Re: [PSUBS-MAILIST] motor seals

["Dale" <heinzind@cadvision.com>]

-----Original Message-----
From: TeslaTony@aol.com <TeslaTony@aol.com>
To: personal_submersibles@psubs.org <personal_submersibles@psubs.org>
Date: Wednesday, August 16, 2000 10:27 PM
Subject: Re: [PSUBS-MAILIST] motor seals


>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
>



What about stainless steel??? it is not magnetic..

dale