Quote:
Originally Posted by Pdelcast
Actually temps depend almost entirely on gearing -- if you use a low enough gear you can keep the 6900 and ESC pretty cool on 3S. The real issue is the bearings and the magnet, you can get a catastrophic magnet failure at above 75000RPM or so. You wouldn't normally see that RPM, but if you pull full throttle during a jump, for example, the motor will unload and hit full RPM pretty quickly.
That said, the newer magnets are handling around 100K RPM without any problems, but the bearings also can't take that RPM (even the Koyo CNC Japanese bearings on the newer CM36 motors) -- so to be safe, we make 60,000 the top allowable RPM.
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Hey there Patrick, does CC plan on making a sub-3600 kV motor with those 100,000 rpm magnets? If you do, I will buy at least 3.
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