| 摘要 |
A tandem suspension assembly bushing for heavy duty trucks which includes a pair of parallel equalizing beams, a resilient support at each end of the beams, and end brackets connecting each support to a pair of spaced, parallel cross axles. A beam center bushing is located at the midportion of each equalizing beam to connect a spring saddle or frame bracket to each equalizing beam. Each beam center bushing comprises inner and outer sleeves and a tubular, cylindrical, elastomeric insert is positioned between the sleeves. To prevent relative movement between the insert surfaces and the sleeves, particularly in situations where there exists conical twisting between the inner and outer sleeves, the insert is adhesively attached to the sleeves and the elastomeric insert is placed in a state of compression by deforming the outer and/or inner sleeve to radially compress the wall of the insert. Alternatively, the insert is post bonded to the inner and outer sleeve without radial deformation of the sleeves. |
