Grinding method for metal ring by applying brush grinding device, involves grinding side wall of metal rings if polishing brush is limited by limiting unit at predetermined position in extending direction of brush threads

摘要

The grinding method involves grinding a side wall of metal rings if a polishing brush (2) is limited by limiting unit at a predetermined position in an extending direction of the brush threads. A limiting position of the polishing brush is changed by the limiting unit in another predetermined position that is different from the former predetermined position. A side edge of the metal ring is ground if the polishing brush is limited by the limiting unit at the latter predetermined position.