This section provides overview, applications, and principles of brake linings. Also, please take a look at the list of 11 brake lining manufacturers and their company rankings.
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Brake lining is a friction material that is a component of a brake system. Brakes convert kinetic energy into thermal energy through friction. Brake lining refers to the friction material that provides that friction.
However, brake linings are not used in regenerative brakes where there is no physical contact. Generally, those attached to disc brakes are called pads, while those attached to drum brakes are called shoes.
Brake linings are used on equipment in which braking devices are incorporated. They are used in a wide range of applications, from industrial to consumer products, and the main examples are as follows.
Brake devices that use brake linings include disc brakes, drum brakes, and band brakes. The principle of each is as follows.
In a disc brake, the rotor rotating with the shaft is sandwiched by the brake lining to generate friction.
In a drum brake, the brake lining is pressed against the drum, which rotates with the shaft to generate friction.
A band brake generates friction by clamping the drum, which rotates with the shaft, with a band with brake lining.
All brakes convert kinetic energy into thermal energy. When selecting brake linings, there are conditions such as operating temperature and coefficient of friction. In addition, factors such as discomfort noise and vibration generation during braking also exist, so the types and blends of friction material materials vary widely and are made by blending more than 10 different raw materials.
Brake linings and brake pads are both worn parts used in brakes. For drum brakes, they are called "brake linings," and for disc brakes, they are called "brake pads."
As wear materials, both wear during braking to slow down the object. In the case of automobiles, materials have used that function reliably even when affected by snow and mud.
In the case of a vehicle that is repeatedly driven at high speed and stopped abruptly, such as a racing car, the brake lining generates a lot of heat and turns bright red. Materials that do not impair braking performance under these conditions should be used. In order to use brake linings that are appropriate for the vehicle, the manufacturer's genuine brake linings should be used when replacing the brake linings.
Brake linings are designated as periodic replacement parts because they wear out with use. Replacement timing is determined by checking the mileage and measuring the amount of wear. Longer mileage increases the frequency of braking, so brake lining wear is more likely to progress.
Even if the mileage is short, premature wear may occur due to frequent emergency braking or overloading. The amount of wear should be measured during periodic inspections, and the replacement of brake linings is recommended when the amount of wear is close to the replacement threshold. In many cases, brake lining wear can be detected by a change in brake sound.
When brake linings become worn, a high-pitched squealing sound is heard when the brakes are applied. This is because the metal parts of the brake lining begin to make contact with each other due to wear. If you hear an unpleasant sound when braking, you should replace the brake linings as soon as possible. Continued driving under this condition may result in a serious accident due to reduced braking force.
*Including some distributors, etc.
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