brake shoe
Học thuậtThân thiện
Definition
Noun: A component of a drum brake system. It is a curved metal block lined with friction material (the brake lining). When hydraulic pressure is applied, the brake shoe is forced outward against the inner surface of a rotating brake drum, creating friction to slow or stop the wheel's rotation.
Usage
The term "brake shoe" refers specifically to this single, distinct part within a braking assembly. It is used when discussing automotive repair, mechanical engineering, or vehicle maintenance.
Examples
- The mechanic inspected the worn brake shoes and recommended replacing them.
- A common symptom of failing brake shoes is a high-pitched squealing noise when braking.
- The hydraulic cylinder pushes the brake shoe against the drum to create the stopping force.
Advanced Usage
- Leading/Trailing Shoe: In some drum brake designs, one brake shoe is designated the "leading" shoe (which is dragged into the drum by rotation, creating a self-energizing effect) and the other the "trailing" shoe. Their wear patterns can differ.
- Primary/Secondary Shoe: Similar to leading/trailing, this terminology differentiates the two brake shoes in a dual-servo brake system based on their function and position.
Variants and Related Words
- Shoe: A common shorthand used by mechanics (e.g., "The shoes need replacing").
- Brake Pad: A related but distinct component used in disc brake systems. While both provide friction, a pad is a flat piece that clamps onto a rotor, whereas a shoe is curved and presses against a drum.
- Brake Lining: The friction material attached to the surface of the brake shoe.
- Brake Drum: The rotating, drum-shaped component against which the brake shoe acts.
Synonyms
- Brake Block: A less common but technically accurate synonym, especially in certain industrial or railway contexts.
Related Phrases
- To shoe a brake: An informal phrase meaning to install new brake shoes.
- Example: I need to shoe the brakes on the rear axle this weekend.
Noun
- a restraint provided when the brake linings are moved hydraulically against the brake drum to retard the wheel's rotation