Perforated brake discs: description, specifications and types

Modern cars are equipped with a large number of electronic systems, without which it will not be possible to comfortably operate the machine. In addition to electronics, manufacturers also introduce new components in the design, which are characterized by low weight, high working life and impressive technical characteristics. Some of these components are perforated brake discs. Let's look at how they differ from ordinary cars and why they are so loved by car owners.

Tuning or effective braking?

This product was faced by all motorists. Someone saw these products on the racing track, someone - on a neighbor's car, in stores or tuning salons. They are advertised in car magazines and online sites. Perforated brake discs are highly efficient. At least that's what manufacturers say about them. And yet, without a drop of doubt - this is an excellent opportunity to improve the appearance of the car.

The exterior of the car is relevant for riders and simply car enthusiasts who actively work with the brake and gas pedals. Also, it is worthwhile to think about this acquisition for everyone who appreciates tranquility on the roadway. This is a desirable product for customers, as well as an excellent opportunity to upgrade the braking system. In general, everything depends on the manner of driving and preferences - someone wants to increase the efficiency of the brake system, and someone will install perforated brake discs and just show the appearance.

The whole point is in temperature

The brake disc in the system is designed to provide a frictional friction surface for the pads. The process of reducing speed is the kinetic energy that turns into heat. Friction, which creates pads, causes a rise in temperature, and the car stops. The basic principle in this case is that the process of friction converts the energy of motion into high temperatures. The amount of heat that is created in the disk depends heavily on the speed of movement, as well as on the weight of the car. Another temperature affects how actively the driver presses on the pedal.

A normal braking process at a speed of 80 km / h can increase the heating of the front disc to 95 degrees. If there are several cycles of acceleration and speed reduction and they will often alternate, then the metal temperature will rise to 300 or even 400 degrees. If the growth of this parameter continues further, then the efficiency of the system decreases. You can stay and do not have any brakes, which is quite dangerous. They will be lost when there is too much heat and the system is no longer able to relieve pressure.

As a result, for efficiency, you will have to press the pedal with great effort. As a result, the system will reach a point where there is no possibility of creating sufficient friction, regardless of how much to push the pedal. Naturally, with an ordinary driver who drives on a city road, using a calm driving style, this will not happen. The staff disk is designed to cool.

However, if the driving style changes for even a minute in a more aggressive direction, or the road conditions are changed to extreme ones and require active control, then the original discs will not be able to cope so effectively. Therefore, perforated brake discs are not just an element of design. Due to the perforation, the cooling capacity is greatly improved, and the quality of braking is also improved.

Principle of operation

An element with a perforation is a completely normal disk.

However, on the working plane there are holes through which a huge amount of excess heat energy and gases evaporates during the movement. Thanks to these holes, the vented perforated ventilated disc, pads, as well as other, not less important, parts of the system are more efficiently cooled. Manufacturers of such components conduct regular tests. On cars that are equipped with different disks, it is the perforated discs that showed better results, and the temperature difference was 100 degrees or more.

The colder, the more effective

The effectiveness of the system depends on how cold the disks are. The lower their temperature, the faster and more efficiently the car slows down. One of the advantages of perforated elements is that, thanks to the holes, the pads are also cleaned.

This factor has a positive effect on friction. Another advantage is quick drainage - the pedal is no longer "sluggish". It will always be under the driver's foot, and the likelihood that the brakes will suddenly fail is very low.

Ventilated discs

A ventilated element is also distinguished. Here on the surface there are special incisions. Thanks to them, air is blown better through the disc. This helps the parts to cool faster. Such accessories can be found on the front brakes.

The fact is that in the process of braking it is to the front drive that a lot of work is being done. On the rear brakes, manufacturers install conventional drives. But many modern car manufacturers have now started mounting a brake disc rear perforated. This is true for expensive and powerful cars.

On the design of incisions

The type of notches affects how quickly the disk cool down. Manufacturers today use more than 70 different variations of design. Some notches are straight, others are curved, others are segmented. A huge number of elements go out from the center. Others pass over the surface in a zigzag pattern. For greater efficiency, it is necessary that as much air flow as possible passes over the surface of the disk. The incisions work like a fan blade. Due to this, air is blown.

Risk of cracks

The disc brake front is perforated - this is an excellent design element, but only if the choice of the disc came with all responsibility. The holes that are drilled through the metal of the disk create stress points.

If their edges are not rounded enough to dissipate pressure, then the pores can concentrate the stress at one point. As a result, a crack appears that will quickly spread over the entire surface of the part. There were cases when motorists made a drill on their own. Some discs scattered on the go. A large number of holes can significantly weaken the disc even in the event of a normal rounding of the holes. The element should not resemble Swiss cheese. This is to the fact that it is better to purchase a quality product, for example perforated Zimmermann brake discs, than to do the semblance on your own and take risks.

Manufacturers

Car enthusiasts distinguish the products of the German company Zimmermann. It is a respected company that has been producing various components of the brake system for many years. Brembo is another respected brand. This company has also been engaged in disc brake systems for a long time. Today, conventional and perforated Brembo brake discs are installed on machines manufactured in the USA and Europe. These are the most respected brands. The manufacturer is well known among drivers, and the products collect positive reviews.