Examples of interference fits are the fitment of a wheel on an axle, the fitment of a vibration damper on the crankshaft, etc
Interference fits can be done using methods such as by the application of huge amounts of force by hydraulic means, by heating the components such that it expands and allows the smaller part to enter.
Cooling the smaller part with liquid nitrogen or solid carbondioxide is also one method. The part contract which makes it to fit the other component.
Inteference fits provide excellent grip and are very reliable.