upper control arm

Control arm bushings are made of soft materials such as rubber and various types of polymers. Their job is to provide a cushion between two metal parts, reduce road harshness, dampen noise and control vibration.

Upper control arms are an important component of a vehicle's suspension system that helps control the wheel movement and ensure a smooth ride. Over time, the upper control arms may wear out due to several factors such as wear and tear, corrosion, or damage from road debris.

Ball Joint is a part that connects the steering knuckle and the control arm, and plays a lubricating and supporting role in order to successfully complete the wheel suspension and steering functions of the car.

Suspension bushing can reduce the impact and vibration transmitted to the body; At the same time to ensure the vehicle handling stability, ensure the suspension of the elastic kinematic characteristics; There is only one kind of rubber bushing, and its stiffness should be compromised between operating stability and smoothness;

A control arm connects the wheel hub and steering knuckle to the frame of the vehicle. They are typically equipped with bushings on the frame side of the vehicle and a ball joint on the wheel side of the vehicle that allow flex and controlled movement according to road conditions and steering input from the driver.

The Control arm, as the guiding and force transmitting element of the automobile suspension system, transmits various forces acting on the wheel to the body, while ensuring that the wheel moves according to a certain trajectory. The Control arm connects the wheel to the body flexibly by means of ball hinges or bushings. The Control arm should have sufficient stiffness, strength and service life。

1. Functional characteristics of multi-link independent suspension: multi-link suspension can not only ensure a certain degree of comfort, but also make the wheel and the ground as vertical as possible and reduce the tilt of the body as much as possible due to the large number of connecting rods. It is possible to maintain the ground adhesion of the tire. Its handling performance and double fork arm suspension are closely matched. Because of ample space, and pay attention to comfortable performance and control stability, most high-gear cars use multi-link suspension. It can be said that multi-link suspension is the best gear for high-gear cars. 2. The material characteristics of multi-link independent suspension, multi-link suspension structure is relatively complex, the material cost, research and development experiment cost and manufacturing cost are much higher than other types of suspension, and its space is large, small and medium cars for cost and space considerations rarely use this suspension; 3. the role of multi-link independent suspension: as the name suggests, multi-link suspension is composed of three or more connecting rod, and can provide multiple directions of control, so that the tire has a more reliable driving track of the suspension structure. However, nowadays, because the three-link structure can no longer meet people's higher pursuit of chassis control performance, only the more accurate structure, more accurate positioning of the four-link and five-link suspension can be called the real multi-link type, the two suspension structures are usually applied to the front wheel and the rear wheel respectively. Take the five-link suspension commonly used in the rear wheel as an example. The five connecting rods refer to the main control arm, the front positioning arm, the rear positioning arm, the upper arm and the lower arm respectively. Among them, the main control arm can play the role of adjusting the front bundle of the rear wheel, so as to improve the stability of the vehicle and effectively reduce the friction of the tire.

1. It can comprehensively improve the smoothness of the car ride, thus enhancing the driver's sense of smoothness and making the driver safer when driving; 2.It can effectively reduce the vibration of the body, and absorb some noise of the suspension system; 3.It can solve the spring weakness problem, the body will be raised by 0.2 to 0.3 cm, appropriate to improve the body.

Suspension Bushing Light weight, reduce the impact of the body, and improve the ground adhesion of the wheel; Soft spring with small stiffness can be used to improve the comfort of the car; It can reduce the position of the engine and the center of gravity of the vehicle, thus improving the driving stability of the vehicle; The left and right wheels beat alone, irrelevant, can reduce the tilt and vibration of the body. However, the independent suspension system has the disadvantages of complex structure, high cost and inconvenient maintenance.