keyway

IPA/ˈkiː.weɪ/
IPA/ˈkiː.weɪ/

keyway — noun

  • keywaysingular
  • keywaysplural

1. a long, narrow slot cut into a shaft or wheel so that a small metal piece called

1.名詞C2
釋義

a long, narrow slot cut into a shaft or wheel so that a small metal piece called a key can sit inside it and lock the two parts together when they turn.

例句

Shirin used a milling machine to cut a keyway along the steel shaft.

cut a keyway along + shaft (typical workshop action)

The mechanic checked that the keyway in the pulley lined up with the slot on the motor shaft.

keyway in [wheel/pulley] + lined up with + slot on shaft

同義詞
  • key seat

    near-equivalent technical term, more common in American engineering texts

  • key slot

    informal alternative used by mechanics; less standard in engineering drawings

文法句型

a keyway in [machine part]

cut a keyway

用法筆記

Subject is usually a machine part with a rotating shaft (pulley, gear, fan blade, pump rotor). The matching metal piece that fits inside is itself called a 'key', so the two words almost always appear together.

常見錯誤

❌I lost the keyway to my house.
✅I lost the key to my house.
💡a 'keyway' is a slot inside a machine, not the metal object you carry around or put into a lock.