GRAPHALLOY ®For Bearings in Damper ApplicationsDampers are a maintenance problem for many companies. They experience high temperatures, require frequent greasing, and are often located in difficult to access areas.
Why Engineers Choose Graphalloy for DampersGRAPHALLOY bearings are ideal for damper applications because they eliminate the need for oil or grease, withstand extreme temperatures, and continue to operate reliably in difficult environments where conventional bearings often seize or fail. GRAPHALLOY provides unique advantages because it combines the properties of graphite and metal. The graphite structure can be compared to a deck of cards with individual layers that are able to easily slide off the deck. This phenomenon gives the material a self-lubricating ability that is matched by no other material. External lubricants are simply not necessary. The material continues to work at temperature extremes. It is available as cylindrical bushings, split and metal backed bushings, as well as pillow block and flange units. Grades and designs are engineered to best serve the application. Why Graphalloy for Dampers
Where to Use GRAPHALLOY® Pillow Block and Flange Block Units
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Successful Case Histories with Graphalloy for Dampers
A power plant in the Midwest had difficulty operating the dampers that control the flow of preheated air into the combustors. The hot air quickly dried out the lubricant in the steel damper bearings, causing the dampers to seize. The problem was solved by replacing the steel bearings with self-lubricating GRAPHALLOY bearings. These new bearings have been in operation for years without a single failure. The plant has also seen substantial savings in replacement bearing costs and labor. Ten Years and Counting, No Failures
June 17, 2020 |
GRAPHALLOY® solves these problems with self-lubricating bearing
materials and assemblies designed for reliable, maintenance-free operation in
demanding damper applications.
Power Plant Sees Longer Bearing Life
A windbox damper manufacturer needed four-bolt flange mount assemblies that
could handle temperatures up to 800°F and provide self-alignment
capability. They selected the 845F4 GRAPHALLOY assembly. They liked the
self-aligning method and the material's capability up to 1000°F. They
have experienced 10 years and counting without any failures.
