Shrink Fit Temperature Calculator

Calculate heating/cooling temperatures required for shrink fit assembly of interference fit components.

Required interference (shaft OD - hole ID).
mm
Nominal fit diameter.
mm
Hub thermal expansion coefficient. Steel: 12e-6/°C.
×10⁻⁶/°C
Shaft thermal expansion coefficient.
×10⁻⁶/°C
Room temperature.
°C
Extra clearance for easy assembly. Typically 0.05-0.1 mm.
mm

Results

Hub Heating Required-°C
Hub Target Temperature-°C
Shaft Cooling Required-°C
Shaft Target Temperature-°C
References: Shigley's — Shrink Fits; ISO 286