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What is the normal range for brake pad thickness?

1 Answers

AllieDella

07/30/25 3:40am

A new brake pad has a thickness of approximately 1.5cm, which gradually wears down with continuous friction during use. Relevant information about brake pads is as follows: 1. Classification: Automotive brake pads can be categorized by type into: brake pads for disc brakes, brake shoes for drum brakes, and brake linings for heavy trucks. Brake pads are mainly divided into the following categories: metal brake pads and carbon-ceramic 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. Carbon-ceramic brake pads are used in conjunction with carbon-ceramic brake discs. 2. Braking Principle: The working principle of braking primarily relies on friction, utilizing the friction between the brake pads and brake discs (or drums) and between the tires and the ground to convert the kinetic energy of the moving vehicle into thermal 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 to ensure that the force applied by the driver on the brake pedal is effectively transmitted to the master cylinder and slave 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 friction sounds are heard from the wheels, the brake pads should be replaced regardless of the mileage.

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