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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

Then multiply by the pitch of the lead screw.

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

To preserve the nut from wear, it should be made as long as convenient, as, say, five or six times the diameter of the lead screw; it is usually made, however, three or four diameters.

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

The work having made its fourth turn, the lead screw will have made 22⁄5 turns, and the nut will not be in position to lock fairly.

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

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