The function of the lateral stabilizer bar bushing is to prevent excessive tilting of the vehicle body and improve the driving stability of the car on uneven roads during turning. When the car turns, the suspension of the inner wheel of the turn will be stretched and the suspension of the outer wheel of the turn will be compressed. At this time, the anti roll bar will produce a twisting suppression effect to prevent the vehicle from rolling over.
The lateral bar (anti roll bar, stabilizer bar), also known as the anti roll bar or stabilizer bar, is an auxiliary elastic component in the automotive suspension. The stabilizer bar is actually a transverse torsion bar spring, which can be regarded as a special elastic element in function. When the vehicle body only moves vertically, the deformation of the suspension on both sides is the same, and the stabilizer bar does not work. When the car turns, the body tilts and the suspension jumps on both sides are inconsistent. The outer suspension will press against the stabilizer bar, causing it to deform. The elasticity of the rod will prevent the wheels from lifting, keeping the vehicle as balanced as possible and providing lateral stability. The material selection is generally based on the design stress of the stabilizer bar, and currently 60Si2MnA material is widely used in China. Japan recommends using Cr Mn-B steel (SUP9, SuP9A) and carbon steel (S48C) for high stress stabilizer bars. In order to extend the service life of the stabilizer bar, shot blasting treatment should be carried out. In order to reduce weight, some stabilizer bars are made of hollow center circular pipes, with a ratio of approximately 0.125 between the wall thickness and outer diameter of the steel pipe. At this point, the outer diameter increases by 11.8% compared to the solid rod, but the mass can be reduced by about 50%.
