Disc-type car brakes and drum-type car brakes compared to disc-type car brakes have the following advantages:
The friction effect of the brake is less affected by the friction coefficient, that is, the performance is more stable; the effect of reducing the water after immersion is less, and only one or two braking can be restored to normal; the output braking torque is the same The size and quality of the brake disc are generally small; the amount of thermal expansion in the thickness direction of the brake disc is extremely small, and the brake pedal stroke is not excessively increased as in the case of the thermal expansion of the brake drum, and the brake pedal stroke is too large; Adjustment, other maintenance work is also easier.
For the clamp disc brake, because the brake disc exposed, there are good advantages of heat dissipation. Disc brake is the lack of low efficiency, it is used for hydraulic brake system required brake actuation pipe pressure is higher, generally use the servo device.
Disc-type car brakes have been widely used in cars. , But in addition to some high-performance cars for all the wheels, most are only used as front wheel brakes, and the rear wheel with the drum brakes to the car when the direction of the higher braking stability. Trucks, disc brakes are also used, but there is still a considerable distance from the popularity.