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Brake Shoe

A brake shoe is a component of a drum brake system used in automotive and other applications to slow down or stop the rotation of a wheel. It is a curved metal plate or block that is lined with friction material, typically made of durable materials like asbestos-free organic compounds, semi-metallic materials, or ceramic materials.

In a drum brake system, the brake shoe is mounted inside a brake drum, which is attached to the wheel. When the brake pedal is pressed, hydraulic pressure is applied to the wheel cylinder, causing the brake shoes to press against the inner surface of the brake drum. This frictional force generates resistance, which slows down or stops the rotation of the wheel, thereby decelerating the vehicle.

Brake shoes are typically designed as pairs, with one shoe for the leading edge and another for the trailing edge. The leading shoe is positioned towards the front of the vehicle’s rotation direction, while the trailing shoe is positioned at the rear. This arrangement helps to distribute the braking force evenly and improve the effectiveness of the braking system.

Over time, the friction material on the brake shoes wears down due to the intense heat and pressure generated during braking. When the friction material becomes too thin, it needs to be replaced to maintain the braking performance and ensure safe operation of the vehicle.

It’s important to note that with advancements in automotive technology, drum brakes are being replaced by disc brakes in many modern vehicles. Disc brakes offer better performance, cooling, and durability compared to drum brakes. However, drum brakes can still be found in some older vehicles, as well as in certain applications like parking brakes or heavy-duty vehicles.

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