idle wheel

Noun

(engineering) A wheel placed between two others to transfer motion from one to the other without changing the direction.

Japanese Meaning

2つの他の車輪の間に配置され、一方の車輪からもう一方に運動を伝達する補助的な車輪。

The engineer inspected the idle wheel carefully before reassembling the gearbox.

技術者はギアボックスを再組み立てする前にアイドラー（中間車）を注意深く点検した。

Sense（1）

(engineering) A wheel placed between two others to transfer motion from one to the other without changing the direction.

idle wheels

（ plural ）