The brake pads of commercial vehicles (such as trucks, buses, engineering vehicles, etc.) have significant differences from those of passenger vehicles in terms of materials, structure, performance, etc. The main features are as follows

1. The material is more wear-resistant and heat-resistant ‌
High coefficient of friction: Commercial vehicles carry greater loads and require stronger braking force. Brake pads typically use ‌ metal-based materials (such as copper, iron, and steel fibers) ‌ or ‌ ceramic-metal composite ‌ materials, which have a higher coefficient of friction (0.4-0.5, while passenger vehicles have approximately 0.3-0.4).
High-temperature resistance: Frequent braking of commercial vehicles can easily generate high temperatures (up to over 600°C), so brake pads should be made of ‌ high-temperature resistant formulas ‌ (such as semi-metallic, low-metallic or ceramic materials) to prevent thermal fade.
2. Thicker, stronger ‌
Greater thickness: Brake pads for commercial vehicles are usually thicker than those for passenger vehicles (10-20mm, about 8-12mm for passenger vehicles) to extend their service life.
The backplate is more robust: It adopts ‌ high-strength steel backplate ‌, which prevents deformation and cracking and is suitable for high-load braking.
3. Better heat dissipation performance ‌
Ventilation slot design: Some commercial vehicle brake pads are equipped with ‌ heat dissipation holes or grooves ‌, which help with rapid heat dissipation and reduce heat attenuation.
Split design: Some heavy-duty vehicles adopt ‌ split brake pads ‌, which are convenient for replacement and heat dissipation.
4. Longer service life ‌
Stronger wear resistance: Brake pads for commercial vehicles are typically made of ‌ high-hardness materials ‌, with a lifespan of over 100,000 kilometers (about 30,000 to 60,000 kilometers for passenger vehicles).
Replaceable design: Some commercial vehicle brake pads adopt ‌ replaceable friction blocks ‌, reducing maintenance costs.
5. Weak noise control ‌
Due to the high hardness of brake pads in commercial vehicles, the ‌ noise is relatively large ‌ during braking (especially when the vehicle is cold), but it usually does not affect safety.
6. Adapt to different working conditions ‌
Dry/wet brake pads: Some commercial vehicles (such as mining vehicles and engineering vehicles) use ‌ wet brake pads ‌ (oil-cooled or water-cooled) to prevent failure due to high temperatures.
Drum brake pads: Some commercial vehicles still use ‌ drum brakes ‌, and the shape and material of the brake pads are different from those of disc brakes.

The core features of commercial vehicle brake pads are ‌ high wear resistance, heat resistance, high friction coefficient and long service life ‌, but they are relatively noisy and expensive. When making a selection, it is necessary to match the appropriate type based on the vehicle model, load capacity and usage environment (mountainous areas, cities, mining areas).