The maximum wear limit of the brake disc is two millimeters, and it is necessary to replace it with a new one after reaching the limit. In practical application alone, most car owners have not strictly followed this standard. In fact, the frequency and frequency of changing brake discs depend on individual driving habits, and the approximate measurement criteria are as follows:
1. Check the replacement frequency of the brake pads. If the replacement frequency of the brake disc is high, it is necessary to check the thickness of the brake disc more, because the use of the brake pads and the use of the brake disc are relatively worn, so it is necessary to regularly check the brake disc.
2. Car owners can also consider exchanging according to certain rules. For example, every time the brake pads are replaced, the brake discs are replaced once.
3. Determine based on wear and tear. Due to the normal wear and tear of the brake disc, as well as the quality of the brake pads or brake discs and the wear caused by foreign objects during normal use, if there are some deep grooves or errors in the wear of the brake hub caused by foreign objects, it is recommended to replace it. This kind of wear and tear can directly affect our driving safety.
4. It depends on checking the wear of the brake discs. Check if there are deep grooves exceeding one millimeter on the brake disc, check if the thickness on both sides of the brake pads is consistent, and if there are any unevenness or cracks on the brake disc. If the above problems occur, the brake discs need to be replaced immediately.
5. The lifespan of the brake disc is determined by its own quality and the individual driving habits of the car owner. In most cases, the service life of the brake disc should be over 100000 kilometers.