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VOL XXVIII, NO 209

Belzona® Repairs Air Handling Equipment

 
 

Industry:

Heating, Ventilation & Air Conditioning (HVAC)

 
 

Application:

Mechanical Power Transmission (MPT)

 
 

Customer Location:

Missouri, USA

 
 

Application Date:

July 2006

 
 

Application Situation:

Bearing seized for air handling equipment. 

 
 

Problem:

One of the bearings on this office building’s air handler system failed and severely gouged into the fan's shaft. The cooling system was nearly crippled with a triple digit, Midwest July heat.

 
 

Products:

Belzona 1111 (Super Metal)

Belzona 9411 (Release Agent)

 

Substrate:

Steel

 
 

Application Method:

The shaft was supported and the pillow block was removed, exposing the damaged area. A suitable former was treated with Belzona 9411 and the bearing surface was roughened and degreased. Belzona 1111 was mixed and applied, then the form was clamped in place. After a short cure, a new bearing was installed and the air handler was placed back on-line. The application was carried out in accordance with Belzona Know-How System Leaflet MPT-2.

 
 

Belzona Facts:

The bearing seized after business hours the night before. The maintenance staff knew about Belzona's emergency shaft repair so they called the local Belzona Distributor/Consultant for a repair the next morning.

 
 

Photographs Description

  1. Air handler fan threw a bearing in the early a.m.; building without conditioned air for over 12 hours. 
  2. Customer secured the shaft for early a.m. repair. 
  3. Belzona repair completed before 6:00 a.m. 
  4. Completed application of shaft and ready to return to service that morning.
 
 
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For more information about Belzona visit: www.belzona.com