A brake drum is one of the most important safety elements in your car

What Is a Brake Drum? A brake drum is one of the most important safety elements in your car. It is an enclosed, iron or cast iron component that presses your brake shoes against the inside of the drum. In this way, friction slows your vehicle, stopping it. Drum brakes are used in cars and some medium duty trucks. They are relatively complex, so it is important to understand them. Brake drums are typically made of iron, but they can also be made of aluminum. An anti-corrosion coating helps protect the surface from premature rusting. The brake drum can be a single cylinder or a double cylinder. Often, the drum is attached to the wheel by lug nuts. When the pedal is pressed, the master cylinder forces pneumatic brake fluid through the brake lines and into the calipers.
Each piston pushes the shoes against the drum, causing friction. Drum brakes are a relatively complex system that is more susceptible to heat generation. Heat from braking can cause the drum to expand, resulting in fade. You should have the drum checked regularly to avoid deterioration. Drum brakes require less input force than disc brakes, and they have better corrosion resistance. However, they can become unreliable and unresponsive if worn out. To maintain the best performance of your brakes, replace your brake pads and fluid every 30,000 miles. As the brakes wear, the calipers and seals can become distorted, leading to drag and reduced fuel mileage. If you notice a squeak, you may have a faulty caliper. Your brakes should be serviced by a reputable mechanic.
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