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It's not a usable bearing, I printed it as a demonstration piece just to show people as I mostly print flanges and mounts which people find pretty boring. The "spools" have no retainer which allows the surfaces to touch and since they are spinning counter to each other that's double speed and you get immediate heat build up and distortion. I tried to spin mine on a drill press and keep it cool with some silicone lube but it still sticks and grabs. Sorry.

https://www.thingiverse.com/make:360269 This one is 608 sized and works a lot better

https://www.thingiverse.com/thing:620185 This one works well too but is an odd size.

https://www.thingiverse.com/thing:2375124 This one works the best but is much larger.

All the best to you!

Planetary Herringbone Gears
by moczys
Slew Bearing, parametric Design with Fusion 360
608 gear bearing