Actually this finger gripper has 8 poles (fingers).
You can see M4 set-screw abowe lower bearing (total three(3)). Seems these are thread locked but so hardly I can not open. I have ruined or cracked seven hex keys tried to open this spindle. Yes - I want to look inside - but main problem is it is the only way to change bottom bearing. I never use common ball bearings like threre are, I have adequate super precision bearings for and I WILL DO IT even what ever will be needed for
Any idea about remove these screws without significant damages
Heat - I do not!
Perhaps some kind of chemistry?
Or just drilling:idea:
cheers,
herbert