1,000,000 rpm

  1. wolram

    wolram 3,720
    Gold Member

    http://www.sciencedaily.com/releases/2008/11/081114081213.htm

    Up to now, industrially-deployed motors have normally reached 250,000 revolutions per minute. Now, however, researchers from ETH Zurich’s Department of Power Electronics have developed a drive system in cooperation with its industrial partners that can achieve over 1,000,000 rpm.
     
  2. jcsd
  3. FredGarvin

    FredGarvin 5,087
    Science Advisor

    That's pretty cool. The first thing I thought was "how small is this thing going to be?" It is indeed tiny. I am most impressed by the bearings. Even with a ID of 1 mm, the dN for those things would still be 1 million which is pretty sporty.

    It's a shame they can't go into a bit more detail in the story.
     
  4. minger

    minger 1,498
    Science Advisor

    I'm surprised they didn't use some sort of air bearing.
     
  5. Danger

    Danger 9,879
    Gold Member

    I'm not sure if I want my dentist to find out about this or not.
     
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