Control Arm Bushing is a key component in the automotive suspension system, mainly playing the following roles:
Guidance and transmission
Connect the wheels to the body of the vehicle, and transmit the force on the wheels through ball joints or bushings to ensure that the wheels move along a specific trajectory.
Buffer and support
Adopting an iron sleeve rubber pad structure, it can adapt to angle changes during steering, reduce vibration and impact, and improve driving smoothness.
Ensure safe operation and control
If the lining is damaged, it can cause restricted movement of the control arm, resulting in decreased steering accuracy, wheel loss of control, and other problems, which may lead to accidents in severe cases.
Polyurethane bushings tend to last longer thanrubber bushings in most automotive applications.
Polyurethane Bushings
Polyurethane is a synthetic material with superiorcorrosion resistance andvibration damping properties. It is commonly used incontrol arm bushings because of its long-lasting durability and reduced noise in harsh automotive environments. Polyurethane inserts outperformsolid-metal designs in terms of wear resistance and service life.
Rubber bushings are more susceptible to corrosion and wear, especially in salt-spray or high-humidity environments. They are typically used asstock replacements for worn-out rubber bushings but may require more frequent replacement due to material fatigue and environmental degradation.
Note: The actual service life depends on the application (e.g., off-road vs street use), driving conditions, and installation quality. Polyurethane bushings are generally recommended for performance upgrades and harsh driving environments.