In the picture I have attached I am trying to make an animation that will have two balls orbiting the center sphere. These balls will be centered on the rings and run on them like a track sort of.

If I play with the pivot points of the balls AND zero out the rings so that they are flat on each plane, I can get the ball to follow the shape of the ring by using roll or yaw or whatever depending on the plane I am in.

The problem is that once the rings are not on a flat plane and are setup at an angle like shown, the balls will no longer follow the ring.

I have even tried grouping them and then just rotating the ring, but the rings won't rotate around the sphere properly at that angle either.

Any ideas what I can do?