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Most control arms form the lower link of a suspension. Control arms play a crucial role in the suspension system of a vehicle. They help to keep the wheels aligned and maintain proper tire contact with the road, which is essential for safety and stability. [1] The inboard (chassis) end of a control arm is attached by a single pivot, usually a ...
A single wishbone or A-arm can also be used in various other suspension types, such as variations of the MacPherson strut. The upper arm is usually shorter to induce negative camber as the suspension jounces (rises), and often this arrangement is titled an "SLA" or "short, long arms" suspension. When the vehicle is in a turn, body roll results ...
The upper links (orange) and the lower links (yellow) work in tandem to control the pitch, yaw and the fore and aft movement (surge). The panhard rod (green) controls the left and right movement (sway). While the springs and dampers (not shown) control the up and down movement (heave) and the roll is controlled by the sway bar (also not shown).
The upper wishbones though were, once again in the style of the Chapman strut, using the driveshafts themselves and a front radius rod. This is similar to the Jaguar independent rear suspension , which also uses the driveshafts as an upper control arm .
In the attached photograph of a double-wishbone suspension, the knuckle is shown attached to the upper control arm at the top and the lower control arm at the bottom. The wheel assembly is shown attached to the knuckle at its center point.
Keeping the upper arms still, bend at the elbows to slowly lower the weights until they reach the area behind your head. Then, extend your arms until the dumbbells are straight above your chest again.