US Patent 7748689 Radially flexible bushing

The invention provides for a radially flexible bushing, comprising an outer annular element, an inner rigid element surrounded by the outer element, an elastomer body, which adherently attaches the inner rigid element and the outer element. The elastomer body comprises spaced-apart arms extending radially from the inner rigid element to the outer element. It further comprises at least one radial stop for limiting the radial displacement of the inner rigid element. The radial stop, which is positioned on the outer element between the arms, comprises an arch having extremities joined to the outer element and a top oriented towards the rigid element. The arch defines together with the outer element a tubular cavity.