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[Doc]

I've been following a thread about magnetic driveshaft couplers on another forum.  Do any of you use them?  I'd think that no holes in a WTC would be a nice thing, no wet motors either.  But, no idea as to how efficient these things are, slipping etc.
 - 'Doc

[petesubman]

Sounds interesting Doc ,any further info? or pics , Pete

[Doc]

Pete,
I'd much rather give the forum's address (you would too after trying to understand my trying to explain any of this stuff :)). So, here it is...

http://www.rcgroups.com/forums/forumdisplay.php?f=60

I hope it works...
 - 'Doc

[Shipmate60]

These do sound very interesting, just wonder what torque they will transmit.

Bob

[Doc]

Bob,
I'm sure it has to do with the size/number/type of magnet used.  Other than that, your guess is better than mine!
 - 'Doc

[Shipmate60]

And keeps shock loading off the motor so should help to "soften" the current peaks too.

Bob

[flag-d]

Magnetic coupling is often used on smaller water pumps.  I've recently bought one at work to boost water pressure from 2bar to 12bar, so I guess they can take some 'work'.  Might be real handy to prevent motor/battery over-load if the props foul in weed etc.

Mike

[Doc]

...And after thinking about it a bit, it really shouldn't make much difference in the two magnet 'plates' were not exactly 'square', sort of tilted a bit.  Think I just did away with those @#$ 'U'-joints!
 - 'Doc