Quote:
Originally Posted by Jeremy5848
Humorous remarks aside, there are probably significant advantages to using an appropriate plastic for the cage of a tapered roller bearing, including weight, cost, and manufacturing tolerances.
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I agree...
I did rotor replacement job a few days ago and re-packed my bearings. I found 3 of the bearings were Japanese and one was a German FAG brand.
NO rude comments please...
Anyway, after I cleaned the bearings and was re-packing them... Wow! The Jap. bearings cages were actually cutting into the palm of my hand! Every piece of that POS Jap. bearing was sharp and actually hurt my hand. The FAG German bearings cage was very smooth and easy to pack by comparison.
It seems to me that a sharp cage + improper torque or installation would cause premature wear or failure. Or at least fill the grease full of metallic crud that should not be there. A finely machined metal cage OR a plastic cage would have less chance of introducing crud into the grease and/or cause a premature failure (maybe, I am not an engineer).
This probably does not mean anything. But, just something I noticed the other day. I have worked as an aircraft mechanic for over 15 years as a mechanic and as a QA inspector. So, I always have a watchful eye out for things like this.