FLANGE DEVICE WITH FINISHED SURFACE

摘要

An end flange device is capable of translating an externally-supplied rotational or torque drive force to a hollow cylindrical electrophotographic imaging member in a copying or printing machine. The flange device includes a flange support member and flange made from a conductive plastic and preferably from a composition including polycarbonate and carbon fiber. The flange has a specified outer surface finish that insur es an optimum frictional relationship between the flange outer diameter and the imaging member inner surface. Mounting the flange device to the imaging member does not require an adhesive material due to an interference fit, nor the use of a separate ground member, since the flange device is conductive. Matching the coefficients of thermal expansion of the flange and imagin g member results in maintaining the interference fit during the machine operation.