Brake Rotor Warping

 Deformation of the brake rotor that causes vibrations or juddering during the applications of brakes is called as brake warping. Rotor warping is usually not visible to the naked eye but can be felt by pulsating brake pedal movement when brakes are applied at high speed. Rotor warping reduces brake performance and causes uneven pad wear. 

 Pad induced warping: It is dominant at high temperature around 600 degree Celsius. High temperature and forces applied due to braking tend to deform the rotor.

 Hard and long braking at high temperatures : Long braking on rotors that are at high temperatures causes too much pad material sticking to the rotor. This kind of deposition is uneven and when cooling takes place the difference in cooling rate of both the rotor and the deposited pad material deforms the rotor.

Rapid Cooling: Rapid cooling of brake rotor after it reaches high temperature causes them to deform.