A brake drum is a rotating, cylinder-shaped component of a vehicle's drum brake system . When the brake pedal is pressed, hydraulic pressure forces brake shoes to expand outward against the drum’s inner surface, creating friction that slows or stops the wheel. Key Components & Materials
Products and Technologies | Akebono Brake Industry Co., Ltd. brake drum
These pull the shoes back to their original position once the brake pedal is released. Operational Requirements A brake drum is a rotating, cylinder-shaped component
The actuator that converts hydraulic pressure into mechanical force to move the shoes. These pull the shoes back to their original
Arced metal structures with bonded or riveted friction material .
Usually made of Grey Cast Iron for its excellent thermal conductivity and wear resistance. Modern high-performance variants may use Aluminum Alloys or Metal Matrix Composites to reduce weight.
The assembly comprises several critical parts designed to handle high heat and mechanical stress: