The compact shape provides design space and allows an elastomer layer around the aluminum core, thereby providing low axial stiffness, which means high isolation in push and pull directions. In contrast, radial stiffness is high so as to provide a direct steering feel and ensure the vehicle’s optimized handling. Small vibrations from the road are isolated to avoid constant shaking of the steering wheel.
In addition to reducing vibration, steering column bushings allow progressive damping characteristics, which are important for a more direct steering feel and control. This progression can be precisely tuned by elastomer geometry and the integrated stopper system.