jds303,
I've got a new self aligning bearing kicking around, but I never put it in. Yet, anyway.
Mine was fine, but I decided to clean out the little oil hole in the bearing housing without removing the bearing. In a bright spark moment, I got the air gun and forced a whole heap of crud into the bearing proper.
Crunch, crunch, crunch...
Flushed it out with copious amounts of degreaser and more air. Fixed the stuff up and now I'm just oiling it every second use, or so.
It's smooth and the machine is cutting very well. If it ever goes I've got the spare but I'm not in any hurry to pop it on.
Hope that helps.
