摘要: |
The automobile has gone through many changes over the years. While some are noticeable, like carburetors and fuel injection, brake pads, rotors, drums and shoes look similar to how they did 20 years ago but are really quite different. Semi-metallic and ceramic brake pads have advantages and drawbacks. Semi-metallic style pads are great for work trucks, performance vehicles and overloaded minivans. Ceramics are great for light duty trucks, everyday drivers and drivers that love clean wheels. How have friction materials changed the way technicians do brake jobs? It's the way the friction stops the vehicle. Semi-metallic lining uses abrasion to stop and is very hard on rotors. The rotor is being worn down every time the pad touches the rotor, which leads to dust on the wheels. |