A moving vehicle builds up kinetic energy, which is a factor of mass and speed. Stopping the moving vehicle requires shedding that energy and there are two ways to do this. The first is to let the drive train gradually reduce vehicle movement, but this can be a slow process and is only useful in certain situations. The more effective way that an automobile can shed this energy is with friction and this is where the brakes come into play. Vehicles can use two types of brakes depending on their age and design. Original braking systems used the drum method and it remains in use on the rear axle of some newer model automobiles. brake repair on drum brakes may include the replacement of the shoes, turning the drum and rebuilding the wheel cylinders.
Modern vehicles use a more effective method for braking based on a rotor (disc) and a set of pads. Pressing the brake pedal starts a hydraulic action that puts pressure on a piston. The piston is on one side of the brake caliper so it pushes the main pad against the rotor. Meanwhile, the caliper is moving just enough so that the other pad is being pulled against the rotor. Squeezing the pads together creates a lot of friction and the ability to stop quicker than the drum method of braking. Unfortunately, this friction wears down the pads and forces the need for brake repair. Replacing the pads is fairly simple, but fixing the worn brakes usually requires more than that because the friction causes rotor wear. Worn rotors can be turned smooth provided there is enough metal on them. The mechanic can measure the rotor to determine if this is possible.
One potential problem with disc brakes is fractures on the rotor. A fracture may occur if the rotor is too thin or the braking surface overheats. Another possible cause of fractures is the improper casting of the rotor. Damaged wheel rotors need to be replaced because they can wear the brakes out quicker than normal and they may break unexpectedly. Plus, poor rotors can result in unexpected pulling or loss of steering control when attempting to stop the vehicle. Learn more about repairs for brakes from the experts at website. You can also connect with them on Facebook.
