Richard A Dvorak

US Patent:

47185295, Jan 12, 1988

Filed:

Jul 31, 1986

Appl. No.:

6/891156

Inventors:

Edward R. Kroeger - Beloit WI
Richard C. Dvorak - Rockton IL

Assignee:

Dana Corporation - Toledo OH

International Classification:

F16D 6900

US Classification:

192107R

Abstract:

The friction face of the rotor of an electromagnetic clutch is formed by a ring of molded friction material and by magnetic insets molded within the friction material and defining the magnetic pole pieces of the rotor. The inserts are formed with multiple shoulders which face in various directions and which interlock intimately with the friction material to prevent the inserts from shifting in any direction relative to the friction material. In addition, the inserts themselves are anchored directly to the rotor by screws in order to prevent the inserts from pulling away from the rotor and to promote uniform wearing of the inserts and the friction material.