[GreenKeys] [External] Re: WD-40

[Richard Knoppow]

    Some time ago I researched the grease Collins Radio specified 
for lubricating the gears and cams in the R-388. What I came up 
with was one version of Aeroshell grease, a synthetic grease. 
That led me to some FAA accident reports where the mixture of 
this synthetic grease and the previously used petroleum grease in 
aircraft gear boxes had caused crashes. I have a tube of it (will 
never use it all) looks like butterscotch frosting.
    The more I try to learn about lubricants the more confused I 
get. There is stuff called turbine oil which is supposed to be 
for fine high speed machinery. I got a sample of turbine oil 
years ago from one of the large oil companies for use in 
relubricating the oilite bearings in tape recorders. Might be 
suitable for TT machines.
    BTW, my understanding via a former Bell Labs person is that 
KS means Kearny Specification and was applied to items not made 
by Western Electric but bought by them for the Bell System. Also 
D-spec items mean developmental and were made either by Bell Labs 
or under their direct supervision. Lots of WE motion picture 
sound gear is D-spec.

On 9/6/2020 12:59 PM, Jones, Douglas W wrote:
> From: Jeffrey Angus [jdangus at att.net] -- Sunday, September 6, 2020 2:12 PM
>
>> A specific oil?
> When Teletype Corporation was a branch of the Bell System, they recommended KS7470 oil.  That is no-longer available, but I did some research.  See:
> -- https://www.cs.uiowa.edu/~jones/pdp8/UI-8/ks7470oil.shtml
>
> I've been using Starrett 1620 Tool and Instrument Oil, because it comes in convenient sized small bottles.
>
> One datasheet I found said this is really Nye Delicate Machinery Oil 113, which you can easily buy by the gallon or drum.
>
> But, on my small instrument-makers lathe, I use sewing machine oil.  It's clear instead of yellowish, but seems very similar in general characteristics.  You can get it at just about any fabric store.  I learned about this when I encountered a secretary at work deep in discussion with a coworker who restores full-sized steam locomotives for a hobby.  Her hobby was restoring sewing machines, and they were deep in a discussion of freeing old rusted mechanisms, cleaning bearings, degunking and lubrication.  It turns out that an old sewing machine that's been rusting in a barn for 50 years is no more or less a problem than an old locomotive that's been rusting in a city park for 50 years.  Aside, that is, from the matter of size.
>
>              Doug Jones
>              jones at cs.uiowa.edu
>
>
>
> --
> "I am a river to my people."
> Jeff-1.0
> WA6FWI
> www.foxsmercantile.com
>
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to douglas-w-jones at uiowa.edu
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to 1oldlens1 at ix.netcom.com

-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL