Definition of 'brake drum'

Word Frequency

brake drum in British

noun

the cast-iron drum attached to the hub of a wheel of a motor vehicle fitted with drum brakes

a heavy metal covering fitted over an automotive brake assembly and fastened to the axle: used in a braking system (drum brakes) in which internal brake shoes are pushed outward to contact the spinning drum from the inside

(breɪk drʌm)

Word forms: (regular plural) brake drums

noun

(Automotive engineering: Vehicle components, Brakes, steering, wheels, tires, and suspension)

A brake drum is a closed cylinder attached to a vehicle wheel, against which a brake shoe presses to make the vehicle go slower or stop.

The inside surface of the brake drum must be smooth and uniform so that the brake shoe can be applied against it.

The brake shoes are forced by hydraulic wheel cylinders against the inner surface of the rotating brake drum.

A drum brake system consists of hydraulic wheel cylinders, brake shoes, and a brake drum.

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Rather than a conventional bike chain, the engine drives the rear wheel via a brake drum. Times, Sunday Times (2012)

Used Rarely. brake drum is in the lower 50% of commonly used words in the Collins dictionary

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Definition of brake drum from the Collins English Dictionary

The indefinite article

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