This is a spool holder that spins very smoothly.

Creality

Ender 3

No

No

Tube: 100%; Other parts: 20%

For the tube, it can be printed horizontally with supports.
The spining part and the knob can be printed vertically, with no supports.

Bearings used:

• diameter: 24mm, width: 8mm, Middle hole: 8mm

To buy the bearings:

• from banggood: https://www.banggood.com/search/bearing.html?ab_version=1
• from AliExpress: https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20220718170254&SearchText=bearing&spm=a2g0o.home.1000002.0