From: "Brian Cox" <ojaibees@ojai.net>
Reply-To: personal_submersibles@psubs.org
To: <personal_submersibles@psubs.org>
Subject: Re: [PSUBS-MAILIST] Stainless & O rings
Date: Tue, 6 Apr 2004 11:30:05 -0700
Pierre, This seems like one of those telephone games where someone tells
the first person the origional message and then by the time it gets around
the room it's a completely different message. Think of the stainless steel
prop shaft as simply bar stock that you would buy from the steel supply
company. And then you can machine it into anything you like.
Read the LA times article in the paper, BTW, and it was very good.
Brian ( and yes I am a brain )
----- Original Message -----
From: "Pierre Poulin" <pipo305@hotmail.com>
To: <personal_submersibles@psubs.org>
Sent: Tuesday, April 06, 2004 10:11 AM
Subject: RE: [PSUBS-MAILIST] Stainless & O rings
> Hi Brain,
>
> Was your suggestion to only use the stainless steel shaft or use both
the
> shaft and the seal as a thruth-hole?
>
> Pierre
>
>
>
> >From: "Brian Cox" <ojaibees@ojai.net>
> >Reply-To: personal_submersibles@psubs.org
> >To: <Personal_Submersibles@psubs.org>
> >Subject: [PSUBS-MAILIST] Stainless & O rings
> >Date: Thu, 25 Mar 2004 12:48:44 -0800
> >
> >Hi All, Found a great source of stainless steel for thru hull
> >fittings; stainless steel prop shafts, they can many times be found
at
> >boat yards and are sometimes in a junk pile because they've been bent
or
> >damaged. I've just got done cutting one up into little pieces. I also
> >recieved my Parker "O" ring cataloge and it is very informitive, they
> >say the best "o" ring material for water is ethylene propylene rubber
> >but the lubrication recommended is silicone oil, glycerin or ethylene
> >glycol since petroleum lubricants will degrade the ethylene propylene.
> >Parker also has a CD that is free that can help you design your "o"
ring
> >application.
> >
> >Note: Parker is the company that supplied the "o" rings for the space
> >suttle that blowed up. But maybe nasa didn't check the specs?
> >
> >Brian
>
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