The cause of abnormal sound of brake pads
Brake pads rattling while driving is a very annoying problem. The main cause of the brake pad noise has a lot to do with the brake pads, so what's the matter with the abnormal noise of the brake pads? Let's take a look with the editor.
The problem of abnormal brake noise has been encountered by many riders while driving. And from time to time, go to the repair shop to check and often tell that there is no problem. But it won't take long for this kind of sound to appear again, so what's the matter with the abnormal sound of the brake pads? Let's follow the editor to find out.
1. Excessive wear of brake pads
The excessive wear of the brake pads has been worn to the alarm pad, and the scraper disc of the alarm pad will sound an alarm when it is worn to a certain extent.
2. The material of the brake pads is excellent
The coefficient of friction is too high, making the pads look like they are cutting the disc.
3. Brake pad material problem
There are granular hard objects on the surface of the brake pads, which screech with the brake disc. The current mainstream material of brake pads is semi-metal material. As the name suggests, there are a lot of metal fibers in the semi-metal brake pad, and the brake disc is made of pearlescent iron. The friction between metal and metal will definitely cause noise.
4. There is a foreign body between the brake pad and the brake disc
Such as sand and gravel, iron pins, etc., due to external forces such as (wind, frictional static electricity) adsorption during driving, stick to the brake pads or discs, and noise will be generated during braking. At this time, it is recommended to clean the brake pads and brakes. plate.
5. Assembly problems, such as spacing, tightness of nuts, etc.
Sometimes the stiffness of the brake pad is just close to the stiffness of the brake disc, which is prone to resonance, and the sound is generated by vibration. Sometimes the noise of brake pads is related to temperature, which has a great relationship with whether the formula of brake pads is resistant to high temperature. Noise, that is, there is less or no heat-resistant and noise-proof material in the raw material of the brake pad.
