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Post by Beerwiser on Apr 2, 2022 12:09:03 GMT -6
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Post by meskie on Apr 2, 2022 12:33:39 GMT -6
Never used one of those but I’ve been looking at them for a while.
Have used an induction heater for bearings before when assembling gear box’s or diffs.
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Post by OptimallyDismal on Apr 2, 2022 12:47:46 GMT -6
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Post by kenmb on Apr 4, 2022 9:15:46 GMT -6
Looks like a nice gadgrt to have. I hate using the torch for anything. It's my last tool to grab for anything because I am a total hack with it. So this would cover about 70% of the using I have for the torch. Our shop had those bearing heaters and I remember using it for some bearing to put together a automotive differential. Worked great. But this hand held unit has a lot more applications.
I do note he talks about watching for smoke. Our shop had wax crayons beside the heater with different melting points. So if you had a general idea of how hot you needed a particular bearing before damage was possible, then you took the appropriate crayon and kept checking bearing until crayon started to melt. But I suppose that was old school and now IR guns do it for cheap. Although shinny surface and IR don't work well together so perhaps the old school wax still has a use.
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Post by OptimallyDismal on Apr 4, 2022 9:58:56 GMT -6
You have to be careful with the IR guns on a shiny surface, you can get inaccurate readings!
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Post by kenmb on Apr 5, 2022 10:38:39 GMT -6
That's right Opt. The word to look up is emissivity. A shiny surface will look really hot when light reflects off it. So a bearing is a good example. You can use IR in the dark in such a situation but even your body heat will reflect so have to watch that. Video IR shows it well.
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