The Microwave Trick? It's the easy way to heat bearings!

The only advantage in using a microwave is speed. Uneven heating may cause distortion or other damage. Slow even heating in an oven is the way to go if you paid an arm and a leg for precision bearings. Not a fan of the arcing either, it has left permanent burn marks in nearby plastics (don't ask). In a non critical application where time is a factor, hmmm maybe...

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