GRINDING BODY FOR ON-LINE ROLL GRINDING

摘要

A grinding body for on-line roll grinding, comprising a grindstone mounted in a cup shape on a surface portion, and near a peripheral edge, of a circular support base plate, wherein a peripheral edge portion of the circular support base plate has on a surface side thereof a two-layer structure including a flat ring-shaped portion jutting toward an inner periphery so as to define a groove opening inward; the grindstone is mounted on the flat ring-shaped portion; and a damping material is filled and mounted into the groove. This grinding body can effectively prevent the formation of a spiral mark and a pitching surface mark, improve the grinding power and grinding accuracy, and prolong the life of the grindstone.