[R-390] Gear lube suggestions

[rbethman]

I believe Mobil One is the preferred lube by many.

Anhydrous Graphite works very well, as it is simply graphite with a 
water carrier.  The water carrier evaporates and leaves behind a film of 
graphite on the gears.

It is indeed a lubricant used in firearms.  I have several tubes put out 
by "Gunslick".  I know it works under very harsh conditions in a .45 ACP 
during 100s of rounds launched downrange. It does fine in very cold and 
very hot.  With no petroleum based carrier, it doesn't attract dirt, 
dust, or crud.

Then again I do not have documents to refer to.  So there is that caveat.

Bob - N0DGN


On 7/15/2013 11:20 PM, Charles P. Steinmetz wrote:
> I was curious, so I looked up Royco 363 and found the following:
>
>> Being a highly refined mineral oil based lubricant ROYCO 363 is 
>> formulated with modern additives to provide rust inhibition, 
>> oxidation and corrosion protection, good resistance to evaporation, 
>> and low temperature fluidity.
>> ROYCO 363 has limited use at high temperatures - unless provisions 
>> are made for frequent relubrication.
>
> It is probably a good choice based on its low viscosity and 
> anti-corrosion properties, but perhaps not the best choice for hams 
> and SWLs, who are less likely to do regular cleaning and relubrication 
> of the gear train like the military did because of the need for 
> frequent relubrication when used at elevated temperatures.  This is 
> likely a consequence of being a natural (not synthetic) mineral oil, 
> so its resistance to evaporation and anti-corrosion properties are not 
> as good as an equivalent synthetic oil would be.
>
> Best regards,
>
> Charles