I have a bearing that is fixed into its housing by means of an interference fit (to test the effects of having a bearing that has become stuck due to build up of contaminants). I am using a bearing of ID 15.92mm ± 0.005 made of High lead Tin Bronze Alloy with a thermal coefficient of expansion equal to 18.5x10-6 1/°C within a housing with a hole of 15.88mm ± 0.005 made of Grey Cast Iron with a thermal coefficient of expansion equal to 11.7x10-6 1/°C. How do I calculate what the inside diameter of the housing will be when the part is running (delatT = 280°C). I have tried using the linear thermal expansion equation but due to the complex geometry of the housing I'm not really sure what OD to use for this method?(adsbygoogle = window.adsbygoogle || []).push({});

Any help would be greatly appreciated.

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# Thermal expansion of an interference fit

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