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This form calculates size limit changes upon corresponding change in temperature. It assumes the housing change temperatures uniformly and therefore the ID also expands with increasing temperature. The ID could actually decrease if the heating occurs locally around the hole.

D_{f}=\sqrt{D^2_{0}+D^2_{0}2\alpha(T_{f}-T_{0})}

d_{f}=\sqrt{d^2_{0}+d^2_{0}2\alpha(T_{f}-T_{0})}

Thermal Expansion Coefficients
303 SS9.6e-610206.5e-6356 AL12.5e-6PTFE79.6e-6
304 SS9.6e-6414013.7e-62014 AL13.1e-6Delrin®4.5e-5
316 SS8.8e-6434013.6e-65052 AL13.2e-6Ertalyte®4.5e-5
347 SS9.2e-6H1311.5e-66061 AL13.5e-6Delrin AF5.2e-5

Shaft upper limit diameter (Dupper): inch
Shaft lower limit diameter (Dlower): inch
Ambient Temperature (T0): °F, Final Temperature (Tf): °F
Shaft Thermal Expansion (\alpha): 1/°F

Hole upper limit diameter (dupper): inch
Hole lower limit diameter (dlower): inch
Ambient Temperature (T0): °F, Final Temperature (Tf): °F
Hole Thermal Expansion (\alpha): 1/°F

   
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Copyright © 2015 Estiven R. Sierra