Watertight Magnetic Coupling

This is a proof of concept of the watertight magnetic coupling for two separate axis. It is done by using 12 Neodymium magnets, 6 on each side, arranged in alternating magnetic orientation. I used leftover magnets from some previous projects and they are around 20 mm, 3/4 inch diameter. You also need two standard 608 ball bearings.
There are two types of pins, ones that require hole through the membrane (pins A and B) but are self aligned and the universal pins that you glue to membrane withou