In the conventional caster can caster, the space is formed between the caster cover and the caster, so that the lint, dust, etc. of the fiber yarn generated during weaving are interposed between the spaces, thereby interfering with the rotation of the caster. And there is a problem that does not move freely according to the movement direction, and also penetrates inside the ball bearing is installed there is a problem that completely prevents the rotation of the caster.;The present invention has a structure to cover the end of the caster cover by extending the outer periphery of the caster in order to fundamentally prevent the dust or lint of the fiber between the caster cover and the caster to solve the problems described above. It was possible by doing so.
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