What happens to brake pads as they are used?

Brake pads are designed to create friction against the brake rotor to slow down or stop a vehicle. As they are used, this constant friction causes them to gradually wear down. Over time, the material of the brake pads diminishes due to the heat and pressure generated during braking. This wear is a natural part of the brake pad's lifecycle, and if left unaddressed, it can lead to decreased braking performance and potential safety issues. Therefore, periodic replacement of the brake pads is necessary to maintain effective braking function and ensure vehicle safety. Regular inspections can help determine when they need to be replaced based on their thickness and overall condition.