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 The Challenger Series
fans feature a unique patented sealed sleeve bearing system that has an exceptionally long life
expectancy of more than 50,000 hours at 25°C (L10). MTBF is in excess of 200,000 hours. The
new sealed sleeve fan technology retains lubricant by using metal foils that serve as a guard to
redirect and recycle the lubricant. The fans were developed in response to a continuing demand for
fans with a wider temperature range and longer life than sleeve bearing fans, but at a lower cost in
comparison to traditional ball bearing fans.
The Challenger Series sealed sleeve fans are offered in seven sizes ranging from 40 x 10mm
to 120 x 38mm, and are available in 12VDC and 24VDC versions. Airflow ranges from 6.7 to 105
CFM.
The fans feature a brushless DC, auto restart, polarity-protected motor with a UL94V-0
plastic frame and impeller. The sealed sleeve fans are RoHS compliant.
Contact your local sales office or email info@powell.com for more information.
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