The difference between brake discs and brake pads
The brake system is generated by friction between the brake pads and the wheel drum or disc to produce friction, so as to achieve the braking effect. The current mainstream family car brake form is: brake pad, brake disc composition.
Brake pads and brake disc is a set of combinations, brake disc is a round steel disc, made of steel, high strength, wear-resistant, it is fixed with the rotating wheel, with the wheel rotation.
Brake pads are two pieces of friction, each half a hand so big, made of graphite and other wear-resistant materials, it does not turn, fixed on the shelf, behind it is a hydraulic cylinder, brake, hydraulic pump to push two brake pads brake disc clamping brake effect. The brake disc is wear-resistant and expensive than the brake pad, so each maintenance only changes the brake pad, without changing the disc, so as to save.
Brake pads can indeed be understood as sheets, because it is relative to the brake disc, the head is indeed much smaller, if the brake disc is rolling with the wheel, then the brake pads relative to the longitudinal vehicle movement, it is fixed, can make it move is the need to brake, it will cross the lightning to touch the brake disc, to achieve the vehicle parking desire. In the brake system of the car, the brake pads are the key safety parts, and the brake pads play a decisive role in the quality of all braking effects.
The brake disc replacement cycle can be determined according to the number of brake pad replacements. Usually for every 2 replacement of the brake pads, you need to replace the brake disc once. But it's more dependent on the test results. (Generally speaking, the brake disc is replaced once for 60,000-80,000 kilometers).
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