I've have used brass shim stock. Get a thickness that
you can form around the mast and secure with a couple
of SS hose clamps.
73, Stew K3ND
--- Don Havlicek <n8de@thepoint.net> wrote:
> Jim,
> He wants something to fit INSIDE that collar.
> UHMW sheet isn't flexible enough for that task.
> The Teflon sheet [about 3-4 mil] will be perfect
> for his task, and
> require NO machining.
> Don
> N8DE
>
> Jim Lux wrote:
> > Don't bother with Teflon... use High density
> (UHMW) polyethylene cutting
> > boards... Less than $10 at your local discount
> store.. Very good dielectric
> > properties, easy to cut (make sure that saw is
> SHARP), and almost as low a
> > friction coefficient as PTFE.
> > Unless you were planning to heat your antenna up
> hot enough where the PE
> > starts to flow....?
> >
> > ----- Original Message -----
> > From: "Don Havlicek" <n8de@thepoint.net>
> > To: "Jerry K3BZ" <k3bz@arrl.net>
> > Cc: "(Reflector) TowerTalk"
> <towertalk@contesting.com>
> > Sent: Monday, April 07, 2003 6:17 PM
> > Subject: Re: [TowerTalk] Above the Thrust Bearing
> >
> >
> >
> >>Jerry,
> >>Get some Teflon sheet and cut a piece to fit.
> Should last a lifetime.
> >>Don
> >>N8DE
> >>
> >>Jerry K3BZ wrote:
> >>
> >>>I've received several good comments and ideas,
> thanks. What I'm really
> >>>concerned about is the aluminum mast and the
> aluminum tower sleeve
> >>
> > wearing
> >
> >>>away slowly from metal-to-metal contact. But
> grease isn't the only way
> >>
> > to
> >
> >>>keep them from actually touching. What about
> some sort of "bushing" to
> >>
> > fit
> >
> >>>between the mast and the sleeve?
> >>>
> >>>I was thinking of a section of thin-wall pvc of
> appropriate diameter and
> >>>wall thickness, sliced length-wise and inserted
> betwen the mast and
> >>
> > sleeve
> >
> >>>on opposite sides of the mast, then clamped to
> the mast above and below
> >>
> > the
> >
> >>>sleeve. The idea would be for the pvc to be
> sacrificed and replaced
> >>
> > every
> >
> >>>few years as necessary. I'm no engineer and I
> don't even play one on TV,
> >>
> > so
> >
> >>>any comments from those more talented than I?
> >>>Jerry K3BZ
> >>>
> >>>
> >>>
> >>>_______________________________________________
> >>>
> >>>See: http://www.mscomputer.com for "Self
> Supporting Towers", "Wireless
> >>
> > Weather Stations", and lot's more. Call Toll
> Free, 1-800-333-9041 with any
> > questions and ask for Sherman, W2FLA.
> >
> >>>_______________________________________________
> >>>TowerTalk mailing list
> >>>TowerTalk@contesting.com
>
>>>http://lists.contesting.com/mailman/listinfo/towertalk
> >>>
> >>
> >>
> >>_______________________________________________
> >>
> >>See: http://www.mscomputer.com for "Self
> Supporting Towers", "Wireless
> >
> > Weather Stations", and lot's more. Call Toll
> Free, 1-800-333-9041 with any
> > questions and ask for Sherman, W2FLA.
> >
> >>_______________________________________________
> >>TowerTalk mailing list
> >>TowerTalk@contesting.com
>
>>http://lists.contesting.com/mailman/listinfo/towertalk
> >
> >
> >
>
>
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting
> Towers", "Wireless Weather Stations", and lot's
> more. Call Toll Free, 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
>
http://lists.contesting.com/mailman/listinfo/towertalk
__________________________________________________
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