What is a rotor backing plate?

What is a rotor backing plate?

They are pressed plates of steel that provide a support for the brake shoes and wheel cylinder. Those components then combine to provide an outward pressure and braking force on the rotating brake drum, slowing the car down.

What is the purpose of backing plate on disc brakes?

Backing plates are metal plates that function as the solid foundation for drum brake. Made of steel, these plates have the wheel cylinder mounted on them to which the brake shoes are then attached.

How to replace rear brake pads and rotors?

Step 5 – Using a pair of dikes remove the rotor retainer clip which is used in initial assembly and will not be reinstalled. Step 6 – Next, use a socket to remove both upper and lower caliper mounting bolts. Use a wrench if necessary to secure the slide.

How are the brake pads attached to the wheel?

The rotor is made of cast iron or a steel/cast iron composite. It’s attached to the wheel hub and turns with the wheel. It’s the surface the brake pads contact. When you step on the brakes, pressurized brake fluid pushes against the pistons inside the caliper, forcing the brake pads against the rotor.

Why do rear disc brake pads wear down?

Rear disc brake pads offer improved performance and are not affected by moisture like conventional brake shoes. Brake pads wear down making a grinding noise. Caliper slides lock up, not allowing the caliper move causing premature pad wear. Inferior parts squeak, grumble and prematurely wear. Bleed brake system after the job is complete.

What kind of pads do you put on disc brakes?

Fluid in a hydraulic system multiplies the force applied by your foot on the brake pedal to apply the pads and shoes against the rotors and drums. Most vehicles today have four-wheel disc brakes and pads are available in Non-Asbestos Organic (NAO), semi-metallic and ceramic formulations.