Patent ID: 6749496
Filing Date: 2004-06-15
Classification: B24D

Abstract:
A depressed center abrasive wheel assembly, comprising:(a) a wheel having a rear face, a front face and an outer wheel diameter, said rear face including a raised hub and a flat rear wheel region, said front face including a depressed center and a flat front wheel region; (b) a front flange at said depressed center; (c) a rear flange at the rear face of the wheel, said rear flange including a recessed region at the raised hub; and (d) a reinforcement layer, applied to the front face of the wheel, concentric with the wheel and covering the depressed center of the wheel, wherein said reinforcement layer is a pad, a mat or a cloth that has a polygonal shape selected from the group consisting of triangle, pentagon, hexagon and octagon, and a polygon largest diameter that is no greater than about 75% of said outer wheel diameter.