Patent ID: 6435757
Filing Date: 2002-08-20
Classification: B60G,F16F,Y10T

Abstract:
A mechanical coupling for elastic axial and radial constraint with torsional freedom, especially for elastic pivots and suspensions and the like, comprisinga composite tubular member made of metal and elastomer (11; 21) that exhibits high axial and radial rigidity and the ability to absorb vibrations induced by the mechanical system in which it is fitted and to compensate for manufacturing tolerances in that system, a tubular insert (15; 25) made of nonwear plastic material with a low coefficient of friction which is coaxial and integral, in the form of a fixed inner sleeve, with said composite tubular member (11; 21) and a rotating metallic component (16; 26) fitted coaxially with respect to said tubular insert (15; 25) which engages with said rotating metallic component to provide the torsional freedom, in which the composite tubular member (11; 21) is made up of two coaxial metal sleeves, between which there is bonded a layer of elastomeric material (14; 24) which, in effect makes a single rubber bush co-operating with opposite mechanical axial stops (15.1, 18; 25.1, 28), wherein said tubular insert (15; 25) is flanged at one axial end (15.1; 25.1), bringing it back against the whole layer of elastomeric material (14; 24), in order to provide one of the axial stops (15.1; 25.1) and to ensure a structural shifting control, so that axial forces can be applied in both axial directions.