A caster is a swiveling assembly that includes a wheel. The wheel is the part that makes contact with the ground and provides support for the load. The caster allows the load to be moved in any direction, making it easy to maneuver.

There are many different types of casters, each designed for a specific purpose. Some of the most common types include light-duty casters, medium-duty casters, heavy-duty casters, and stainless steel casters.

When choosing a caster, it is important to consider the load capacity, the type of floor surface, and the environment in which the caster will be used.

Casters require regular maintenance to ensure that they are operating properly. This includes cleaning the casters, lubricating the bearings, and inspecting the wheels for wear and tear.