Brake Pad

Brake pads, commonly known as brake linings, are replaceable friction components within disc brake systems that perform the braking action. They consist of a steel backing plate and a layer of high-performance friction material. During braking, the pad is pushed by the piston within the caliper, clamping onto both sides of the rotating brake disc like a sandwich. This friction converts kinetic energy into heat, achieving deceleration or stopping.
Key differences from brake linings:
Application: Brake pads are exclusively used in disc brakes. Brake linings are used in drum brakes or band brakes.
Physical form: Brake Pads are independent, flat block components comprising a steel backing plate and friction material. Brake Linings are typically curved friction material layers without independent structure, requiring riveting or bonding to larger structural components like Brake Shoes.
“Brake Pad” refers to the independent friction block used in disc brakes, while “Brake Lining” denotes the friction layer attached to structural components of shoe-type or band brakes.
From a professional perspective, brake pads are among the most technologically advanced and rapidly evolving components in disc brake systems. They are not standalone components but form a “friction couple” with the brake rotor. The material compatibility between these two elements directly determines the performance ceiling of the entire braking system. Therefore, selecting the right brake pads essentially means choosing a specific “operating character” for the braking system—whether prioritizing extreme stopping power, extended longevity and low noise, or striking a balance between these attributes.