Seite 21 von 21

Re: Dismantling and repairing the motor :o

Verfasst: Do 22. Jan 2026, 11:22
von jeff-jordan
Hello bob, I just need to repeat myself: I'm pretty sure that I know why and when the "kissing" between the magnets and the stator happened.
It was in august 2023, when I drove the motor too hot... and the "zing-zing" sound once appeared. :roll:

:idea: The stator inside the motor can easily reach about 120°C or even more (at high current over a long period), so the diameter of the stator (nickel steel alloy assumed) extends about 0.5mm (compared to 20°C). That's enough to touch prone magnets....

If I had tried to remove the magnets you've spotted, I would have had to use brute force (because they are firmly glued and not loose), and the magnets would not have survived. :evil:

And by the way: no need to worry, I already have a spare motor inside my garage.... just in case. 8-)

Re: Dismantling and repairing the motor :o

Verfasst: Do 22. Jan 2026, 12:09
von bob2.0
Spare motor, nice!

Yes, fair, a stator expanding that much from too hot makes sense rather than rust out.

Hope the refit goes well. Don't use too much sealant! I made a mess of it first time :)

Re: Dismantling and repairing the motor :o

Verfasst: Do 22. Jan 2026, 14:18
von jeff-jordan
bob2.0 hat geschrieben: Do 22. Jan 2026, 12:09 Spare motor, nice!
...
Yeah, in 2023 I was lucky enough to get an offer for a new motor for less than €600 (incl. shipping), that's why I jumped at the chance.