Thread: New Product Change Sun 10 blade 70mm
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Old May 28, 2012, 01:50 AM
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Greece, Attica, Athens
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Originally Posted by anlucas View Post
I am stumped!

Just spent 1 hour trying to fit a new CP - 2800kv to this fan.
The motor seems to be balance OK - just OK. There's some vibration in the mid-rpm range. Tried 3 different 4m shaft adapters (stock, Hayoe and ExtremeRC) but I could not get anything close to an acceptable fit. There's significant vibration with the shaft adapter attached.
...
Just a follow-on from this post...

In the end it seems that the motor must have an issue. I wasn't totally happy with the result and I disassembled everything.

I run the motor, on 5s, without any load and it's smooth running up to a certain rpm. Afterwards, it starts screaming and I see sparks coming off the middle bearing area (the motor has 3 since it has a standoff).

I didn't notice this in the begining since I was balancing it on 4S.
This is supposed to be 6s(5 blade load) capable motor.

Any suggestions?
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