Induction shrink fitting refers to the use of induction heating to pre-heat metal components between 150 °C (302 °F) and 300 °C (572 °F) thereby causing them to expand and allow for the insertion or removal of another component. Typically the lower temperature range is used on metals such as aluminum and higher temperatures are used on metals such as low/medium carbon steels.
There are a huge number of industries and applications which benefit from induction shrink fitting or removal. In practice, the methodology employed can vary from a simple manual approach where an operator assembles or disassembles the parts to fully automatic pneumatic and hydraulic press arrangements.
-Automotive starter rings onto flywheels
-Timing gears to crankshafts
-Motor stators into motor bodies
-Motor shafts into stators
-Removal and re-fitting of a gas turbine impeller
-Removal and re-fitting of hollow bolts in electrical generators
-Assembly of high precision roller bearings
-Shrink fitting of 2-stroke crankshafts for ship engines
