Brake pad slots

What are the different types of brake pad slots?

Why brake pad manufacturers use slots

Brake pad slots perform triple duty: First, they act like a slot in a sidewalk to provide stress relief areas. If the brake pad is going to crack, the slot becomes the most likely spot. Second, slots break the friction material into separate units to change the frequency and amplitude of brake vibration. Lastly, the slots provide an exit path for the gasses that are generated during braking.

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