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What is the purpose of the metal piece outside the brake pad?

1 Answers

MatthewMarie

07/30/25 3:48am

The metal piece outside the brake pad serves as a warning indicator. Relevant information about brake pads is as follows: 1. Classification: Automobile brake pads can be categorized by type into brake pads for disc brakes, brake shoes for drum brakes, and brake linings for large trucks. Brake pads are mainly divided into the following categories: metal brake pads and ceramic-carbon brake pads. Metal brake pads are further divided into low-metallic brake pads and semi-metallic brake pads, with ceramic brake pads classified under low-metallic. Ceramic-carbon brake pads are used in conjunction with ceramic-carbon brake discs. 2. Braking principle: The working principle of braking mainly relies on friction. By utilizing the friction between the brake pad and the brake disc (or drum), as well as between the tires and the ground, the kinetic energy of the moving vehicle is converted into heat energy through friction, thereby stopping the car. A good and efficient braking system must provide stable, sufficient, and controllable braking force, along with excellent hydraulic transmission and heat dissipation capabilities. This ensures that the force applied by the driver on the brake pedal is effectively transmitted to the master cylinder and sub-cylinders, while avoiding hydraulic failure and brake fade caused by excessive heat. 3. Service life: The replacement of brake pads depends on how long the pads have been in use on the vehicle. Generally, brake pads need to be replaced after traveling more than 80,000 kilometers. However, if a grinding noise is heard from the wheels, the brake pads should be replaced regardless of the mileage.

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What is the function of urea solution for heavy trucks?

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What is the sequence between handbrake and gear shifting?

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How to Replace the Air Filter in a Mondeo?

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What is the difference between part-time four-wheel drive and on-demand four-wheel drive?

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