To better understand why I ask this, the backstory is I’m getting more and more annoyed by rolling office chairs rotating, hitting my ankles, hard to switch directions when wheels having ~90 degrees differences.
Imagine a ball, and put a bowl on it (upside down). The ball is metal, and the bowl is a magnet that pushes the ball, so it doesn’t touch it (because of the shape), and pulls it at the same time, so if you lift the bowl up the ball goes with it. This used as wheelchair castors could prevent my, and possibly others’ ankles to be hit.
Is it possible to create this environment that the magnets are in perfect balance in every direction, both pushing and pulling?