piclist 2001\08\02\210956a >
Thread: Underwater robots
www.piclist.com/techref/index.htm?key=underwater+robots
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face BY : Mike Kendall email (remove spam text)



I agree, good point.  I was recommending the gelstar dielectric grease to be
in the section with the moving rotor containing the magnets.  The corrosion
would probably then be less of an issue. This set-up would be similiar to
mud motors that I was discussing have a rotating shaft with bushings (two
companies use bearings and one company uses bronze bushings).  The grease in
the mud motor (they use a moly type) is pumped in via zircs as a periodic
routine maintenance.  I don't know if the mud motor bushings are oil lite
(powdered bronze mixed with oil under high pressure that will self
lubricate) or solid bronze.  Delrin would probably be better for the u/w
robot.
Mike
{Original Message removed}
<002a01c11b8f$9a594720$0101a8c0@pavilion> 7bit

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