In the automotive world, brakes are one of the most important components to ensure driving safety. There are different braking systems, but in this article we will focus on comparing disc and drum brakes, as well as learning about the differences and advantages of each of them. In addition, we will also analyze the types of brake discs available on the market.
What are disc and drum brakes?
Before going into detail about the differences and advantages of each system, it is important to understand what disc and drum brakes are.
Disc brakes are a braking system that uses a metal disc that rotates next to the wheel. When the brake pedal is depressed, the brake pads press on the disc, creating friction and stopping the movement of the wheel.
On the other hand, drum brakes are a braking system that uses a metallic drum that rotates next to the wheel. When the brake pedal is depressed, the brake shoes expand into the drum, creating friction and stopping the wheel from moving.
Differences between disc and drum brakes
Next, we will analyze the main differences between disc and drum brakes:
In terms of performance, disc brakes are often more efficient than drum brakes. This is because the brake discs have a greater capacity to dissipate the heat generated during braking, which prevents overheating and improves braking capacity.
Fading is a phenomenon that occurs when the brakes get too hot and lose effectiveness. In this sense, disc brakes are less prone to fading than drum brakes, since the discs have a larger contact surface and better cooling capacity.
When it comes to maintenance, disc brakes are usually easier to maintain and repair than drum brakes. This is because the brake discs are more accessible and can be replaced individually, whereas on drum brakes the entire assembly needs to be disassembled to access the brake shoes.
In terms of price, drum brakes are often cheaper than disc brakes. This is because disc brakes are more expensive to manufacture and require an additional brake pad and caliper system.
Types of brake discs
There are different types of brake discs available on the market, each with its own characteristics and advantages. Next, we will mention some of the most common:
Ventilated discs are those that have fins inside that allow better heat dissipation. These discs are ideal for vehicles that require greater braking capacity, such as sports cars or those that carry heavy loads.
Solid discs are those that do not have fins inside. They are cheaper and are usually used in vehicles with less power and weight.
Perforated discs are those that have holes on their surface. These holes help improve braking capacity, as they allow better ventilation and prevent the accumulation of gases and brake residue.
Grooved discs are those that have grooves on their surface. These grooves help improve braking capacity, as they allow better evacuation of braking gases and residues.
What is the safest braking system?
Both disc brakes and drum brakes are safe braking systems and comply with established safety standards. However, disc brakes tend to offer better performance and resistance to fading, so we could consider them slightly safer.
What is the most widely used braking system in today's vehicles?
Today, most vehicles use disc brakes on the front wheels and drum brakes on the rear wheels. This combination makes it possible to take advantage of both systems and ensure good braking performance in different situations.
In conclusion, disc and drum brakes are efficient and safe braking systems, each with its own characteristics and advantages. Disc brakes offer better performance and resistance to fading, while drum brakes are more economical. The choice between both systems will depend on the needs and preferences of each driver. As for brake discs, there are different types available on the market, such as ventilated, solid, perforated and slotted, each with its own advantages. Always remember to maintain good brake maintenance and perform periodic checks to ensure driving safety.
We hope this article has been useful in solving your doubts about disc and drum brakes. If you have any additional questions, feel free to leave them in the comments. We will be happy to help you!
Until next time!