Brake rotors and brake pads slow or stop your car through the use of friction.  But, did you know that there are two different friction mechanisms at which brakes operate?  If not, no need to worry.  This article will tell you what these two friction mechanisms are and why it will prove useful for you to know.  

 

So, what are the two friction mechansims you say?  The answer is abrasive and adherent friction.  Abrasive friction and adherent friction are the two ways your brakes absorb and handle heat when stopping. While all brakes display a bit of both mechanisms, certain vehicles might utilize one over the other.

 

Abrasive friction is the mechanism by which the energy of motion is transferred to thermal energy

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There are many choices when it comes to types of brake pads and friction materials. Generally, what you want are brake pads that are equivalent to original equipment as these brake pads are what the vehicle’s manufacturer recommends. However, it’s no secret that original equipment parts can be quite costly. Fortunately, there are many aftermarket brake parts companies which offer OEM equivalent or premium grade brake pads that may perform just as well, if not better than stock and at a better price point. This article is geared towards helping you identify and choose a brake pad that best suit your

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Disc Brake Drag

Dec 4, 2012 3:02:19 PM

Disc brake drag is when your brakes fail to release completely after you have removed your foot from the brake pedal.  As you may already know, the continuous use of your brakes may cause them to overheat—brake drag is problematic because the brakes would remain applied which results in overheating and damaged parts.  Let us begin by mentioning that a little brake drag is normal and brake pads and rotors are usually in slight contact.  If you were to spin your wheel, the wheel should be able to partly turn on its own.  If the wheel does not spin and there is a lot of turning resistance, then there may be more brake drag present than you want.

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Why are my brakes making noise?

Nov 2, 2012 3:52:48 PM

There are many conditions at which your brakes may make noise.  These noises may vary depending on: the brake pad material, pad wear, improper installation of brake shims or clips, or if there is an issue with the brake rotors.  What people need to know is that some brake noises are normal, while others are indicative of a problem that needs to be fixed.  Below we discuss the different conditions of why brakes could be making noise and whether or not it should be of concern.

 

Brake Pad Material


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Brake Rotor Balancing

Oct 15, 2012 3:05:10 PM

Why is there an indentation or “cut” on the side of my brake rotors?  Some brake rotors have what appears to be an indentation or piece of the rotor material removed from the edges, similar to the photo on the right.  In any case, this "cut" on the side of the brake rotor is actually meant to reduce something known as rotating unbalance.  People may ask the question above or even claim their brake rotor is irregular or damaged altogether.  In actuality, this characteristic about the rotor does not mean there is anything wrong with the rotor, but that the part was balanced or mill balanced.

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