Shaft Ring for Bearing 608 Z

I made my own Hanging Hook Spool Holder and think I need
a shaft with ball-bearing.

I made many Design and check the printing time.
Full Roll is faster then the other ones

The PVC-Tube is for Electric Installation Metric M50
The Smaller Rolls a inserted to the Ball-Baering and other ones
for Distance and covering the threaded rod.

Einstichrollen is for Mounting the complete Assembly in the Hook
and smaller than the Hook Hole