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Brakes are one of the most critical safety features on any automobile, ensuring the driver can bring the vehicle to a prompt and reliable stop on demand. They come in two different varieties: disc and drum. Here’s more about how each kind works and the differences between them.

How They Work

With disc brakes, a metal rotor called a disc spins in the wheel of the vehicle. Applying the pedal triggers a caliper that compresses brake pads against the disc. Friction between the pads and disc slows the spinning of the disc and the movement of the wheel. The more firmly the pedal is depressed, the faster the car will stop moving.

A drum brake consists of a small drum with a set of attached shoes located alongside the wheel. When the pedal is applied, the shoes press against the inside of the drum, causing friction that brings the wheel to a stop.

Differences Between the Two

brakesBoth drum and disc brakes work on the same basic principle that the application of friction stops the wheel from moving. The biggest differences between the two have to do with quality and dependability.

For instance, brake fade is a gradual reduction in stopping power due to frequent or prolonged use. Since disc brakes are more efficient at dissipating the heat generated from the friction, they withstand the fade better. Their performance in wet conditions is also superior, as drum brakes tend to collect water inside the drum. Disc brakes allow for easier inspection because they don't require removal of the wheel.

 

If you're encountering issues with your brakes, have them repaired or replaced as soon as possible. F.A.T.S. Parts in Anchorage, AK, has been providing a wide selection of auto parts and supplies to the area since 1984. From tires and brakes to oil and batteries, they are a one-stop-shop for all your car care needs. They also offer comprehensive brake repair services, including inspections, maintenance, and replacements. Call (907) 561-4721 for more information or visit their website for their full list of automotive services.

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