To trace the history of the castor is also a very difficult thing, but after people invented the wheel, moving and moving object is a lot easier, but can only be run on a straight line, wheel for moving heavy objects to the direction of the change is still very difficult, then people invented with a steering wheel structure, that is what we now call the castor or universal wheel. Casters appear to people handling especially moving objects brought the revolution of The Times, not only can be easily handled, but also can move with any direction, greatly improving the efficiency.
In modern times, with the development of industry, more and more equipment need to move, castor is more and more widely used in the world, all walks of life almost inseparable from castor. In modern times, with the continuous development of science and technology, the equipment is more and more versatile and high utilization rate, castor has become an indispensable part. The development of casters is more specialized and has become a special industry.