How to find the maximum rpm of the solid shaft that has a ring mounted on it?

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SUMMARY

The discussion focuses on determining the maximum RPM of a solid shaft with a ring mounted via an interference fit of 0.002 inches. It specifically addresses concerns about whether this fit will remain secure at 7000 RPM and 400 degrees Celsius. The consensus indicates that angular velocity does not affect the collar's retention, but differential thermal expansion between materials may influence the fit's adequacy. Understanding these factors is crucial for ensuring the integrity of the assembly under operational conditions.

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  • Familiarity with RPM calculations and their implications on mechanical assemblies
  • Basic principles of material science, particularly regarding temperature effects
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Mechanical engineers, materials scientists, and anyone involved in designing or analyzing rotating machinery with interference fits.

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Hello,

I have to find the maximum rpm of the shaft that has ring mounted on the shaft with interference fit of 0.002". I want to know at what rpm the ring will come loose from the shaft?

and

If I run the shaft at 7000rpm at 400 degree Celsius, is the interference fit of 002" enough for the ring to hold on to the shaft? How can I find out if it is adequate or not?

Any suggestions will be appreciated.
 
Engineering news on Phys.org
Angular velocity will have no bearing on whether the collar will stay on the shaft. Differential thermal expansion could play a part though, if the two parts are made of different materials.
 

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