What is the McNamun Wheel? How does it work?

McNamun Wheel is a patent of Swedish McNamun Company. This is an omni-directional wheel. Ordinary tires are bidirectional, either forward or backward, and steering is realized by changing the direction of the tires. McNamham wheel is arranged around the main axle at a certain angle, and the rotating force of the main wheel is converted to other directions through different driving combinations, so as to realize omni-directional movement. McNamun wheel can move forward, backward, horizontally, tilt and turn in situ. It is more flexible than ordinary steering system, but because of its complex structure, it can't bear too much load, and it will wear more easily than ordinary tires in use.