Gratis tekniskt verktyg #054
Kalkylator för termisk expansion i lagerarrangemang
Calculate separate uniform axial thermal changes of shaft and housing and their signed difference. Enter actual lengths, mean CTE values and temperature changes.
δ = L × α × ΔTSigned Heating/CoolingNo Automatic Bearing Selection
Resultat
Axelns axiella expansion δ_shaft
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Husets axiella expansion δ_housing
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Differentialutvidgning
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Termisk expansionsformel
- L — effective initial span (mm)
- α — mean linear CTE over the stated interval (μm/(m·K), numerically ×10⁻⁶/K)
- ΔT — signed temperature change from the reference state (K or °C difference)
CTE input
CTE is material-grade and temperature dependent. Obtain a mean value over the actual interval from controlled material data rather than choosing a broad material-family label.
Styrande/frigående lagerarrangemang
ℹ️ A locating/non-locating support can accommodate axial displacement from relative shaft/housing thermal growth, but required travel and bearing type must be selected from the complete arrangement loads, fits, tolerances and manufacturer data.
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