Word forms: (regular plural) drum brakes
(Automotive engineering: Vehicle components, Brakes, steering, wheels, tires, and suspension) A drum brake is a brake in which a brake shoe presses against a drum or a closed cylinder attached to a vehicle wheel. ▶ brake1, brake2
⇒ A drum brake is a brake in which the friction is caused by a set of shoes that press against a
rotating drum-shaped surface. ⇒ The wheel components in a drum brake system are the wheel cylinder, drum, shoes, adjuster, and mounting hardware. ⇒ The friction between the lining and drum, and the effect of this friction on the application
of the shoes, govern the maximum braking torque that a drum brake can produce.
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