Dremel multi chuck disassembly

The chuck on my Dermel broke (while I was using it to fix a Linux laptop!!). I was curious to know what went wrong inside so I hackered it open. Picutres here:

dremel multi chuck disassembly

That “round thing” that pushes this grippers somehow got dislodged I guess the grippers were pushed out far enough to allow a gap which it fell out into… isn’t that interesting!!! !