Jisho

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Noun
1. idle pulley
Wikipedia definition
2. Idler-wheelAn idler-wheel drive is a system used to transmit the rotation of the main shaft of a motor to another rotating device, for example the platter of a record-reproducing turntable or the crankshaft-to-camshaft gear train of an automobile.
Read “Idler-wheel” on English Wikipedia
Read “遊び車” on Japanese Wikipedia
Read “Idler-wheel” on DBpedia

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