Rack Bush, and Rack and Pinion Type Steering Apparatus for Vehicle having The Same

摘要

PURPOSE: A rack bush and a steering device of a rack pinion type of a vehicle comprising the same are provided to reduce the abnormal abrasion of a rack bush by the smooth supporting of the load of the axial and vertical directions of a rack bar. CONSTITUTION: A rack bush(200) comprises a supporting part(210) and an elastic deformation part(220). The rack bush is connected to the inner side of a rack housing(137). A rack bar(140) is inserted into the inner circumferential surface and the rack bush linearly moves the rack bar. The outer circumferential surface of the supporting part is inserted into the rack housing. The inner circumferential surface of the supporting part is formed in order to be separated from the outer circumferential surface of the rack bar. The elastic deformation part is extended from both sides of the supporting toward the central axis of the rack bar. The elastic deformation part is formed as convex and concave surfaces and supports the rack bar.