Maximum torque can be transmitted in a Shrink Fit

[arranot]

Hello,
At work we perform a hooping ring on a shaft. The ring and the axis are of steel. Outside diameter of ring = 580mm and inner diameter of the ring or outside diameter of shaft = 470mm. And the interference is 0.65 mm. How do you calculate maximum torque can be transmitted?
Thanks

 

[desertfox]

Hi arranot

Look at this post the answer is there:
thread404-266050


desertfox

 

[TheGopher]

http://www.tribology-abc.com/calculators/e6_2.htm

or

http://www.engineersedge.com/calculators/machine-design/press-fit/press-fit-calculator.htm

These are usually simplifications of Lame's equation considering plastic deformation.

You must also consider the burst stresses and deformation consequences (ie if an internal (female) thread for a flange bolt is going to exist on an internal diameter of the shaft).

A lot of this is best done in FEA to confirm the calculator results.

 

[GregLocock]

Pretty gruesome FEA model to validate some results in which the main unknown is just a guess!

Cheers

Greg Locock


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