Suspension control arm 31360630 31360633 Front suspension upper control arm for Volvo XC90 XC60

Product Description:

Upper control arms
OE NO.:  31360630 31360633

Applicable vehicle type: For Volvo

Common upper control arms in automotive suspension structures include single-arm and double-arm types (double wishbone suspension). Among these, the double wishbone structure is more complex but can better control wheel movement and improve handling performance.

Functions and Roles:

• Supporting the Wheel: The upper control arm supports the wheel, allowing it to move vertically within the suspension system along a predefined path.
• Guiding Suspension Movement: It controls the angular changes of the wheel, affecting the vehicle's maneuverability and driving stability.
• Absorbing Vibration: In conjunction with shock absorbers and springs, it helps to mitigate road impact, enhancing ride comfort.
• Maintaining Wheel Alignment: It ensures that the wheel alignment angles (such as toe, caster) remain within reasonable limits during movement, improving tire life and driving safety.

The joint of the upper arm (ball joint, bushing) may become loose, produce abnormal noise, or affect handling performance due to wear or aging. When abnormalities occur, timely inspection and replacement should be carried out to ensure driving safety.

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