Found that in the process of the development of the castor wheels can only run on a straight line, the change in the direction of when handling heavy objects are difficult, people invented with a steering wheel structure, namely castor or universal wheel, the invention of the castor for handling efficiency is greatly improved, with the development of the industry is becoming more and more widely, become one of the indispensable parts, Casters have also become a special industry.
Casters include movable casters, fixed casters and movable casters with brakes. The movable casters are universal wheels, which can rotate 360°. The fixed casters are also called directional casters, which have no rotation structure and cannot rotate.
The main components of casters are:
Anti-entanglement cover: It is used to prevent objects from entering the gap between the wheel and the bracket, and protect the wheel to rotate freely.
Brake: A brake that locks steering and holds wheels in place.
Support frame: mounted on the conveyance and attached to the wheels.
Wheel: Made of a material, such as rubber or nylon, by which it turns to transport goods.
Bearing: The steel ball in the bearing slides to carry the heavy load and save effort to steer.
Shaft: connects the bearing with the support frame to carry the gravity of the cargo.