Automobile Drum Brake
The brake shoe carries the brake lining, which is riveted or glued to the shoe. When the brake is applied, the shoe moves and presses the lining against the inside of the drum. The friction between lining and drum provides the braking effort. Energy is dissipated as heat.
Modern cars have disc brakes all round, or discs at the front and drums at the rear. An advantage of discs is that they can dissipate heat more quickly than drums so there is less risk of overheating.
The reason for retaining drums at the rear is that a drum is more effective than a disc as a parking brake.
Read more about this topic: Brake Shoe
Famous quotes containing the words automobile and/or drum:
“I shall not bring an automobile with me. These inventions infest France almost as much as Bloomer cycling costumes, but they make a horrid racket, and are particularly objectionable. So are the Bloomers. Nothing more abominable has ever been invented. Perhaps the automobile tricycles may succeed better, but I abjure all these works of the devil.”
—Henry Brooks Adams (1838–1918)
“Only the drum is confident, it thinks the world has not changed;”
—Robinson Jeffers (1887–1962)