Disk brakes are similar to a bicycle brakes. When pressure is applied on the handle, this strip of a metal string tightening two shoes against the rim ring of the bike, causing friction with rubber pads. Similarly, in a car, when pressure is applied on the brake pedal, this forces liquids circulating through pistons and tubes to tighten the brake pads. In a disk brake, the pads tighten the disk instead of the wheel, and the force is hydraulically transmitted instead of through a cable.
The friction between the pills and the disc slows the vehicle, making the disc warm a lot. Most modern cars have disk brakes on both axles, although in some steering motorization models or with some years behind them, the drum brakes are kept behind. Anyway, the stronger the driver press the pedal, the greater the pressure inside the brake lines and the tightening the pills will tighten the disc. The distance that must go through the pills is small, only a few millimeters.
As a result of friction, brake pads need maintenance or, otherwise, problems such as squeaks or crunches may appear and a braking power that should not be optimal. If problems are not solved, it can be derived in a suspense technical inspection (ITV). The most common type of service required for disc brakes is little more than changing the pills.
These, generally, have a piece of metal called wear indicator. When the friction material is in the latter, the indicator will come into contact with the disc and emit a screech. This means that it is time to put new brake pads. Verifying the wear will require some tools and time, as well as ensuring that the tightening of the wheel bolts is correct. For some it can be too much, so if you want to save time, it is best to go to a trusted workshop.
Post time: Dec-19-2021