Power steering device of electric motor type

摘要

A worm wheel is mounted to a steered shaft to rotate therewith. A brushless electric motor has an output shaft and is able to generate a power for assisting turning of the steered shaft when energized. A worm gear is coaxially connected to the output shaft of the motor to constitute a combined shaft structure. The worm gear is meshed with the worm wheel. Two bearings bear axially opposite end portions of the combined shaft structure respectively.