Бесплатно 

Just a simple ball bearing I designed for a friend. 12mm balls with a 5mm flat contact area ensure easy printing and smooth operation. Inner diameter is 16mm, outer is 50mm. Spins right off the build plate, and doesn't come apart easily.
A 1 or 2 line brim may help with bed adhesion if you have any problems, and should come off easily


![Ball-Bearing Fidget Spinner [EASY to Print]](https://cache.polyzon.org/api/img?url=https%3A%2F%2Fmedia.printables.com%2Fmedia%2Fprints%2F5863dd87-7446-4f5e-a6d1-5221b3fb63b0%2Fimages%2F11474421_898d74cb-3345-4b06-903e-4a3fcf21da25_793bb39c-cb29-409a-adeb-798468698d02%2Fgemini_generated_image_knlyiknlyiknlyik.png&w=300)








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