Re:Lubricants

["Gregory Dito" <g.dito@worldnet.att.net>]

Jim,

I'm no chemist, but as I understand it shear force is the "cutting" or
"crushing" force of meshing gears, bearings etc. that over time begin to cut
the long molecular string that protects the metal surfaces.  It is the
strength of the molecular string to withstand shear force that keeps it
between the metal surfaces.  As the molecular string weakens and begins to
break up you lose the protection that the lubricant (the long string of
molecules) provides.

Greg
Chapel Hill, NC
TR250 CD6250L