Re: [PSUBS-MAILIST] motor seals

[TeslaTony@aol.com]

In a message dated 8/15/00 8:03:46 PM Pacific Daylight Time, 
protek@shreve.net writes:

>      The magnets will not be "slowed" by rotation unless there is some 
>  conductor in the proximity to allow the fields to generate current.  The 
>  motor will not have to "work harder" to do anything.  The only headache is 
>  trying to create the drive shaft going to the propeller.  If done properly 
>  there will be very little energy loss with the majority of that loss going 
>  into the bearings and any portion of the coupling that has to rotate in or 
>  through the water itself.
>  
>  GB
>  
If you are using ceramics, plastics, aphrodesiacs or anything else that isn't 
conductive, then there are no problems with magnetic fields. Unfortunatly 
Steel, Aluminum and Titanium are the best for handling maximum pressure with 
minimum thickness, all of which will conduct (maybe not the Titanium, but I 
bet that it would).

If you can get something to handle the pressure, not react to the magnets, be 
strong enough that it can be thin enough to allow proper power transmission 
and not drain your bank account, all the more power to ya!

Anthony