Sealed Sleeve-Bearing DC Fans Boast MTBF Of 200k Hours

The Challenger series of fans features a patented sealed sleeve-bearing system that has an exceptionally long life expectancy of more than 50,000 hours at 25°C (L10). Mean time between failures (MTBF) is in excess of 200,000 hours. The 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 types. Fans are offered in seven sizes ranging from 40 x 10 mm to 120 x 38 mm, and are available in 12-V dc and 24-V dc 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. Prices range from $5 to $15 each in lots of one to 99 depending on the model. ORION FANS, Dallas, TX. (800) 323-2439.