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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

If now we multiply both terms of this 8⁄17 by 4 we get 32⁄68, and all we have to do is to put on the lead screw a wheel having 68 teeth.

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

The construction of the bearings which carry the lead screw in the S. W. Putnam’s improved lathe is shown in Fig.

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

It is obviously preferable, then, to place the lead screw at the back, where the carriage and shears wear the least.

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

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