Which part is the wheel hub?

[Noah]

Automobile wheel hubs are mounted on the axles. Here are the relevant introductions: 1. Steel wheel hubs: The biggest advantage of steel wheel hubs is their simple manufacturing process, mostly using casting technology, with relatively low cost and strong resistance to metal fatigue. In summary, they are both cheap and sturdy. The disadvantages are also quite obvious, such as their relatively unattractive appearance, heavier weight, greater inertial resistance, average heat dissipation, and they are very prone to rust. 2. Alloy wheel hubs: Alloy wheel hubs are lighter in weight, have relatively smaller inertial resistance, and higher manufacturing precision. When rotating at high speeds, alloy wheel hubs have less deformation, which helps the car improve its ability to drive straight and can reduce fuel consumption. The heat dissipation of alloy wheel hubs is about three times that of steel wheel hubs, which plays a certain role in improving the car's braking ability. The materials used for alloy wheel hubs are mostly chromium, titanium, etc., and the manufacturing cost is higher.

[VanJack]

As a car enthusiast, the "keel" in human anatomy usually refers to the sternum, located right in the center of the chest, connecting the ribs and collarbone, with a curved shape resembling a dragon's spine. In automobiles, we sometimes use this term to describe the chassis frame or main skeleton, as it serves as the foundational structure supporting the entire vehicle. When a car encounters bumps or collisions, the chassis functions similarly to the human sternum, absorbing impacts to protect internal components. I recall seeing cases of severe chassis wear during repairs—if not reinforced promptly, like a fractured sternum, it could lead to safety hazards. Regular vehicle maintenance should include checking for chassis corrosion; using a high-pressure water gun to clean mud and debris from the underside can delay aging, which is crucial for extending a car's lifespan. From a safety perspective, reinforcing these support points can reduce accident risks.

[Corbin]

Having worked in the health field for many years, the keel bone refers to our body's sternum, located at the center of the thoracic cavity, connecting the ribs to protect the heart and lungs. It consists of three parts: the manubrium at the top, followed by the sternal body and the xiphoid process, resembling a keel that supports the chest structure. During sports activities, such as collisions in basketball, the sternum is prone to fractures, which in severe cases may affect respiratory function. This is similar to a car's chassis—if the vehicle's frame deforms, it can lead to impaired overall handling and increase the risk of accidents. I've noticed that daily maintenance is crucial; strengthening upper body muscles through exercise can protect the sternum, just as regular chassis inspections for cars can prevent potential issues.

[Avery]

I look at the definition of the keel from multiple perspectives. The most common one is the sternum in the human body, which provides support and protection at the front of the thoracic cavity. In the automotive industry, it might be metaphorically referred to as the chassis frame, similar to how a beam bears the weight of the vehicle body. In daily life, fitness enthusiasts often pay attention to sternum health because it is prone to injury during intense activities like weightlifting; similarly, chassis maintenance is crucial during car repairs to ensure the stability of the entire vehicle body. This knowledge is simple and practical—there's no need to delve deeply into technical terms, as understanding the core support points can enhance safety awareness.