Buckingham wear equation
Buckingham wear equation
(OP)
We are experiencing pinion wear (channeling). I have analyzed the situation using the Buckingham equation for wear of gear teeth and we are nowhere near the conditions where we would experience wear. Does the Buckingham equation have speed limitations? The pinion is at 6200 RPM, hardness of 37Rc, 1.0 in-oz of torque, running against a gear of 58Rc. Could the hardness difference be a factor. Any help would be much appreciated.





RE: Buckingham wear equation
RE: Buckingham wear equation
Small number of teeth, high pressure, and high velocity all contribute to the liklihood of scoring. There is an appendix to AGMA 2001 that does an excellent job covering scoring.
RE: Buckingham wear equation
to replace the pinion rather than having to replace
the gear and make it softer. I would increase
the hardness of the pinion either by carburizing
it or induction harden it to a higher rockwell.
Also curious if the pinion is a long addendum pinion
and have an arc of recess designed in it. I would
think at those high of RPMs that would have been
incorporated into the design.
RE: Buckingham wear equation
I will take a closer look at the pinion tooth profile, in the meantime we will case hardend the pinion closer to the 58Rc gear.
RE: Buckingham wear equation
too much approach action, the hardening issue may
help but just prolong the problem. This is a good
reference. I too am not familiar with the term
channelling. The chapter before the below listed
url should also be interesting to you. I assume
too that you are speaking of external gear and
pinion. If your pinion is not a long addendum
design, you might want to experiment with cutting
one less teeth on the same gear blank and see how
that helps.
h
RE: Buckingham wear equation
RE: Buckingham wear equation
excessive scoring or excessive wear. Now for
the old addage, what kind of lube are you using
on this. This has been a common reply for
wear, ie not enough lubrication.
RE: Buckingham wear equation
RE: Buckingham wear equation
the lube is working well with such a light load
being applied?