Chevrolet Equinox Rear Control Arm
About Rear Control Arm
Alternatively, a vehicle's control arm is also known as the A-arm, it's basically a hinged suspension link that carries the wheel between the chassis and the upright / hub suspension. A control arm's frame (inboard) is mounted via a single pivot, which is normally a rubber bushing. This allows it to control the outboard end position in a single degree of freedom, while at the same time maintaining the radial distance from the inside mount. Even though the one bushing can not move freely does not stop the arm from moving back and forth, a separate connexion or radius rod constraints this motion. It is not the same in the wishbone structure; wishbones are triangular and have two widely spaced inboard bearings. Such bearings prevent the wishbone's outboard end from moving back and forth, thus restricting two degrees of freedom, and without requiring more connexions. The majority of the arms of control form the lower connexion of a suspension. They're used as the upper link in a few designs, usually with a lower wishbone. The upper arm is fastened with the extra radius.
What is the purpose of Rear Control Arm?
The purpose of the control arm is to ensure that when passing bumpy roads the vehicle doesn't experience too much movement. The control arm connects the hub wheel and knuckle steering to the vehicle frame. The control arm bushings play an integral role in ensuring comfort and smooth handling whilst driving. They do this by acting as a cushion to the suspension system that then controls the noise, thus providing a smoother, softer ride over bumps and even sharp turns.
How Rear Control Arm Works?
The control arm works in a highly mechanical way. It is connected to the steering knuckle via a ball joint which is attached to the wheel via a hub and bearing assembly on one end. The other end is fastened to the frame / body of the vehicle. Whenever the vehicle hits the bump, the control arm begins the job by pivoting with the wheel up and down and allowing the vehicle's body to stabilise. The control has one or a pair of bushings on the frame / body side which allows it to pivot in this manner.
Where is Rear Control Arm Located?
The control arm connects the hub wheel and knuckle steering to the vehicle frame. Fitted with bushings on the vehicle's frame side, they even have a ball joint on the vehicle's wheel side. This assists in both flex and smooth movement as per road conditions, and driver feedback steering.