Subject: Teflon
From: Rotary Engine
Date: 2/24/2010, 10:35 AM
To: AAA Put this in the To box


Paul,
Thanks for the info for ordering the Versa Mounts.  While I'm
placing  an
order with McMaster-Carr, I thought I would also buy the teflon for
the slide
  throttle.  There is a lot to choose from and its pretty
confusing.  Do
you have a part number for the stuff you recommend ??

Don

There are two ways of doing it. Make the slide out of solid
Teflon 3/8th of an inch thick which is the old expensive way.
3/8th comes in cheaper low tolerance material or more
expensive close tolerance material... probably milled.

The cheaper way is to make the slide out of 1/4 inch thick
aluminum and use a layer of 1/32" Teflon on either side.

Here is the procedure for doing that thanks
to Craig Smith. It is also the way our kits for the
two rotor are done.

This is the stuff I recommend.
http://www.mcmaster.com/#plastics/=5yakjv

Paul Lamar




Thanks Paul,
That link takes me to the main index area that I was finding before.
These are the materials that come up when I search for Teflon :

Don

This is the stuff you want.

Virgin Electrical Grade TeflonĀ® PTFE

<http://www.mcmaster.com/param/asp/psearch.asp?FAM=plastics&FT_138=117610&FT_130=641&FT_101=50336&FT_1215=48565&FT_1199=87677&session=plastics;1215=48565;101=50336;138=117610;130=641;1199=87677
:
Made with virgin TeflonĀ® polytetrafluoroethylene (PTFE) resins, this
material surpasses most plastics when it comes to electrical
insulation
properties, low friction chemical resistance, and performance in
extreme
temperatures.

The glass filled stuff is a no no and that may have happened
with Mark Steitle and why he noticed higher throttle cable forces.
We actually tried that and I was rather disappointed in the
friction performance.

Paul Lamar


OK , great information.  You should add that to the website under the
slide throttle kit like you did for the rubber mounts.

Don Mitchell

I'll get right on it Don :)

Paul Lamar
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