It transmits road impact force, as well as longitudinal and lateral forces produced during acceleration, braking and steering, to the vehicle body and subframe, and bears various loads during driving.

It guides and restricts the wheel movement trajectory, ensuring wheels move vertically in a designed path. Meanwhile, it maintains critical wheel alignment parameters to guarantee straight driving stability.

It effectively suppresses wheel deviation and body shake, improves steering response, and prevents body floating and rolling during high-speed driving and cornering.

Working in tandem with shock absorbers and springs, it cushions road vibrations and bumps, reduces in-cabin vibration, upgrades riding comfort, and avoids irregular tire wear.