Components of the Caster
A caster is a complete wheel and horn assembly which, when attached to a piece of equipment,
allows that item to move.
There are two basic types of casters:
Rigid or Stationary Casters have a rigid horn and wheel assembly which permits only a straight-line movement.
Swivel Casters have a swivel horn and wheel assembly that will allow rotation through 360 degrees,
which permits movement in any direction.
Caster Parts Nomenclature
Here is the assembly breakdown of a swivel caster: