Worm gear for power steering system of vehicle, has ball that is positioned in recess of worm, and prism that is provided for pressing ball into recess

摘要

The worm gear has a worm (103) mounted on a shaft of the motor, and a worm wheel (104) engaged with the worm. A ball (108) is positioned in a recess (113) of the worm. A prism (102) is provided for pressing the ball into the recess. The recess is formed of conical shape or formed as a notch.