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| Hey Guys, just killing a little time here.
It always amazes me how minor decisions made in the now, carry a high influence on future mechanical fortunes/misfortunes. I see this play out all the time with the many YouTube farmers. I just saw one the other day where it left me thinking; he just made his bed with his bad mechanical work, he will be paying for it shortly. I am also blown away at how often people overlook the simple indicators that provide the reason behind the failure. Or I see them just blatantly ignore the cause and put everything back in place only to experience it all over again.
But instead of pointing my finger at someone else, I would like to offer my own perspective from a recent personal experience.
Here is a wheel bearing, that would have very likely failed this year. It came out of a wing hub on a 12820 Bush Hog flex-wing rotary mower. And for anyone who wishes to weigh in on the matter, I pose these challenge questions.
- What type of failure are we looking at here?
- What caused it?
- What it the best course of action to remedy it?
I am fairly confident that I have the answer to all three questions, but I would like to share the experience here. Maybe these findings will help people to avoid having a future bad day.
Notes on the photo:
- The race was on the inside of the hub
- The "markings" have a definite groove to them.
- The outside bearing was completely fine.
- The hub had probably 0.005" of endplay.
Mav
Edited by Mav 5/14/2025 12:23
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 20250513_142809 (full).jpg (47KB - 2 downloads)
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General Machinery PSA with Challenge Questions
