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Cliff, contrary to what Randy has said and each to their own, I have used 3mm Teflon for the last 4 years successfully, with no distortion. Teflon is used a fair bit in the pharmaceutical industry and its properties only seem to change somewhat under extreme temperatures when autoclaved and it works fine for this application. I have no wish to start another free for all on this but I am sure there are other produts that are suitable, with Teflon there is no need to use grease either.

Best Regards,

Andy 51.19N

Nil Satis Nisi Optimum

(Nothing's Satisfactory Unless It's The Best)


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Subject: [M]: Re: Re: Superwedge - HDPE vs Teflon for bearing
Date: Sat, 15 Nov 2003 22:01:13 -0800
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Cliff,

I first tried the HDPE bucket bottom but the HDPE is not very slippery.
A thin coating of grease makes HDPE work better. Sheet teflon is too
soft. I have been using UHMW polyethylene for a couple of years and
also made and sold some bearings to other wedge users; they have liked
the UHMW bearings.

Randy Marsden



----- Original Message -----
Sent: Friday, November 14, 2003 2:40 PM
Subject: [M]: Re: Superwedge - HDPE vs Teflon for bearing


> A few weeks ago there was a discussion about using HDPE, UHMW and
> Teflon for bearing surfaces on the Equatorial Wedges. I got the
> impression that some bucket bottoms were a material that could be used
> for this bearing surface. I looked at some of our buckets and they are
> stamped HDPE. Is this suitable or do I need to order some UHMW? Can I
> use some of this material for other bearing surfaces on the Meade
Super
> Wedge.
>
> This has probably already been beat to death but I missed some of the
> posts. I didn't have a need then - Now I do.
>
> Thanks in advance
>
> Cliff
>
>


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