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JJ & A Axles


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  • 3 years later...

If there is a solid rod and a hollow tube made of the same material and are the same diameter, the solid rod will be stronger.  A hollow tube that has the same mass as a solid rod will be stronger, but have a much greater diameter. Thus, a hollow tube can have a greater strength per mass.

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1 minute ago, trickedcarbine said:

I'm no metalurgist. But wouldn't the hole down the middle add some sort of torsional benefits? 

No, if size is the same, a solid part is always stronger than hollow.

https://www.engineeringtoolbox.com/torsion-shafts-d_947.html

 

In torsional, the center doesn't do much, but it still adds some strength. 

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10 minutes ago, ZillaFreak said:

No, if size is the same, a solid part is always stronger than hollow.

https://www.engineeringtoolbox.com/torsion-shafts-d_947.html

 

In torsional, the center doesn't do much, but it still adds some strength. 

 

I also understand the strength being stronger on a solid part, but sometimes a part that can handle some flex lives longer then a heavy solid part that would rather snap then twist. At least that's my minimal experience. 

 

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