Patent Number: 6,206,150

Title: Composite brake drum having a balancing skirt

Abstract: A composite brake drum for a motor vehicle or the like. The brake drum has a drum body that is comprised of a first material, preferably a cast metal, such as gray iron. The drum body has a cylindrical section, a shoulder, a mounting face, and a balancing skirt. The brake drum also includes an annular band formed from a second material, preferably a stamped metal such as steel. The annular band encircles the cylindrical section of the drum body. The balancing skirt extends from the cylindrical section and along a portion of a radially outer surface of the annular band. The steel annular band is positioned in a mold apparatus and molten iron is introduced into a mold cavity defined thereby. The mold and annular band are maintained in a static condition during the casting process. In a second embodiment, the cylindrical section and the skirt may be formed from the first material. The mounting face, the shoulder, and the annular band may be formed from the second material.

Inventors: Hill; Ross S. (Lansing, MI)

Assignee: Hayes Lemmerz International Inc.

International Classification: F16D 65/02 (20060101); F16D 65/10 (20060101); F16D 65/00 (20060101); F16D 065/10 ()

Expiration Date: 03/27/2018