Canton, Ohio -- The Timken Co. has added line a polyurethane-based seal, Timken UltraWind P1 Seal to its wind-energy products and solutions.
The company describes the seal as a breakthrough wind-turbine bearing seal with the polyurethane design providinf increased resistance to abrasion for "longer wind-turbine service life and more robust performance than most other commonly used sealing materials.
Timken is introducing the seal this week at the American Wind Energy Association's Windpower 2011 Conference and Exposition in Anaheim, California.
"Seals play an integral role in maximising wind-turbine uptime and productivity because of their ability to prevent lubrication leakage and bearing contamination," said Hans Landin, director of process industries original equipment and wind energy at Timken, in a company statement.
"However, over time the cumulative impact of abrasive forces caused by varying loads and speeds, as well as extreme temperature fluctuations, rain, snow, debris and lubrication challenges, can dramatically reduce seal performance in wind-turbines. The new UltraWind P1 Seal is designed to address this problem by incorporating the latest polyurethane technology," Lundin added.
Other features of the seal include:
* A flexible sealing lip that is designed to handle any misalignment or run-out in the application of the bearing. The lip's special profile also helps minimise heat generation and cone wear while helping to accommodate bearing deflections;
* A corrosion-resistant, stainless steel garter spring that helps prevent rust;
* A machined design for a broader, more diverse range of applications, plus ease of installation via stress minimization. This design also allows for multiple positions at the cone lip OD contact; and
* A cross-sectional size of 25 mm x 32 mm so the UltraWind P1 Seal designed to easily retrofit standard elastomer seals.