The brake and axle are two very important components in the automotive braking system, and they have a close relationship with each other. Brakes are devices used to slow down or stop the movement of vehicles, while axles are structures that bear the weight of the vehicle and transmit power.

Firstly, the brake is tightly integrated with the wheel to achieve braking effect on the wheel. When the driver steps on the brake pedal, the brake generates friction, converting the movement of the wheels into heat energy, thereby slowing down or stopping the vehicle. Therefore, the performance of the brake directly affects the braking effect and safety of the vehicle.

Secondly, the relationship between the brake and the axle is that the brake transmits braking force through the axle. When the brake is activated, it applies braking force to the wheels, and the wheels transmit this force to the vehicle's chassis through the axle. This process is achieved through the connection between the wheels and the axle, while the axle transmits braking force to the entire chassis of the vehicle through the suspension system, thereby achieving braking of the vehicle.

In addition, the relationship between the brake and the axle is also reflected in their joint composition of the car braking system. The braking system is an important safety device for vehicles, consisting of brakes, brake oil circuits, brake pumps, brake hoses, brake pads, etc. The axle, as one of the components that carries the vehicle's load and transmits power, is also an indispensable part of the braking system. The brake is combined with the wheels to achieve braking, while the axle bears the weight of the vehicle and transmits power. The two work together to ensure normal braking and safe driving of the vehicle.

Overall, there is a close relationship between the brake and the axle, which together form an important component of the automotive braking system. They achieve braking and safe driving of vehicles through the transmission and conversion of braking force, and are one of the key components of car operation. Therefore, maintaining and upkeep the normal working condition of the brakes and axles is crucial for ensuring safe driving of the vehicle.