ELECTRIC POWER STEERING DEVICE

摘要

An electric motor (5) is provided with: a motor case (30) which is formed in a tube-like shape having one end open and which contains the rotation section of the motor; and a substantially circular plate-shaped flange member (31) which is joined to the motor case so as to close the opening at the one end of the motor case. The flange member is provided, at unequal intervals in the circumferential direction, with: two mounting flanges (31d, 31e) protruding outward and affixed to the motor mounting section (17) of a reduction gearbox (4); and a first contact flange (31c) protruding outward between the two mounting flanges and in contact with the motor mounting section.