Flap for a flap-type finishing wheel

摘要

There is disclosed a finishing wheel formed of an annulus of abrasive flaps. The flaps are of small width, typically about one-fourth to three-fourths inch. This width is not adequate to accommodate the flanges of the flanged end plates or flange discs to which the drive shaft for the wheels are secured if the end plates are mounted in the same way as they are for conventional wide wheels. The length of each flange is greater than one-half the width of the wheel. In the wheel disclosed the slots in the opposite surfaces of the core are displaced radially with respect to each other so that each need be only of sufficient depth to accommodate one flange without penetrating the annulus. This wheel is formed of an annulus of flaps having grooves or notches extending into opposite edges. The grooves in each are displaced so that no groove extending into one edge is coextensive with a groove extending into the opposite edge.