Spool Roller Wall Mount

I created this Thing because there wasn't something wich fits my needs ...
So from all the spool holder and wall mounts inspired I made this free hanging, self centering spool holder on ball-bearings.
All you need is a m8 x 100 coach bolt, a nut with nylon inlay and two 608 ball-bearings (and some screws depending on your mount ...).
(Print mounts with support with high infill density)
If your bearings are too good and the retract unreels your spool, add the breakdisk between a bearing and the nut.

Hopefully it will work as good for you as it works for me and if you like it please share a picture of your made :)