A roller or wheel in a machine that guides or supports a moving part without contributing power.
The belt runs smoothly over the idler to reduce friction.
Check the idler pulley for wear and tear to maintain belt tension.
Frequently Asked Questions
The phonetic transcription of "idler" is /ˈaɪdlər/ in British English and /ˈaɪdlər/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "idler": loafer, layabout, slacker.
Example usage of "idler": "He is an idler and doesn't like to work at all.". More examples on the page.