It is also very difficult to trace the history of casters. However, after people invented the wheel, it became much easier to carry and move objects. However, the wheel can only run in a straight line, and the change of direction when carrying heavy objects still remains. It was very difficult, and later people invented wheels with a steering structure, which we now call casters or universal wheels. The emergence of casters has brought a breakthrough in the modern era to people's handling, especially moving objects. Not only can they be easily transported, but they can also be moved in any direction, which greatly improves efficiency.
In modern times, with the rise of industry, more and more equipment needs to be moved, and casters have become more and more widely used around the world. Casters are almost indispensable in all walks of life. In modern times, with the continuous development of technology, equipment has become more and more versatile and highly utilized, and casters have become an indispensable component. The development of casters has become more professional and has become a special industry.
Casters are a general term, including movable and fixed casters. Movable casters are what we call universal wheels, and their structure allows 360-degree rotation; fixed casters have no rotating structure and cannot rotate. Usually two kinds of casters are usually used together. For example, the structure of a trolley has two fixed wheels at the front and two movable universal wheels at the back near the push armrest. Casters It is also very difficult to trace the history of casters. However, after people invented the wheel, it became much easier to carry and move objects. However, the wheels can only run in a straight line, which changes the direction when carrying heavy objects. It was still very difficult. Later, people discovered the caster as a transportation tool, which can reduce the transportation pressure and move forward quickly.