| 摘要 |
A support arm for the car body of a railway vehicle has a hub provided with an annular resilient mounting on a bolster shaft which includes a bush for carrying radial loads and absorbing radial vibrations that is bonded to an outer housing forming the hub of the arm and is also bonded to an inner sleeve. The sleeve is supported by antifriction bearings on an inner housing which is adjustably secured to the shaft. The inner and outer housings have annular extensions of increased diameter to which a torsion bush of increased radial thickness is attached. The torsion bush is made of softer rubber than the radial bush and provides optimum performance in resisting torsion loads.
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