ゆうせいはぐるまそうち 遊星歯車装置 LinksSentence search for 遊星歯車装置Sentence search for ゆうせいはぐるまそうちKanji details for 遊, 星, 歯, 車, 装 and 置Edit in JMdict Noun1. planetary gear; epicyclic gear Discussions Log in to talk about this word.