I understand the bearing design just fine. My main
issue is lack of detailed understanding of the operation of our clutch.
I am assuming that the apply plate is never freewheeling. For vibration and flywheel effects alone, I am assuming there has to be a load on the bearing at all times (just changes from lighter load in clutch release and heavy load in apply, or vice versa if my understanding is wrong.) Like I said, I do not really have good understanding of the mechanics of the design.
Since the Barnett uses the exact same part as Yamaha, I would assume if there was a bearing problem, it would be well published by now (maybe even a recall.) I could easily understand bearing failure if it was not seated correctly (wobble under spin) resulting in the spread of the bearing sleeve.
I'm not trying to say I think you are wrong, just that I feel there is not enough data to make me feel the need to make a change.
I AM wondering if I should just stick to the Barnett stock springs instead of the HD springs (to avoid "too much" lateral load on a stock engine.)