Summary

Made a new system of spinner.
see video https://www.youtube.com/watch?v=XfVvqdrHeaE

Needs bearings 696 (6x15x5mm) - 4pcs
M3x14mm bolt - 4 pcs
self-locking nut M3 - 4 pcs
balls 22mm -3pcs
(or you can take 7/8" (22.225mm) balls and print outer ring +08mm)

need to be printed:
frame A, frame B, roller - 3pcs, cap A, cap B, and outer ring.

I printed outer ring +06mm - with tolerance 0.6mm,
maybe you will need +0.4mm or +0.8mm - dont know...
with balls 7/8" print +0.8mm.
AND NEED A LOT OF GOOD SANDING for outer ring,
so that the inner surface is perfectly smooth.

In openscad you can try use other models of bearings and balls, but with 608 nothing will work out - too big. Openscad file supports animation.
So that the bearings 696 are correctly drawn, you need to replace the standard file from the library MCAD with the bearing.scad

Аналог для подшипников 696 - это 1000096.
Если с ошкуриванием перестараетесь, то можно вместо шаров 22мм поставить 22,225мм.