Elastomeric bushing and method of manufacturing the same

摘要

A bushing for rotatably supporting a bar-shaped suspension link comprises an elastomeric body having a central axis and including an axial bore adapted to receive the suspension link therethrough. The bore includes a circumferential surface having projected surface portions and recessed surface portions, the projected surface portions projecting radially inwardly to provide radial clearance between the suspension link and the recessed surface portions. Preferably, the projected surface portions include a plurality of first and second ridges projecting radially inwardly. The first ridges are substantially parallel to the central axis of the elastomeric body and intersect the second ridges at substantially right angles to define therebetween the recessed surface portions. The preferred embodiment of the bushing of this invention further comprises a double-knit fabric liner covering the circumferential surface of the bore of the body. The fabric liner preferably is woven from fibers of polyester and polytetrafluoroethylene and conforms to the contour of the projected and recessed surface portions of the axial bore. In addition, a method of manufacturing the suspension bushing is disclosed.