All the models needs a bearing to work, they uses 608ZZ bearings, but there are also a printable bearing at https://makerworld.com/en/models/95530#profileId-101882.

I have made 4 versions of the fidget spinner.

Version 1:

Diameter 9 cm

Made so it can fit 5 608ZZ Bearings, 1 to spin and 4 for weight, so it spins longer.

Version 2:

Diameter 9 cm

Uses 1 608ZZ Bearing

Version 3:

Diameter 6 cm

Uses 1 608ZZ Bearing

Version 4:

Diameter 7 cm

Uses 1 608ZZ Bearing

Please feel free to comment if, there should be any problems, or suggestions for improvement.