Assembly of Shrink-Fits

Shrink-fits are assembled by heating them to temperatures where the expansion exceeds the interference. Required temperature heating can be calculated as

dt = δ / α d_i                               (1)

where

dt = temperature heating (^oC, ^oF)

δ = diametric interference (mm, in)

α = coefficient of linear expansion (m/m^oK, in/in^oF)

d_i = initial diameter of hole before expansion (mm, in)

Diametric interference can be calculated as

δ = dt α d_i                               (2)

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Citation

This page can be cited as

• Engineering ToolBox, (2005). Assembly of Shrink-Fits. [online] Available at: https://www.engineeringtoolbox.com/assembly-shrink-fits-d_951.html [Accessed Day Mo. Year].

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