[Rhodes22-list] is there a metallurgist in the house?

Jb j.bulfer at jbtek.com
Sat Jan 3 12:24:23 EST 2009


try beezwax
Jb
----- Original Message ----- 
From: "Joe Babb" <joe.babb at comcast.net>
To: <rhodes22-list at rhodes22.org>
Sent: Saturday, January 03, 2009 7:21 AM
Subject: [Rhodes22-list] is there a metallurgist in the house?


> Ok, this is not about sailing, but I'm hoping there is someone on the
> list that can help me out with a metal lubrication problem.
>
> I work on steel guitars and most all of them have what is called a
> changer where aluminum parts ride on a steel shaft.  The range of motion
> is very small, but there is lots of pressure as the strings are curved
> around the aluminum.  There is usually lubrication between the steel and
> aluminum.  I've seen some sort of grease used and most folks recommend
> sewing machine oil or gun oil.  But over time the lubrication gets
> gummed up and/or the aluminum "appears" to gall (like when you file
> aluminum it loads up the file) and scores the steel shaft.  This results
> in a sticky action.
>
> What is a good lubricant to use between steel and aluminum?   Does
> sewing machine oil mix with grease?  For instance, if grease is used
> originally and someone uses oil later will it still be good lubrication
> or will it gum up?
> Joe
>
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