Brake pads are an important part of systems for all types of vehicles that are equipped with scion . pads are steel backing plates with friction material bound to the surface facing the brake disk xb.
pads convert the kinetic energy of the car to thermal energy by friction. Two xb pads are contained in the caliper with their friction surfaces facing the rotor. [1]When the are hydraulically applied, the caliper clamps or squeezes the two pads together into the spinning rotor to slow/stop the vehicle. When a xb brake pad is heated up by coming into contact with either a drumor rotor, xb it starts to transfer small amounts of friction material to the disc or pad (that is the reason a brake disk has a dull grey). The brake rotor and disk (both now with friction material on), will then "stick" to each other to provide stopping power. The friction of the pad against the disk is however responsible for the majority of stopping power
Asbestos was widely used in pads for its heat resistance, but due to health risks xb it has now been replaced by a mix of alternative xb fibers such as mineral fibers, cellulose, aramid,PAN, chopped glass, along with steel and copper fibers. Depending on the properties xb of the material, disc wear rates may xb vary. The properties that determine material wear involve trade-offs between performance and longevity. Newer pads can be made of exotic materials like ceramics, Kevlar and other plastics.Vehicles have different braking requirements; friction materials xb offer the application-specific formulas and designs. Brake xb pads with a higher coefficient of friction provide good braking with less brake pedal pressure requirement tend to lose efficiency at higher temperatures, which means that the stopping distance will be increased. Brake pads with a smaller and constant xb coefficient of friction don't lose the efficiency at higher temperatures and are stable but xb still require higher brake pedal pressure xb.
- The disc brake calipers, which contain the pads, are visible with the wheels removed, There is an outer xb pad and an inner pad in each caliper where the rotor is sitting in between. All components should be inspected including the pads, rotors and brake calipers for anything that is out of the ordinary. Most calipers have a window or an opening on top of the brake caliper to inspect the brake pad thickness. Generally the pad has to be replaced if the material has worn to 3/16-inch or less.
|