Ambrell Induction Heating
Ambrell Induction Heating
heating a steel plate

Shrink Fitting a Magnetic Steel Gear

Jul 24, 2019 2:19:37 PM / by Brett Daly posted in Shrink Fitting, induction shrink fitting


A manufacturer of power generation equipment approached THE LAB at Ambrell with a shrink fitting application. They had been shrink fitting a magnetic steel gear with an oven, but that oven took over two hours to heat the gear to 550 °F (288 °C). Their hope was that induction could significantly reduce that time, which would increase their productivity and enable more throughput. They sent in their parts to Ambrell and took advantage of complimentary applications testing. 


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Using Induction Heating for Shrink Fitting

Feb 25, 2019 10:38:08 AM / by Brett Daly posted in Induction Heating, Shrink Fitting

Shrink fitting is a process where a size change after assembly, which can be achieved with induction heating, creates an interference fit. By heating or cooling one component prior to assembly and allowing it to return to the ambient temperature after assembly, the thermal expansion creates a joint. In fact, after the assembly cools, it generally cannot be separated without reheating the assembly to reverse the process. 

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Induction Heating a Gear for a Shrink Fitting Application [VIDEO]

Nov 20, 2018 9:17:24 AM / by Brett Daly posted in Shrink Fitting, application video



In the latest application video from THE LAB at Ambrell, a steel gear is heated to 400 °F (204 °C) for a shrink fitting application. An Ambrell EASYHEATTM 6 kW induction heating power supply is used. You'll see that temperature indicating paint -- which liquefies and turns clear when the target temperature is achieved -- is applied to two spots on the steel gear. 

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Application Insight: Induction Shrink Fitting an Aluminum Lens Tube for Optical Systems

Nov 23, 2015 3:15:00 PM / by Brett Daly posted in Shrink Fitting, induction shrink fitting

A client needed to heat an aluminum tube for a shrink fitting application. It is a component for an optical system. The client had been using an oven. They took advantage of complimentary applications testing and turned to Ambrell's applications team and their extensive experience to develop a solution.

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