Rolling flex hinge

Based on a rolling flexural bearing, this design is printed as a single part. The two sides of the hinge are connected by printed filaments which flex to allow for hinging. However, the amount of flexing (and consequently fatique) is much less than a traditional living hinge because the connecting filaments roll across the rounded face. Because the two sides are rolling across each other, rather than pivoting around a fixed axis, this hinge is capable of full 360 degree travel. I didn't include any mounting holes because it's intended to be incorporated directly into a 3d-printed part - not assembled with screws.