brake drum
machine part
Quick Summary
A brake drum is a revolving cylinder on a vehicle's wheel or a machine's rotating part. It is a component of a drum brake system, where brake shoes press against the inner surface of the drum to slow down or stop motion. This friction generates heat, which is dissipated to prevent brake fade. Originally, drum brakes were mechanically actuated, but hydraulic systems are now preferred for more consistent braking force across all wheels.1234
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