In a message dated 7/12/2010 1:28:32 P.M. Eastern Standard Time,
wrjjrs@aol.com writes:
John,
Thanks for that. I might mention that I have heard of seals coming loose
on several reduction drives. It might be considered a "best practices" to use
a physical locking device on input/output seals that are light press
fit.
Bill Jepson
Aluminum expands dramatically with heat. Seals and even press fit bearings
can come adrift. Positive retention is required. Bushings with oiling holes must
be mechanically indexed lest they turn and shut off lubrication.
Seals may be pressed in place trapping a thin "O" ring along their OD. A
method of retention as simple as a few screws through the bore to prevent
escape, or more complex systems may be employed.
Aluminum gear boxes must be cooled in some manor or press fits and seals
will be lost.
I have coolers and pumps on my differential and transmission. Seals are
retained by formed rod stock and springs, over "O" rings.
Lynn E. hanover