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The Specifications of Anti Roll Bar

By David Bens

| November 25th 2011 | Views:

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The anti-roll bar or a stabilizer or a sway bar is referred to a bar or a tube that connects the left part of the suspension system to right part and vice versa. The connection point lies in the lower control arm of the suspension system. By providing a connection this keeps the left and right portion in the same level. Most of the cars have front anti-roll bar and the sports car have both the front and back bars.

Reducing body roll by adding the roll resistance of the springs is the primary function of anti-roll bars. This is quite a necessary item to tackle the road regulation. This bar is also called sway bars which is basically a torsion spring made to resist the roll motion of body. It consists of a u shaped steel bar which connects the body with the left and the right parts. There is a flexible joint that connects each end of the bar to an end link. In turn the sway bar end link is connected to a spot near the axle or the wheel. This is done to transfer the forces from a heavily loaded axle to its opposite side.

The main functions of the anti roll bar can be divided into two large categories. The first is to decrease the body lean. This is dependent on the total roll stiffness of the car or the vehicle. The increased stiffness of the roll does not change the total weight transfer but just reduces the body lean. The other function of the bar is to tune the handling balance of the car which is also a major function. Though there is some advantages with the anti-roll bar the major disadvantage is that on a broken road it produces jarring and side to side body motion.

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