Metal spool holder

I copied it from a similar type spool holder that uses rolling bar. A machine shop manufactured the metal parts.

It's small, spool replacement is on the fly.

All moving parts are made out of metal.
Four round clips are aluminium.
Two rolling bars are stainless steel.

M5x10 bolt x4
M5 lock washer x4
M4 set screw x4
F688AZ bearing x4
Flange diameter: 18.00 mm
Flange height: 1.0 mm
Flange width: 1.0 mm
Outer diameter: 16.00 mm
Hole diameter: 8.00 mm
Width: 5.00 mm