The "suspension" system is the general term for all the force-transmitting connection devices between the car's frame and the axle or wheels. Its function is to transmit the force and torsion acting between the wheels and the frame, and to buffer the transmission from the uneven road to the car. The impact force of the frame or body, and attenuate the resulting vibration, to ensure that the car can run smoothly
Suspension is popularly divided into independent suspension system and non-independent suspension system. Non-independent suspension is mostly used on trucks and buses.
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