[R-390] Gear lube suggestions
Duffy Floyd
duffyf56 at verizon.net
Wed Jul 17 17:32:49 EDT 2013
I'll through this out for consideration. In a prior life I worked for a
Circuit Breaker manufacturer. In multiple applications on the breakers which
were close tolerance parts where we did NOT want lubrication hardening
issues we employed a dry film lubricant called Poxylube 420 made by
Sandstrom Products. It was a molydeum disulphide based lubricant in an
alcohol base. Parts were dipped and either air dried or force hot air dried.
Looking at Sandstrom's current product offerings they no longer offer that
particular product but have alternates using PTFE
(Polytetrafluoroethylene)that can be air dried or hot air dried depending on
which product is selected. Here is what they claim for their air dried
product.
RECOMMENDED USAGE
Sandstrom POXYLUBER #820 is an excellent in-plant or field solution to the
problem of lubricating parts:
. Where application of a baked-on lubricant is not possible
. Which may be operated in corrosive atmospheres
. That may be stored for long periods
. Which are seldom lubricated once they leave the factory and
where permanent lubrication is desired
. Where easy release is desired (such as threads of all kinds)
. Where "clean operation" is desired (POXYLUBER #820 will
not collect dirt and debris as do grease and oils)
. Where parts may be subjected to frequent disassembly
. Where a protective coating and sacrificial break-in lubricant
is needed
. Where fretting and galling is a problem (such as splines,
universal joints and keyed bearings)
It is available in clear and black and obviously would be applicable when
doing a rebuild where disassembly of the geartrain is being performed.
More information about the R-390
mailing list