Car Drum Brake System
Introduction
The drum brake system is one of the two major types of braking systems used in cars, the other being the disc brake system. Drum brakes are typically used on the rear wheels of cars, while disc brakes are typically used on the front wheels. Drum brakes work by pressing a set of brake shoes against the inside of a rotating drum, which is connected to the wheel. Disc brakes work by pressing a set of brake pads against a rotating disc, which is also connected to the wheel.
Components of a Drum Brake System
The main components of a drum brake system include:
- Brake shoes
- Brake drum
- Wheel cylinder
- Brake lines
- Brake pedal
The brake shoes are made of a friction material, such as asbestos or ceramic. The brake drum is a metal cylinder that is connected to the wheel. The wheel cylinder is a hydraulic cylinder that is used to press the brake shoes against the brake drum. The brake lines are used to transmit hydraulic pressure from the brake pedal to the wheel cylinders. The brake pedal is used to apply pressure to the brake lines.
How a Drum Brake System Works
When the brake pedal is pressed, hydraulic pressure is sent through the brake lines to the wheel cylinders. The wheel cylinders then press the brake shoes against the brake drum. The friction between the brake shoes and the brake drum causes the wheel to slow down and stop.
Advantages of Drum Brakes
Drum brakes have several advantages over disc brakes, including:
- They are less expensive to manufacture.
- They are more resistant to wear and tear.
- They are less likely to fade under heavy braking.
Disadvantages of Drum Brakes
Drum brakes also have several disadvantages over disc brakes, including:
- They are less effective at dissipating heat.
- They are more likely to cause brake judder.
- They are more difficult to service.
Conclusion
Drum brakes are a reliable and cost-effective braking system that is still used on many cars today. However, disc brakes are becoming increasingly popular due to their superior performance and ease of maintenance.
