The universal wheel is called a caster and is constructed to allow 360 degrees of horizontal rotation.
Casters are a general term, including moving casters and fixed casters.
Fixed caster has no rotating structure and can not rotate horizontally but vertically.
These two kinds of casters are generally used together. For example, the structure of the trolley is two fixed wheels on the front and two movable universal wheels on the back close to the pushing handrail.
Universal wheel refers to the support mounted on casters wheel that can rotate 360 degrees horizontally in dynamic or static load.
There are many kinds of materials for making universal wheel. The most common materials are: nylon, polyurethane, rubber, cast iron and so on.
Widely used in mining, mechanical equipment, electronic equipment, medical equipment, engineering decoration, textile, printing and dyeing, furniture, logistics equipment, storage, revolving car, chassis, cabinet, equipment, mechanical and electrical, dust-free workshop, production line, large supermarkets and other industries and various fields.
According to its different use, the bearing is divided into iron core, aluminum core, plastic core, size 1 inch to 8 inches.
The iron core and aluminum core are generally heavy-duty bearing wheels, often equipped with brake tools.





