Simple Press-Fit Calculator
This gives you a way to test the impact of changing the amount of interference on the characteristics of a simple tube-in-tube press-fit connection. It allows for different materials to be evaluated, and alerts you to situations where you may be exceeding the Yield Strength, or Tensile Strength of the components.
Machine Design Juvinall
Scahum's Machine Design
19 Feb 2008
Full download access to any calculation is available to users with a paid or awarded subscription (XLC Pro).
Subscriptions are free to contributors to the site, alternatively they can be purchased.
Click here for information on subscriptions.
Using the upper limit rs gives the highest contact pressure but using the lower limit of rh reduces by just 0.9%. Since interferences are always going to be small value maybe it does not matter too much what value is used?