In previous articles, we have written about various aspects of tyres, and we’ve also talked about how tyres wear out due to excessive positive or negative toe. Apart from this in/out setting of toe another setting is important, which is camber in or camber out setting. The in and out camber, also known as the positive and negative camber, is similar to the toe setting since, if it is done excessively, it makes the car unsafe for driving by adversely affecting the car’s handling. It can also wear out the tyres before time.
But, before going into the details of how the tyre is affected due to the camber, first, we’ll see what camber is.
Camber is an angle of tyres, compared to the flat ground. Positive camber is called when a tyre is leaning outward from the topmost side, and a negative camber is called when this topmost edge is leaning inwards and towards the engine of the car. A zero camber, on the other hand, is when the tyre is making a 90-degree angle, with the straight and is standing straight. To compensate for the body roll and counter-act the forced positive camber, which occurs when cornering, the camber is kept negative in first wheels specifically.
Now let’s check how camber affects the driving and tyres.
As mentioned before, to counter the cornering effect of the car, the camber of the car is normally kept negative. This means that when the car corners, the tyre from the topmost side is slightly held inwards. This means that to the left, all of the car’s weight will be pushed outwards to the right side. This step is done to compensate for the cornering speed by making the right side shock and spring to compress. And this step in return will make the contact patch of a tyre press and fully bite on the tarmac by bringing the negative camber of right side to the zero camber.
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However, as the excess of anything is harmful, the same is with the negative camber. Excessive negative camber will eat and damage the inside of the tyres. The outer surface of the tyre will face less wear and tear as compared to the inner side. The same can be said for the excessive positive camber. In case of excessive positive, the effect will be opposite, where the outer surface of a tyre will deteriorate rapidly as compare to the inside of the tyre. For this very reason, the rotation of tyre is necessary to ensure proper driver and even wear and tear of tyres.