An outer rotor motor includes a mounting seat portion provided inside a motor case, and a protruding portion protruding from the mounting seat portion. An inner stator has a stator opening portion formed centrally thereof, and a mounting portion is formed adjacent the stator opening portion. A vibration isolating member is interposed between the mounting seat portion and the mounting portion with the stator opening portion telescopically fitting over the protruding portion. The vibration isolating member includes a pair of foam rubber layers and a metal base material sandwiched between the pair of foam rubber layers. A bolt fastens the mounting seat portion and the mounting portion together while compressing the vibration isolating member.