Definitive Tests on the Heating and Cooling of Hub Motors

[amberwolf]

BTW, I've moved the whole OT section over to my "blog" thread,

https://endless-sphere.com/sphere/t...-one-the-life-of-amberwolf.49550/post-1816805

and linked this thread from it instead, since my state of being hasn't anything to do with heating and cooling of hubmotors.

 

[ahmet]

reading the whole thread for the last 24 hours i would like to ask if anyone achieved a comparable result to statorade with adding nominal volume of 5 mls of plain atf without any ferritic particles and surfactants?

a centrifugal force keeping only a few mls of oil film where its supposed to be during rotation should not cause any spill/leak problems at all i presume.

And as long as it fills/reduces the air gap in between stator poles and permanent magnets glued to the rotor there must be a heat exchange increase.

 

[E-HP]

reading the whole thread for the last 24 hours i would like to ask if anyone achieved a comparable result to statorade with adding nominal volume of 5 mls of plain atf without any ferritic particles and surfactants?

a centrifugal force keeping only a few mls of oil film where its supposed to be during rotation should not cause any spill/leak problems at all i presume.

And as long as it fills/reduces the air gap in between stator poles and permanent magnets glued to the rotor there must be a heat exchange increase.

Sounds like a good contribution to this thread. Please provide your before and after test results!
There’s about 200 posts in this thread discussing oil cooling, but none that propose using such a small amount, so it would be interesting to see the effect.

 

[ahmet]

came across a guy implementing swamp cooling method to the hub motor perimeter by wrapping a strap all around and splashing water as needed.

i decided to try this first. as i noticed with careful inspection the hub motor on dualtron togo 9 inch wheels have some space around the motor casement to wrap some straps or sponges to retain more water than just spraying mist on the shells. will provide feedback if any improvement occurs.

 

[amberwolf]

Regarding the black-paint method of helping things shed heat, here's a video about some of the "blackest blacks":