What Is Rear Disc Brakes And How Do They Work

Question: What is rear disc brakes and how do they work?

Answer:

The disc brakes on the rear are essentially the same as the disc brakes on the front wheel. Let's see what a disc brake is before explaining why the rear disc brakes differ from the disc brakes in the front. Disc brakes are responsible for stopping the vehicle. They consist of three main parts: brake pads, a caliper and a rotor. The brake pads are located on each side of the rotor and are effectively pressed against the rotor to stop the wheel and stop the vehicle. The blocks create the friction necessary to stop the vehicle. The caliper is a device on the top of the rotor and contains the two brake pads. 

There are two types of parentheses: mobile brackets and fixed brackets. A floating caliper can compress and contain only one piston. When the brakes are applied, the brake fluid pushes the piston toward the pad and applies pressure to the rotor. The other side of the clamp presses the other pad against the rotor to stop the wheel and the vehicle. A fixed clamp does not move; therefore, it contains two pistons on each side of the rotor. When the brakes are pressed, the brake fluid forces the two pistons into each pad that presses on each side of the rotor to stop the wheel and the vehicle. The rotor is an iron disk connected to the tire hub. The rotors work together with the brake pads to stop the vehicle. Again, when the brake pedal is pressed, the pads of the vehicle are pressed against the rotor, causing friction.

This friction can cause the vehicle to stop during a significant release of heat. The rotors consist of two iron discs connected by ribs. When the brakes are applied, the brake pads are supported on the two iron discs. There are many models of rotor ribs, but they all do the same. They help dissipate large amounts of heat caused by friction between the rotor and the brake pads. These ribs allow hot air to escape from the rotor and also direct the air to cool the rotor. It is very important that the rotors can eliminate the large amount of heat to function properly. 

Now that we've described how disc brakes work, let's look at the difference between front and rear disc brakes. The only difference is that the rear disc brakes must contain a parking brake / emergency brake. The parking brakes must be completely separated from the normal hydraulic brakes of the vehicle in case of failure of the normal brakes. A parking brake is connected to a rear brake in two ways. First, the rear disc brakes include a corkscrew that, when the parking brake is applied, pushes a piston toward the pad to stop the vehicle. Rear disc brakes can also include a separate drum brake system. Therefore, when the parking brake is applied, the parking brake cables pull the brake lever that compresses the brake shoes to stop the vehicle.