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Belzona® Rebuilds Conveyor Drive Shaft In Place



General Industry (GIND)



Mechanical Power Transmission (MPT)


Customer Location:

BC, Canada


Application Date:

June 2009


Application Situation:

Conveyor drive shaft



This 8” diameter shaft carries the head pulley of a large conveyor belt. The bearing seat on the drive end was heavily scored worn more than ¼” undersize.



Belzona 1321 (Ceramic S-Metal)

Belzona 9411 (Release Agent)





Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflet MPT-2. A split mould was machined to size, and coated with mould release agent. The seat area on the shaft was prepared with an angle grinder, and the mould clamped in place. Then Belzona 1321 was mixed and injected into the mould. When the mould was removed, the cured Belzona material forms a new bearing seat.


Belzona Facts:

Belzona materials do not shrink during cure. This type of repair is extremely accurate, yet will carry the weight of this conveyor shaft, which supports a 10-ton counterweight. This Belzona repair was completed in less than 24 hours.


Photographs Description

  1. Damaged bearing seat
  2. Split mould coated with release agent
  3. Mould clamped on shaft with injection tubes in place
  4. Shaft with repaired bearing seat ready for service
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