Electrically driven power steering apparatus

摘要

Impact resistance in electrically-driven power steering which includes a ball nut 29 mounted on a bearing 25 and linearly driving a steering rack, includes a retaining member 31 for the bearing, screwed on the outside of the nut and positively held against rotation relative to the ball nut. This can be by caulking of a flange 31b engaging formations on the ball nut or by a separate member fitted in aligned bores of the retaining member and ball nut (Fig. 5).