There are many types of Disc Rotors nowadays. How much do you know about the types of brake discs?

Today\’s automobile braking systems are mainly divided into two types: disc brakes and drum brakes. We have discussed their differences with you before . The most popular disc brakes can be divided into many types, and now there are a dazzling array of modified disc brake accessories on the market. Today, let me briefly list the types of Disc Rotor and explain their characteristics. !

1. Solid brake disc

Solid brake discs are basically non-porous solid metal brake discs. They are simple in structure, easy to manufacture and low in cost. However, the heat dissipation performance is worse than that of perforated brake discs, and they are usually installed on the rear brake.

2. Perforated ventilation tray

The brake disc most commonly used in ordinary civilian cars adopts a hollow design. There are many holes on the circumference of the brake disc, and these holes are used to dissipate heat from the brake disc, prevent the brake disc from overheating, reduce thermal attenuation and extend the life of the brake pads. In addition, the braking performance is also better than solid brake discs. With the advancement of automobile technology, the channels inside today\’s perforated ventilation discs have evolved from the original straight channels to curved channels and \”pillar-type\” channel designs.

3. Perforated brake disc

Perforated brake discs are basically holes drilled into the surface of ordinary ventilated discs, and are mostly used on high-performance cars. Since deceleration at high speed requires greater braking force, strong braking will generate a large amount of thermal energy gas and form a thin film on the surface of the brake disc, causing the brake pads to be unable to exert their full effect and causing the problem of brake weakening, which we call This situation is Brake Fade. By drilling holes on the surface of the brake disc, heat can be dissipated faster and heat attenuation can be reduced. At the same time, the aged surface layer on the brake pads can be scraped away to ensure that the brake pads are in a normal friction state.

4. Score the brake disc

Similar to the principle of perforated brake discs, scored brake discs are also scored on perforated ventilated discs, allowing the hot air generated during braking to flow out through the grooves, and allowing the friction between the brake pads and the brake disc to generate The dust is dispersed into the air, which increases the friction between the brake disc and brake pads and maintains maximum braking performance. However, increasing friction also means that the life of the brake pads will be shortened, but like the perforated brake disc, the visual effect is great (Keke~).

5. Drilled and scored brake discs

The difference with the design that combines scoring and drilling is that this type of brake disc usually only drills halfway through the surface instead of drilling it completely. Therefore, it not only provides space for gas to escape, but also maintains the structural integrity of the brake disc. Integrity, it can also avoid the lubrication phenomenon caused by the water film on rainy days and prevent the braking effect from weakening.

6. Waved “wave-type” brake disc

Different from ordinary round brake discs, this type of brake disc adopts a \”wave\”-like circumferential design. This type of design has actually existed on motorcycles for many years. It was not until Audi acquired the heavy machine brand Ducati that it began to The design concept is introduced into its high-performance models. The biggest advantages of this type of design are lighter weight and better heat dissipation. Of course, it goes without saying that the appearance is also very visual, and it looks cool when you look at it!

7. Ceramic brake disc

The ceramic here is not ordinary ceramic, but a reinforced composite ceramic synthesized from carbon fiber and silicon carbide at a high temperature of 1,700°C. It is not only less than half the weight of ordinary cast iron brake discs, but also has much higher heat resistance. In addition to not easily generating hot gases, they are also more resistant to thermal attenuation. Even if they are used extensively on the track, they are less likely to warp or deform, and their lifespan is longer than ordinary cast iron brake discs. However, because the manufacturing cost is much higher, the price is not cheap, and the brake pads are also made of special materials, so even the brake pads are not cheap. They are definitely not brake discs suitable for ordinary civilian cars!

Tags: disc brake / featured / rotor / Type