setscrew
Học thuậtThân thiện
Definition
- Noun:
- A type of screw, often without a distinct head, designed to secure an object by applying pressure. Its primary function is to prevent movement or slippage between parts, such as a wheel on a shaft.
- A screw used to regulate or adjust the tension of a spring within a mechanism.
Usage
- As a noun (countable): A setscrew is a specific fastener used in mechanical assemblies. It is tightened to lock components in place or to make precise adjustments.
- The gear was loose, so I tightened the setscrew in its hub to secure it to the axle.
- To increase the pressure, turn the setscrew clockwise to compress the spring further.
Advanced Usage
- Engineering Context: In technical manuals, a setscrew is specified by its thread type, size, and point style (e.g., cup point, flat point, dog point) which determines its holding power and application.
- Use a cup-point setscrew for maximum grip on the shaft.
- As a Verb (less common, technical): The act of securing or adjusting with such a screw.
- After aligning the pulley, setscrew it firmly in place.
Variants and Related Words
- Grub Screw (chiefly British English): A synonym for a headless setscrew.
- Locking Screw: A general term for any screw used to prevent movement, which may include a setscrew.
- Adjusting Screw: A general term for a screw used for calibration or tension adjustment.
Synonyms
- Fastening screw, locking screw, grub screw, adjustment screw.
Related Phrases
- To secure with a setscrew: The standard phrase describing its primary action.
- The coupling is secured with a setscrew to prevent rotation.
- Setscrew point: Refers to the shaped end of the screw that contacts the shaft.
- A damaged setscrew point can mar the shaft and reduce holding strength.
Noun
- a screw (often without a head) that fits into the boss or hub of a wheel or cam etc. and prevents motion of the part relative to the shaft on which it is mounted
- a screw that is used to adjust the tension on a spring