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What is the brake with the same braking efficiency in both forward and reverse?

1 Answers

VonRiver

07/29/25 10:27pm

The brake with the same braking efficiency in both forward and reverse is the leading-trailing shoe brake. The characteristic of the leading-trailing shoe brake is that each of the two brake shoes has a pivot point. One shoe, when opened by the wheel cylinder's actuating force, rotates in the same direction as the brake drum and is called the leading shoe. The other shoe rotates in the opposite direction of the brake drum and is called the trailing shoe. Under the action of friction, the leading shoe has greater normal pressure between the shoe and the drum, resulting in stronger braking. The trailing shoe, under the action of friction, has less normal pressure between the shoe and the drum, resulting in weaker braking. It is important to note that the leading and trailing shoes cannot be interchanged during installation. The leading-trailing shoe brake consists of the front brake shoe, rear brake shoe, brake backing plate, wheel cylinder, brake shoe limiting device, and brake shoe clearance adjustment device, among others.

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