Shrink Fitting

Shrink fitting is a method of fitting components that use an interference fit, it does this using thermal contraction i.e. a component such as a bushing can be cooled using liquid nitrogen (LN2) which causes it to become smaller and easily fit into it’s housing until it becomes warm again and returns to it’s original size. This method is better than fitting the components using force or heat because it won’t damage the surfaces of the components.



At PSL in Dorset, UK we store up to 1400ltr of liquid nitrogen which can be used for shrink fitting parts, we also have a wide array of equipment capable of holding and lifting parts in freezing conditions meaning we are able to provide shrink fitting services for parts of all sizes and weights.