Solving Brake Noise With the Right Brake Pad and Shim
When a brake pad makes contact with the rotor, it causes the brake pad and rotor to vibrate. This is “ground zero” for all brake noise. If the vibration is transmitted through the brake pad’s backing plate and into the caliper and bracket, this could generate noise the driver could hear if the frequency is between 20- and 20,000-Hz.
Bedding Brake Pads
There are many opinions on bedding. Some manufacturers say it is not needed while others say it is an absolute necessity. Bedding is a process by which a thin layer of friction material from a set of new brake pads gets transferred to the rotor surface. This practice that many professionals let slip by can help improve the performance and quality of any brake job.