"Computer fans are basically brushless motors with blades attached to them in order to move air. They are common-place inside a computer and can be constructed with different technologies. In this tutorial we will be examining one of the components found in fans that is the subject of a lot of confusion, the bearing."
FULL STORY @
HARDWARESECRETS (http://www.hardwaresecrets.com/article/Anatomy-of-Computer-Fans/1039)
