My Dremel (model 398) has a jammed front bearing probably due to too much dry wall cutting and not enough cleaning. I was shocked happy when I found several of those bearings (used) in my toolbox. I'm wondering how to remove the front shaft (red arrow) and bearing (green arrow). It looks like the bearing is glued to the main shaft of the motor and the front shaft is glued to the main shaft. The red arrow points to a hole in the front shaft. There is no set screw in there, just a hole. The front shaft is where the collet goes with the tools that one might want to use. Any ideas how to remove both the front shaft and bearing? Is brute force the only way to go? Thanks
UPDATE: Added another picture to show the part that holds the bearing removed from the rest of the tool.