Schedule 2 1:15 PM - 1:30 PM [S112-02] Relationship between Material of The Rolling Element and Torque in The Small Ball Bearing 〇Tomoya Hotta1, Tasuku Matsubara1, Shoji Noguchi2 (1. 関東学院大学、2. 東京理科大学) Keywords:玉軸受、セラミック、回転トルク