Hi Folks, I've only read the first page of posts on this subject and it appears to be part of what I need to know. I'm a 23+ year retired job shop machinist and disassembling, clean and greasing is no problem.
But before I start, I always like to get as much insight on things as I can. In my case, I'm almost sure that I have a worn ring because the stick just won't stay in center. I'm not expecting "perfect center" but it's getting worse in both, X & Y axis's.
I need to study these pics a little closer but upon first look, I don't see any "thin, .090 ring" that I've read back when warthogworld.com was still an active site. I've already noted the grease and will order it, (though your eBay link goes to a "DOW MOLYKOTE 44 Silicone High Temp Bearing Grease Lube", and that's different than the "Dow Corning Molykote EM-30L Synthetic Grease Lubricant").
What about this "ring" that I read about last year in the warthogworld.com site? Maybe I'm remembering it wrong. Perhaps they were suggesting adding a PTFE ring? :.090" in thickness and 2.125" ID x 2.520" OD (for those into the metric system: .23cm thick by 54mm ID x 64mm OD).
Anyway, thanks for the info and if anyone knows anything more about this ring, would you throw in a few words to help remind me what it was all about.
Rich