HowStuffWorks "How long do brake pads last?" - Volkswagen Polo Lim | Volkswagen all cars catalog

HowStuffWorks «How long do brake pads last?» — Volkswagen Polo Lim

7 Мар 2015 | Author: | Комментарии к записи HowStuffWorks «How long do brake pads last?» — Volkswagen Polo Lim отключены


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The lifespan of a given set of pads is dependent on a very set of variables ranging from driving style to the impersonal of physics. Mechanics and manufacturers a loosely agreed upon range from around to 70,000 miles (48,280 to kilometers), but stories of pads a mere 100 miles (160.9 to an astounding 100,000 miles kilometers) abound.

These numbers are understandable. Pads in an array of types and compositions from composite to metallic to — and are attached to an even bewildering array of brake and rotors, all of which affect the of the pad. Added to the mix are heat, and friction in amounts that astound most drivers. the brakes, especially the pads, are of the hardest working components in car.

For the purpose of this article deal solely with pads, meaning the pads in caliper brakes rather drum brakes. The pads in drum brakes are referred to as They serve the same and are often constructed of the same or material, but they function in a different way.

Let’s begin addressing the question by looking at what pads are made of, or their material. Pads generally in four types: organic, metallic, and synthetic. Each of types has their own characteristics must be weighed against pad life:

Organic: Made non-metallic fibers bonded a composite material. The material is treated with friction including graphite, powdered and even nutshells. Fillers are to reduce noise and to affect transfer, among other

Semimetallic: This pad is a mix of organic and metals — ranging steel and iron to copper molded and bonded to form the These pads are harder and resistant to heat.

Metallic: material, formed of a variety and mix of bonded metals, was once extensively in racing. Advances in and semimetallic pad composition have metallic pads almost

Synthetic: This is what is referred to as ceramic pads. pads are made from a of non-organic and nonmetallic material, fiberglass and aramid fibers. pads weigh about the weight of the average pad, are stronger, have better and hot stopping power and they much longer than the pad. They also about twice as much.

For the pad materials above, the best power is found in the organic But this same stopping means more of the pad material is away during a stop. of this, organic pads the least amount of time on Semimetallic pads, the pads are now on most cars, are harder and longer but they don’t as effectively as organic pads do. The goes for ceramic pads, these pads do often longer if the driver is willing to pay the and have a slightly longer distance.

And as pads are all about stopping time to take a look at The reality of mass or specifically a given mass — a car — brings us to the physics pad wear.

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