| 摘要 |
A disposable finishing article for mounting on a rotatable threaded spindle which may be used with a power tool. The finishing article contains a retaining nut on one side and a backing flange on the other non-removably secured together on the finishing article without the aid of adhesives in such a manner that the finishing article is placed in compression when it is operably secured upon the spindle of the power tool under operational loads. The nut and flange are secured together by upsetting one end of the nut causing it to protrude outwardly over the outer surface of the flange. A metallic inverted cup shaped member and a molded plastic bearing are secured together to form a composite pressure cap and are maintained in operative relationship upon the outer surface of the backing flange. The cup is relatively rotatable with respect to the bearing to effect easy removal of the finishing article from the power tool. The backing flange includes radially extending fingers which secure the plastic bearing to the backing flange.
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