Question

Why is graphite used as a lubricant in brake linings?

Answer 1

Graphite is structurally composed of polycyclic carbon atoms that are hexagonal in orientation. The distance of carbon atoms between planes is longer and therefore the bonding is weaker.The layers can also over each other and is soft.That's why graphite is used as lubricant in breaking lines.

Answer 2

Explanation:

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graphite modulates the braking effect of friction linings and essentially contributes to braking comfort and to noise reduction. The outstanding thermal conductivity properties of graphite also play an important role in friction linings.

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