CONTROL ARM

A control arm is a critical component in a vehicle’s suspension system, connecting the chassis to the wheel hub assembly. Its primary role is to regulate wheel movement, maintaining proper alignment and absorbing road shocks for stable handling. Typically made of high-strength steel or aluminum alloy, control arms balance durability and weight efficiency. They feature bushings at the chassis end to dampen vibrations and ball joints at the wheel end, allowing flexible rotation during steering and suspension articulation. By controlling vertical wheel motion while enabling horizontal pivoting, these arms ensure consistent tire contact with the road, enhancing traction and safety. Found in both front and rear suspensions of cars, trucks, and SUVs, their design varies by vehicle type—from simple A-arms in older models to multi-link configurations in modern vehicles. Proper maintenance of control arms, including inspecting for bushing wear or ball joint looseness, is vital to prevent handling issues and ensure a smooth ride.