Sealed sleeve fans have 200,000-h MTBF

The Challenger series is family of sealed-sleeve bearing dc fans that provides more than 50,000-hour operation at 25C and 200,000-hour MTBF. The fan retains lubricant by using metal foils that serve as a guard to redirect and recycle the lubricant.

The sealed-sleeve fans are offered in seven sizes ranging from 40 x 10 mm to 120 x 38 mm, and are available in 12- and 24 Vdc versions. Airflow ranges from 6.7 to 105 cfm. The fans feature a brushless-dc auto-restart polarity-protected motor with a UL 94V-0 plastic frame and impeller. (From $5 to $15 — available now.)

Orion Fans/Knight Electronics , Dallas , TX
Kevin Knight 800-323-2439

http://www.orionfans.com