US Patent:
20110005876, Jan 13, 2011
Inventors:
Scott Jenkinson - Davisburg MI, US
Dana Poquadeck - White Lake MI, US
International Classification:
F16D 65/10
B23P 13/00
Abstract:
A brake drum includes at least one groove formed within an inner braking surface. The groove defines a maximum uniform depth that is set at a drum discard diameter. If the groove is visible during inspection it is an indication that the brake drum is still useable. When the groove is no longer visible, the brake drum should be discarded.