driving wheel

(rail transport) On a steam locomotive, a powered wheel driven by the locomotive's pistons or turbine.

Japanese Meaning

（鉄道用語）蒸気機関車などにおいて、ピストンやタービンによって駆動される車輪。

The engineer inspected the driving wheel after noticing unusual vibrations during the run.

運転士は走行中に異常な振動に気づき、機関車の動輪を点検した。

Sense（1）

(rail transport) On a steam locomotive, a powered wheel driven by the locomotive's pistons or turbine.

driving wheels

（ plural ）