1,000,000 rpm

  • Thread starter wolram
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  • #1
wolram
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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.
 

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  • #2
FredGarvin
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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.
 
  • #3
minger
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I'm surprised they didn't use some sort of air bearing.
 
  • #4
Danger
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I'm not sure if I want my dentist to find out about this or not.
 

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