europa-list
[Top] [All Lists]

Re: Europa-List: roll control tufnol bearings

Subject: Re: Europa-List: roll control tufnol bearings
From: Jeff B <topglock@cox.net>
Date: Mon, 18 Aug 2008 17:49:15

Rowland,

PTFE is teflon.  Quite common in spray form...

Jeff - Baby Blue

Rowland Carson wrote:
> 
> 
>>
>>> Although I have *no* insight at all, I would wonder if the tufnol 
>>> material would absorb oil/grease and swell
> 
> 
>>> If you receive or find the answer of tufnol compatible lubrication, 
>>> I'd be grateful if you could pass the info along
> 
> Pete - the definitive answer from Neville Eyre via Roger is that any 
> sort of grease is probably best kept away from the cut edges of the 
> Tufnol, because it's likely to cause swelling. Apart from directly 
> affecting the integrity of the Tufnol, grease is also likely to act as a 
> magnet for dust etc which would turn it into grinding paste.
> 
> The manual suggests wiping the faces of CS04 with grease before 
> assembling the CS02-CS03-CS04 cluster - but that should only be applied 
> to the glassy as-manufactured surfaces, not the cut edges or bore of the 
> hole. The only lubricant Neville would accept for the bore is PTFE. I 
> have never seen it myself but apparently it can be got as a spray which 
> is solid particles in a rapid-evaporating propellant.
> 
> regards
> 
> Rowland



<Prev in Thread] Current Thread [Next in Thread>