Kevin, is there room for a small gear puller? Please, don't use a hammer! Also, if I were you, the first thing I'd do is get on the phone with Ray at Seyco and verify whether the parts on all the Ex's are interchangeable. If so, that will at least ease your mind on what happens if you break a piece. And...on my Dewalt, I was able to pop the tiny retaining ring out of that bearing and "push" some synthetic grease into the bearing using a pipe cleaner. It seemed to work. Even with flat spots on the bearing sleeves, with a good greasing, I'll bet there are still many hours of run time on your saw. That will give you time to decide whether to fix it or sell it or????