To provide a new caster capable of demonstrating a suspension function by a configuration similar to a widespread caster.

A caster 1A of the present invention includes: a wheel 2A having a shaft hole 21; an elastic axle 3A which is inserted to the shaft hole 21 and is elastically deformable; a bearing part 4A which is formed or disposed inside the shaft hole 21, and whose center part 41 is projected to the side of the elastic axle 3A more than both ends 42 thereof; and a shaft support part 5A having two support holes 51 for supporting both end sides of the elastic axle 3A.