Power steering apparatus used for steering system of vehicle, has ball bearing portion that is provided with hollow spherical ball which is elastically deformable

摘要

The apparatus has a drive motor for generating a driving torque and a transmission unit for transmitting the torque on a rack portion (108). A ball bearing portion (102) is provided with a hollow spherical ball (103) which is elastically deformable. A ball circulating nut (107) is supported by the ball bearing portion.