遊星歯車装置 ゆうせいはぐるまそうち Meanings Noun planetary gear; epicyclic gear Kanji 遊 play. Read as ユウ. 星 star. Read as セイ. 歯 tooth 車 car. Read as くるま. 装 equip. Read as ソウ. 置 put. Read as チ. Jinuma: Japanese Dictionary · Word lists