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lead screw

American  
[leed] / lid /

noun

  1. (on a lathe) a rotating horizontal screw for moving the tool carriage along the work at a constant rate.


lead screw British  
/ liːd /

noun

  1. a threaded rod that drives the tool carriage in a lathe when screw cutting, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Its lead screw, liberated from the child’s spinning top that inspired its designer, still works, sending the basket merrily whirring in its plastic bowl.

From Slate • Jun. 20, 2022

WHY: The incline lead screw can shear off, causing the foot pedals to drop unexpectedly, resulting in a fall hazard to the user.

From Seattle Times • Mar. 30, 2018

Hence it is better to use one end of the lead screw for general work, and to reverse it and use the other end only for screws requiring to be of very correct pitch.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

Suppose now that the pitch of the lead screw is 4 per inch and we want to cut 11⁄2 per inch.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

Of these, b and c are simply intermediate wheels, the respective diameters of which have no effect upon the revolutions of the lead screw, except that they convey the motion to d.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

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