Motor driven throttle control device and method of mounting motor thereto

Screws (5) and a mounting flange (29) fixedly support one axial end portion of a motor casing (28) on a throttle body (1). A resilient O-ring (6) and a motor housing portion (24) resiliently support the other axial end portion of the motor casing on the throttle body with respect to the radial direction of a motor (4). An independent claim is also included for a motor mounting method.