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Posted by Neon John on March 21, 2008, 2:32 pm
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>http://www.jeffersonfreestate.org/hh/
>
>The beast is on its first real long term test. 4 hours running and
>counting.
Forgot to mention in my previous post. I like your shaft support. I was going
to
suggest an aluminum RV jackstand. Great minds think alike and all that.
Anyway, you might want to get a hunk of Lignum Vitae wood to use as your bearing.
http://en.wikipedia.org/wiki/Lignum_vitae
LV is the densest wood known. It's ebony black, hard as many metals and is
worked
with metal working tools. Because it is water-lubricated, it is still used as
both
the thrust and main bearings of large water pumps. The 50,000 HP river water
pumps
at the Sequoyah nuclear plant use LV for both bearings, for example. LV is
sometimes
called "ironwood" but there are other species also called ironwood so don't let
that
confuse you.
This wood is available from any of the specialty wood vendors on the net that
cater
to carvers and furniture makers. It's not terribly expensive, especially in the
small quantity you need.
Simply polish the shaft where it bears against the LV, bore and ream a close
fitting
hold in the LV and mount it suitably. It'll last a lifetime as long as it's kept
wet. Ideally, you'd tee off a little supply of water to supply bearing water
through
a hole drilled in the wood. It should do OK with splash lubrication too.
John
--
John De Armond
See my website for my current email address
http://www.neon-john.com
http://www.johndearmond.com <-- best little blog on the net!
Tellico Plains, Occupied TN
Okay, okay, I'll take it back ... UNfuck you!
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