Elastomeric bushing and method of manufacturing the same...

F - Mech Eng,Light,Heat,Weapons – 16 – C

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18/40, 308/47

F16C 33/20 (2006.01) B60G 21/055 (2006.01) F16C 27/06 (2006.01)

Patent

CA 2009639

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 re- ceive the suspension link therethrough. The bore in- cludes 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 re- cessed surface portions. Preferably, the projected sur- face 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 sub- stantially right angles to define therebetween the re- cessed 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 meth- od of manufacturing the suspension bushing is disclosed.

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