Note: Shrink fit a motor shaft and roller
Objective:
To heat a roller assembly to shrink fit it with a motor shaft
End Product:
motor shaft
Equipment:
Ambrell EASYHEAT 2.4 kW, 150-400 kHz solid state induction power supply with a workhead and coil specifically designed for this application.
Materials:
aluminum
Temperature:
450 °F (232 °C)
Frequency:
222 kHz
Testing:
A three-turn helical coil was used to heat the roller assembly through to the ID bore without overheating the outside of the tube. The roller was heated for five minutes. Then the motor shaft was lowered into the roller and slipped into the hole without resistance. The roller was then turned back over with a slight tap and the shaft came back out before the part had sufficient time to cool which resulted in the shrink fit.
Benefits:
Rapid part heating that saves power and time
clean source of heat
The complete tube does not have to reach the desired temperature as it does when heating with an oven
Selectively heating a zone allows for a much quicker transfer of heat
Visit our Applications Lab to learn more about free applications testing.
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