| 摘要 |
A wheel body for carriages or other vehicles which are used, inter alia, in roller-coasters and other installations of amusement parks, the wheel body being made of a casting alloy which, expressed in percentages by weight, comprises the following elements: Al>94.000 Mg>4.500 Si<0.100 Cu<0.015 Fe<0.100 Mn<0.007 Ti<0.025 Zn<0.050 Sn<0.010. A method for fabricating the wheel body includes fitting the wheel body with a running tread of plastic such as polyurethane.
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