Download 3d Printable Files Here:

https://cults3d.com/en/3d-model/tool/planetary-fractal-gear-and-bearing

https://cults3d.com/en/3d-model/tool/fractal-wheel-bearing


The fractal gear principle in a linear movement, here.... 

https://www.youtube.com/watch?v=e6epepGdnmg