The suspension system is an important assembly in modern cars and has a great impact on the car’s driving smoothness and handling stability. The control arm (also called the swing arm) serves as the guide and force transmission element of the automobile suspension system. It transmits various forces acting on the wheels to the body while ensuring that the wheels move according to a certain trajectory. The control arms elastically connect the wheels and the body through ball joints or bushings.

According to different structures and working principles, automobile steering gears can indeed be classified into three main types: rack and pinion steering gear, worm crank pin steering gear and recirculating ball steering gear.

The clutch is installed between the engine and the transmission. It is a component in the transmission system that is directly connected to the engine. It is responsible for engaging and cutting off the power transmission between the engine and the transmission.The basic requirements for a clutch are: the active part and the driven part can be temporarily separated, and can be gradually connected, and relative slip may occur during the transmission process.

The automobile water pump is an important component in the engine cooling system. It usually consists of a pump body, impeller, bearings, sealing rings and other components. Among them, the pump body is the main structure of the water pump, the impeller is responsible for driving the flow of coolant, the bearing is used to support the water pump rotor and prevent vibration, and the sealing ring is used to prevent the water pump from leaking.