盘式制动转子是金属盘，与制动垫和卡尺一起使用以减速车辆。制动转子直接固定在轮毂上，因此它们与车轮速度直接旋转。当刹车踏板凹陷时，卡尺将刹车片挤在旋转的转子上，以减速并停止车轮和车辆。由于转子通过与刹车片直接接触的摩擦来减速车辆，因此它们确实如此wear out over timeand will eventually need to be replaced. When rotors have a problem, they usually produce any of the following 4 symptoms that alert the driver they require attention.

1.嘈杂的制动器

噪音通常与不良制动转子相关的第一个症状之一。如果转子扭曲（意味着不是完全平坦）或严重磨损，则可能会产生尖叫或尖叫的声音。通常，翘曲的转子会产生吱吱声，而严重磨损的转子会产生刮擦声。但是，尖叫声也可能来自磨损的刹车片。

2.刹车的振动

Another symptom of bad brake rotors is excessive vibration or pulsation coming from the brakes. Warped or excessively worn rotors may vibrate irregularly and cause vibrations that can be felt in the pedal, and sometimes through the vehicle’s steering wheel or chassis. Additionally, the brake pedal may feel like it’s pulsating when pressed due to warped brake rotors. This occurs because the pedal is no longer making contact with the surface of the rotor.

3. Grooves or Score Marks on the Rotor

Another symptom of bad or failing rotors is visual scoring or grooves on the face of the rotor. Repeated contact with the brake pads can develop these marks over time. Rotors are designed to have a thickness that wears down over time. However, should it degrade to a certain point, it lowers the overall safety of the vehicle.

4. Increased Stopping Distances

Scoring and grooves in a rotor can impede its capacity to slow the vehicle, as well as cause vibration and pulsation that can be felt in the pedal. Plus, when the pedal no longer interacts with the brake rotor, the ensuing vibration may make it feel like the car will not stop at all. Inability to stop or even extended stopping distances can be highly dangerous, especially if the driver is forced to make an emergency stop.

The disc brake rotors are a very important part of the braking system, and as a result are critical to the overall safety and handling characteristics of the vehicle. If you suspect your rotors may be worn or damaged, have the vehicle inspected by a professional technician to determine if your car needs a制动转子/圆盘更换.