RE: [PSUBS-MAILIST] motor seals

["Gary R. Boucher" <protek@shreve.net>]

     Probably.  Some of the rare-earth magnets are unbelievably 
strong.  Trolling motors operate with fairly fast RPM which would mean that 
the torque for a given amount of Horsepower would be smaller than say the 
same HP motor turning slowly.  Until you experience two of the magnets in 
proximity it is difficult to understand the attraction.  I have taken small 
ones around .3 or .4 inches in diameter and placed them on either side of 
my hand and they are hold there and for me that's about an inch and a half 
apart.  Magnets like this but larger are a real hazard to handle because 
they can brake fingers when they come together unexpectedly.
     I'm not saying that this is the method (magnetic coupling) that I 
endorse, but I think it has merit.

GB

At 07:55 AM 8/16/00 , you wrote:
>Gary,
>Would the magnets be effective enough in shear to maintain a useful
>coupling?  I have no knowledge or experience in this area, but I do know the
>easiest way to get two magnets apart is to slide them sideways.
>
>Wade