Wort des Tages 31 August 2026

keyway

The recessed part of a keyed joint, in which the key resides.

Warum dieses Wort

A small feature, and the entire reason a shaft can turn a hub instead of spinning uselessly inside it.

In use

The pulley won't seat because somebody's burred the edge of the keyway, so give it a light dress with a file before you try again.

Written by our editors to show how the term is used, not a recorded quotation.

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