Brakes – Elements – Brake wheels
Patent
1992-02-12
1993-11-09
Oberleitner, Robert J.
Brakes
Elements
Brake wheels
188218R, F16D 6510
Patent
active
052594866
ABSTRACT:
A composite brake drum for motor vehicle applications incorporating an embedded annular ring insert. The annular ring is positioned within a casting cavity to define the surfaces of a labrynth groove at the open rim of the brake drum. The labrynth groove defines a region for a backing plate flange to define a labrynth seal to prevent entry of debris into the brake drum. By defining the labrynth groove using an annular ring inserted within the mold, the post-casting machining requirements are significantly reduced. Moreover, the presence of a steel ring in the rim of the brake drum provides structural benefits. The annular ring further preferably incorporates locating features to assure accurate positioning within the casting mold cavity.
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Muratori Alfred
Oberleitner Robert J.
The Budd Company
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