| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric power steering device capable of effectively suppressing the vibration transmission from a bearing to a housing at low cost. SOLUTION: An annular vibration damping member 50 consisting of a vibration damping alloy is interposed between (an outer ring 30b of) a bearing 30 and an axial end face 45 of a fitting recess 43, and between the bearing 30 and a fastening face 46 of a fastening member 44. The vibration damping member 50 consists of a vibration damping alloy of twin crystal type containing, by atom, 20±5% Cu, 5±3% Ni, and 2±1% Fe as the basic composition with Mu as a base. COPYRIGHT: (C)2007,JPO&INPIT |
