Trolley Wheel

A caster (or castor) is an undriven wheel that is designed to be attached to the bottom of a larger object (the "vehicle") to enable that object to be moved.

Trolleys are used in supermarkets, airports and stations to move around goods and baggage. Trolley wheels are among the most important components of a trolley that helps to maneuver these vehicles properly. It can be quite frustrating to move vehicles when these wheels are locked or spoiled.

As the center hub of the wheel revolves around the center of the swivel section it is said to “cast” in that small circle. Thus, caster! This essential swiveling feature of casters makes it so much easier to move heavy loads and turn tight corners in a warehouse.