Oct 16 , 2019

What Are Disc Brakes?


The two-sided, open design of disc braking systems creates several advantages over drum systems: Better cooling action, better wet performance, less prone to locking—and, for the DIYer, easier to service.

What to Do if Your Car Shakes When Braking

Need to fix it fast? Have these 5 things in your garage.

Parts of a Disc Brake System: Brake Rotors

Disc-shaped rotors spin with the wheel and provide the braking surface. Usually made from cast iron (or a few other high-performance materials), they absorb and dissipate the heat generated from the friction used to slow the vehicle. Vented rotors cycle air through the rotor to speed the release of heat and keep the brake pads cooler. Optional cross-drilling accentuates the cooling action, while slotting vents gas and debris away from the rotor surface, where they can hinder friction between the brake pad surface and the rotor.

Here’s how to replace your brake rotors.

Parts of a Disc Brake System: Brake Pads

As you brake, the pads grip the surface of the rotors, creating friction that converts the vehicle’s kinetic energy to heat and slows the vehicle. Here are some causes and diy fixes for smoking brakes.

This is how to perform an easy garage-door tune-up

Parts of a Disc Brake System: Brake Calipers

Brake calipers straddle the edge of each rotor, holding a pad on either side. They are connected to the brake lines, and convert the hydraulic pressure created by the master cylinder to movement, using a piston. The piston squeezes the pads against the rotor, slowing it and generating heat.

Want to paint your brake calipers? Here’s what you need to know.

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