Slotted Discs are high-performance brake discs with specific grooves (slotted lines) designed on their surface, which are mainly used to improve braking performance, heat dissipation and extend the service life of the brake system. The following are the details of slotted discs:

 

1. Structure and Design

Surface Features: Slotted discs have one or more straight or curved grooves on their surface, which are usually distributed radially.

 

Material: Usually made of high-strength cast iron, stainless steel or composite materials, some high-end products use carbon fiber or ceramic composite materials.

 

Slotted Shape: The shape of the groove can be straight, curved or wavy, depending on the manufacturer and purpose.

 

2. Working Principle

Removing Debris: The main function of the slotted disc is to remove the debris and dust generated when the brake pad contacts the brake disc, preventing it from accumulating on the contact surface, thereby maintaining braking efficiency.

 

Improving Contact: Slotted lines can break the air film (gas layer generated at high temperature) between the brake pad and the brake disc, ensuring full contact between the two and improving braking response.

 

Heat dissipation: The scoring design helps air flow, improves heat dissipation, and prevents the brake disc from overheating.

 

3. Advantages

Improved braking performance: The scoring design can provide more direct and stable braking force, especially when braking at high speed or frequently.

 

Anti-fading: Under high temperature conditions, the braking performance of the scoring brake disc is less faded, which is suitable for high-performance vehicles or intense driving.

 

Extended life: By removing debris and improving heat dissipation, scoring brake discs can reduce wear on brake pads and brake discs and extend service life.

 

Strong adaptability: Suitable for a variety of road conditions, especially in wet or dusty environments.

 

4. Disadvantages

Noise problem: The scoring design may cause additional noise (such as "hissing") when braking.

 

Higher cost: The manufacturing cost of scoring brake discs is higher than that of ordinary solid brake discs, and the price is relatively high.

 

Brake pad wear: Due to the presence of scoring, the brake pad may wear faster than when using ordinary brake discs.

 

5. Applicable scenarios

High-performance vehicles: such as sports cars, racing cars or modified cars, which require stronger braking performance and heat dissipation capabilities.

 

Frequent braking scenarios: such as mountain driving, track driving or trailer use.

 

Wet or dusty environment: The scoring design helps to drain water and remove debris, suitable for use in harsh environments.

 

6. Maintenance and precautions

Regular inspection: The grooves of the scoring brake disc may accumulate debris and need to be cleaned regularly to maintain optimal performance.

 

Brake pad matching: Use high-quality brake pads to reduce wear and noise.

 

Avoid excessive use: Frequent use under extreme conditions may cause scoring wear and affect performance.

 

7. Difference from perforated brake discs

Score brake discs: Mainly remove debris and improve contact through grooves, suitable for daily high-performance use.

 

Perforated brake discs: Dissipate heat and drain water through holes, suitable for humid environments, but may be prone to cracks under extreme conditions.

 

Score brake discs are a type of brake disc that takes into account both performance and practicality, especially for drivers who have high requirements for braking performance. When choosing, you need to make comprehensive considerations based on vehicle type, driving habits and usage environment.

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