alec
10 W
I'm in the process of replacing the hall sensors inside my Cromotor V3. Yes, somehow four out of six of my sensors have died. I'm likely the most unlucky Cromotor owner on here. After removing the stator, a few observations:
Full non-cropped, obviously higher res photos, click here.
Here's what I see ("?" for unknown):
Or possibly:
My research thus far:
eBike sleuths, what do you think? :?
- There's a lot of magnetic force when dealing with the stator... Yeah, I accidentally got my hand caught between the gear puller and the magnets (idiot alert). Waiting for the huge bruise to appear. :lol:
- Realized that I purchased bipolar Honeywell SS441 sensors and not unipolar (SS441A). I've read conflicting statements over which hall sensor the Cromotor V3 actually uses, but it seems to lean more towards the SS441A (unipolar). But this leads me to my main question, stated below (#3).
- Somebody, anybody, do you recognize this make/model of hall sensor that's currently in my Cromotor V3 from the factory? My work was immediately halted when I took a flashlight and saw that the markings match nothing to Honeywell...?
Full non-cropped, obviously higher res photos, click here.
Here's what I see ("?" for unknown):
Code:
? ? / S, 4 5 2
Or possibly:
Code:
2 1 7 S, 4 5 2
My research thus far:
- The closest thing I found, or rather, the only thing including the numbers "452" is the EW452 from Asahi. However, as you see on the datasheet, the markings on the actual sensor are different than what's visible here. Also, I cannot find a single supplier for this EW452.
eBike sleuths, what do you think? :?