week and Belzona is used from new to prevent these problems.

 
 

Photographs Description

  1. Condition of corroded housing before repair
  2. Installation of the synthetic bearing, using Belzona 1321 as both adhesive and coating and “screwing” bearing into the housing
  3. Completed repair
  4. Location of the slider on top of the rudder flap
 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 Case study pic four

 

 
 
For more information about Belzona visit: www.belzona.com