Serrated tuned brake drum

摘要

A brake drum has an axially extending cylindrical flange formed with a radially outer surface and a radially inner braking surface. To reduce, if not entirely eliminate brake drum howling and squealing when the brakes are applied, a plurality of stabilizing sections are cast on the radially outer surface of the flange. The stabilizing sections are arranged in equally circumferentially spaced apart relation. Each stabilizing section is slotted or notched to form a plurality of circumferentially spaced serrations to increase flexibility.