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I tested the gauge with boiling water witch is 100°C. It was on the mark. Note: Use distilled water only If over 500 foot above some correction is need ti temperature. Dave

When someone says the motor is at 105 C. My question is “How did you calibrate the sensor?” Most motors will start to be damaged at 85 C and 105 C is about the limit of what they can take. I

With temperature gauge I can see I needs to run at full speed It low cost cost item to save from buying a $160.00 motor . 1) I first was think of using a time delay fuse.? The remember thd low speed

Thanks Johannes animal

Hi Mike I have not found my shop yet, it is here somewhere. Home depot is ok, however not for the most I am doing. Mostly I get my stuff from China. Johannes Lavoll. Mexico

The Guage is from Walmart it cost under $14.00 It is also on Amazon for about same price. My wife has free shipping on Walmart. Dave

That is a hot motor Thank you for photo mine did have a label. 120°C is 248°F Dave

A bit off topic but Johanes I'm wondering if you have supply houses where you can get drills & lathe bits in your p[art of the country . I have one that @ 50 miles from me in Reno & another in Carson

I am looking for temperature be for smoke. I can only go by what in print. I hope motor stays cool. The? ambient used is either 40°C or 45°C? plus 60°C for motor. It all for longer life. Dave

Here's a pic of the motor that goes on my mini lathe. Looks like it's rated class E, which is 120 C per a wikipedia article. Stan

You're drilling lots of these holes, so it would waste too much time to use a spotting drill, mill flats on the rod, and so on. Instead I would use a guide block, but different than the one in your

Those are not operating temperatures, they are MAXIMUM temperatures. You want to be as far away from them as possible. If your casing is 80 degrees then your armature is far hotter than that. You can

The idea of a spotting drill is they have an angle slightly bigger than your drill, so 120 or 140 degree is typical. This means the drill starts off nice and centred as opposed to what happens with

Here is max temperature from Baldor to last 20,000 hours. Remember this a Chinese motor could be a little less. Most motors under 100 hp use class A Temperature (°C) Maximum Winding Temperature

The 105° is class A motor Insulation witch most motor use. The temperature drops as pass to outside casing. After that I use 176°F [ 80°C] for outside case? max temperature just to be on safe

Thanks Tony I learned a new word to day: spotting drill I had one in my box, always wounder how it looks so “funny” . It was also not good to drill a 10 mm hole with. To morrow I will check my

Well it shouldn’t, but I’m not the one trying to measure it. I don’t know what Dave thinks he’s measuring, but that 105°C he’s set as his upper limit (over boiling water temperature, by the

Use a spotting drill to make a pilot hole. They're roughly the same thing as a centre drill except wider tip angle (centre drill is 60 degree). Then again a centre drill would probably work just fine

If drilling "a lot" of holes, milling a flat on the rod is not practical. A grooved block with a guide hole will be far more practical [email protected]> wrote:

Yea - I modified? it so it has very little drag.? It works well.?? I bought a mag DRO for it but I'm waiting to do the 16" bed mod to put it on.