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What Are Brake Rotors On A Car And Their Different Types

You need a reliable braking system in your car to operate it securely. Modern automobiles successfully slow down and stop moving vehicles by combining a number of components, especially when they are driving at a high speed. One of the most crucial parts of braking systems is brake rotors. Let's examine rotors in more detail, including what they are, what they do, and the various kinds of rotors you may locate if and when you need to replace them.


Brake Rotors: An Introduction

Car brake rotors are spherical metal discs attached to the wheels. In vehicles, there are four brake rotors—one for each wheel. The rotors' main function is to use friction to reduce the speed at which the wheels turn. When your car's brake pads are compressed together by calipers, the brake rotor procedure takes place. The friction caused by the pads rubbing against the rotors' surface areas gradually slows wheel rotation and your car's top speed.

What is the use of Brake Rotors?

Along with other braking elements, brake rotors are used to slow down and stop your car. With the possible exception of progressive slowing brought on by friction with the air and the road itself, your vehicle would not be able to properly stop or decelerate following acceleration without brake rotors. Also, your car includes brake pads that press against your wheels to prevent them from spinning. The surfaces those pads press down on are the rotors, for reference. They preserve long-term durability since they are frequently constructed of iron. Brake rotors need regular maintenance and replacement even though they are durable by nature.

Functioning of Brake Rotors 

When you depress your brake pedal, your brake rotors start to work. As you depress your brake pedal, the brake pads press down on the rotors. Remember that each wheel of your car has a rotor attached to it. When you apply the brakes all four wheels slow down in sync. If you're still not using the accelerator, friction is created as the brake pads press on the brake rotors, gradually slowing the rotation of your car's wheels. Naturally, friction slows your wheels down, which generates a lot of heat. 

Types of Brake Rotors 

Brake rotors come in a variety of types. Knowing these is essential so that when the time comes to replace your brake rotors, you can look for and buy the right ones for your car. Here in this blog, we are going to discuss basic types of brake rotors which as a car owner you should know. 

1. Plain Brake Rotor 

The majority of new passenger cars come equipped with plain brake rotors. These brake rotors can normally withstand a moderate level of heat because they are typically made of cast iron. Under ordinary circumstances, such as those of your regular commute, they function reliably. For aggressive driving and excessive braking, which produces a lot of heat, plain brake rotors are not recommended. If they don't have a finish, they are more susceptible to rust. Plain brake rotors simply aren't that appealing without a coating. 

2. Blank & Smooth Rotor 

For passenger cars, including the majority of standard sedans, blank and smooth rotors are the most common. Blank rotors are simple and reasonably priced. However, certain blank rotors made specifically for a manufacturer could be made of recycled steel. Some blank and smooth rotors don't function or survive as long as other rotor types as a result. Since their interior fins are thicker and can better cool the brake pads when they are compressed, original equipment manufacturers or OEM rotors often have a longer lifespan. 

3. Drilled Brake Rotor 

Drilled brake rotors have holes that allow water and heat to escape from the rotor surface. This kind of brake rotor is beneficial for wetter regions since it can boost stopping power. However, because they are prone to breaking and might fail fast in high heat, drilled brake rotors don't perform as well in racing. They do, however, appear more stylish than the basic model. 

4. Slotted Brake Rotor 

Instead of having holes all around the outside of the rotor, slotted rotors have unique slots. Heavy-duty trucks and heavy SUVs frequently employ slotted rotors since these bigger, heavier vehicles typically need more stopping power. For people who routinely pull heavy loads behind their cars, slotted rotors are also preferred. Between the rotor surfaces and the brake pads that are utilized with them, the slots suck extra air. Over time, the rotors benefit from improved cooling, greater heat dissipation, and less debris accumulation. However, slotted rotors might wear out brake pads more quickly and don't last as long as other models. 


5. Drilled & Slotted Brake Rotor

The dust, gas, moisture, and heat can all escape more easily from brake rotors with holes and slots, guaranteeing good contact between the brake pads and the rotors. Extra security and longevity are provided by the combination of a cooler-running, drilled brake rotor and a clean-surface, slotted brake rotor. Drilled and slotted brake rotors look excellent and won't rust as quickly as plain brake rotors, especially with the silver zinc coating provided by Master Power Brakes. These brake rotors are excellent for vehicles that require better heat dissipation, cooling, and high-speed braking. Drilled and slotted brake rotors can, however, have a short lifespan. 


The complete braking system of your car depends heavily on the brake rotors. In order to replace them as needed, be sure to pay attention to how they function and how sensitive your braking action is. When choosing new rotors, don't be afraid to ask a mechanic which rotor type is ideal for your car and driving style. And if you are looking for the best quality rotors for your car then you should stop your search at Lakshmi Motor Company. At LMC you can get the best quality and deals on every spare part for your vehicle. Along with India, we export our spare parts to Morocco, Russia, Turkey, Poland, Israel, and Brazil as well. And we feel proud in saying that we have a loyal and huge customer base in these mentioned countries as well. To know more about our products just visit our website.