Caster knowledge

April 4, 2024
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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.