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Shrink fitting

Shrink fitting

Shrink fitting is an assembly method that uses heat to temporarily expand one component, allowing it to fit over another before cooling to form a high-strength, interference-based mechanical joint. This technique is widely used in manufacturing and maintenance for coupling gears, rotors, bearings, and housings.

Induction heating is ideal for shrink fitting because it delivers rapid, localized, and controllable heat without physical contact. Unlike traditional ovens or open flame methods, induction heats only the target area, reducing the risk of overheating adjacent parts and improving process safety. The fast heating cycles shorten production time and minimize thermal stress on components.

When paired with CEIA Controllers, CEIA Induction Heating Systems offer repeatable performance, constant power output, and advanced temperature monitoring. Operators can precisely control the heating profile to ensure uniform expansion, which leads to accurate fits and reliable assembly. These systems are energy efficient, easy to integrate, and support high-volume or single-piece operations, making them especially valuable in automotive, aerospace, and electric motor production industries.

Shrink fitting

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