Brake disc knowledge sharing-Brake disc performance optimization by Asiautos Auto Parts(CHINA CAR Aftermarket Parts Expert)

Ventilated Design

• What are ventilated disc brakes : Ventilated disc brakes are hollow in design and have fan blades inside. They accelerate air flow through rotation to achieve rapid heat dissipation. They perform well under high load and high temperature conditions and are commonly found in sports cars and racing cars. They usually use larger brake discs and have regular ventilation holes on the disc surface, which helps reduce thermal attenuation during braking and ensures brake sensitivity and durability. Although ventilated disc brakes are more expensive, their performance advantages cannot be ignored.

• Advantages : Excellent heat dissipation, reduced brake fade, suitable for high-performance cars and racing cars.

Structural Optimization of Ventilation Design

1. Ventilation discs often use complex geometric shapes and hole arrangements to optimize the air flow path. For example, some designs use serrated edges or specific arrangements of holes to reduce resistance and enhance airflow efficiency.

Weight reduction

Because the ventilated disc has a large number of holes or hollow structures inside, its overall weight is lighter than a solid disc, which helps reduce the vehicle's unsprung mass, thereby improving handling and fuel economy.

Improve braking stability

The ventilated disc design not only improves heat dissipation, but also improves stability during braking by reducing deformation caused by thermal expansion. This is especially important for high-performance vehicles, as they need to maintain reliable braking effect at high speeds and frequent braking.

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