China Shaded Pole Motor,Unit Bearing Motor,EC Motor,External Rotor Motor,Showcase Motor factory,manufacturers,exporters,suppliers

This interesting but unfortunately not very useful device produces motion from electricity without magnetism being involved. It operates purely by thermal means, so it works on AC or DC, and the motor can rotate in either direction, determined by the initial spin which is usually required to get it going.

It simply consists of two ball-bearing races on a common conductive shaft, with the outer ring of each race being connected to a high current, low voltage power supply. An alternative construction is to fit the ballraces inside a metal tube, and mount them on a shaft with a non-conductive section (e.g. two sleeves on an insulating rod). This method has the advantage that the tube will act as a flywheel.

This picture shows the motor running. There is a rectangular white label on the right-hand flywheel, being blurred by the motion.

This entry was posted on Saturday, March 7th, 2009 at 9:03 pm and is filed under Unit Bearing Motor. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.