Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

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sketchism   100 W

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by sketchism » Sep 24 2019 6:51pm

rockstar195 wrote:
Sep 12 2019 7:35pm
Has anybody have luck running the hub sinks ONLY, with NO FF or Statorade?

people have and it does help, (if your magnet ring gets warm, the hubsinks will pull more heat out regardless) but they work so well together i wouldnt recommend doing one without the other, unless you have a specific reason to need to do so :flame:
Don't overheat your ebike hub motor - www.hubsink.com (beta testing still open)
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rockstar195   100 W

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by rockstar195 » Oct 04 2019 11:01pm

Those of you with the hubsinks, are you tightening the nuts and bolts all the way down? Just installed mine and still have a gap inbetween each hubsink....it seems not necessary to do so, seems secure at that

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by sketchism » Oct 04 2019 11:48pm

The gap works as a spring to keep tension on the assembly throughout heat cycles you are correct

Don't tighten them right up till they touch, just untill they are snug and equal around the hub

rockstar195 wrote:
Oct 04 2019 11:01pm
Those of you with the hubsinks, are you tightening the nuts and bolts all the way down? Just installed mine and still have a gap inbetween each hubsink....it seems not necessary to do so, seems secure at that
Don't overheat your ebike hub motor - www.hubsink.com (beta testing still open)
https://hubsink.com HubSink - Hub Motor Heatsinks

https://australiandroneco.com Australian Drone Co - Aerial Videography

Nothing is fool proof to a sufficiently talented fool, trust me we'll find a way :idea:

sketchism   100 W

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by sketchism » Oct 09 2019 7:28pm

I have a bit of time on the CNC this week

does anyone with a 273 at hand have the exact measurements for the magnet ring diameter, i have been given 3 or 4 different ones now and want to make sure im accurate, it looks like 295mm is the average so far?
what is the true clearance between flanges?

can be measured with a wire then a rule
qs273.jpg
qs273.jpg (289.14 KiB) Viewed 833 times
Don't overheat your ebike hub motor - www.hubsink.com (beta testing still open)
https://hubsink.com HubSink - Hub Motor Heatsinks

https://australiandroneco.com Australian Drone Co - Aerial Videography

Nothing is fool proof to a sufficiently talented fool, trust me we'll find a way :idea:

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sn0wchyld   1 MW

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by sn0wchyld » Oct 10 2019 4:03am

sketchism wrote:
Oct 09 2019 7:28pm
I have a bit of time on the CNC this week

does anyone with a 273 at hand have the exact measurements for the magnet ring diameter, i have been given 3 or 4 different ones now and want to make sure im accurate, it looks like 295mm is the average so far?
what is the true clearance between flanges?

can be measured with a wire then a rule
qs273.jpg
image is to scale... import it into any CAD software, scale and you can measure yourself? would be more accurate than a wire + rule... unless you want the drawing verified?

sketchism   100 W

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by sketchism » Oct 10 2019 4:55am

Thanks mate thats definately handy, my main concern is the QS 205 ones dont match the drawing or specs from QS (295mm) in real life after paint etc and the tolerances are so tight that i actually spent quite a bit of time with trial and error to get the final hubsinks to truely fit correctly so i would love a few more real life measurements

sn0wchyld wrote:
Oct 10 2019 4:03am
sketchism wrote:
Oct 09 2019 7:28pm
I have a bit of time on the CNC this week

does anyone with a 273 at hand have the exact measurements for the magnet ring diameter, i have been given 3 or 4 different ones now and want to make sure im accurate, it looks like 295mm is the average so far?
what is the true clearance between flanges?

can be measured with a wire then a rule
qs273.jpg
image is to scale... import it into any CAD software, scale and you can measure yourself? would be more accurate than a wire + rule... unless you want the drawing verified?
Don't overheat your ebike hub motor - www.hubsink.com (beta testing still open)
https://hubsink.com HubSink - Hub Motor Heatsinks

https://australiandroneco.com Australian Drone Co - Aerial Videography

Nothing is fool proof to a sufficiently talented fool, trust me we'll find a way :idea:

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emmgee   10 W

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by emmgee » Oct 11 2019 4:58am

Throwing in the Goldenmotor hubmotor (large diameter model) with&w/o internal controller:
I measured the circumference with a wire (903mm) and calculated the diameter -> 287.4mm.
Width between flanges, flat part without radius: 16mm max, so perfect for 1x 15mm ring of hubsinks.
Magnet width: 19mm, diameter for spokes: 299mm.
Conclusion: Diameter is a few mm less than the 295mm of QS273, could be problematic for a good contact surface with hubsinks.
goldenmotor.jpg
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SlowCo   100 kW

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by SlowCo » Oct 12 2019 3:53am

emmgee wrote:
Oct 11 2019 4:58am
Conclusion: Diameter (287.4mm) is a few mm less than the 295mm of QS273, could be problematic for a good contact surface with hubsinks.
:idea:
Get a 15mm wide, 902mm long and 1mm (or 1.2mm/1.5mm) thick aluminum strip cut at a customer friendly fabrication shop or sheet metal supplier. Every 1mm thickness of strip will add an extra 2mm of diameter to the Magic Pie. That times Pi = 6.28mm to the circumference. Put it under the HubSinks (for a QS273) on the Golden Motor Magic Pie with thermal paste between all layers. I don't know how much mm's HubSinks have to spare between the flanges when bolted down so 1mm might or might not be enough for an underlay strip?

sketchism   100 W

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by sketchism » Oct 12 2019 4:09am

may even be ok with a 2mm silicon thermal tape under in place of the thermal paste, pads it out snugly and good heat transfer
SlowCo wrote:
Oct 12 2019 3:53am
emmgee wrote:
Oct 11 2019 4:58am
Conclusion: Diameter (287.4mm) is a few mm less than the 295mm of QS273, could be problematic for a good contact surface with hubsinks.
:idea:
Get a 15mm wide, 902mm long and 1mm (or 1.2mm/1.5mm) thick aluminum strip cut at a customer friendly fabrication shop or sheet metal supplier. Every 1mm thickness of strip will add an extra 2mm of diameter to the Magic Pie. That times Pi = 6.28mm to the circumference. Put it under the HubSinks (for a QS273) on the Golden Motor Magic Pie with thermal paste between all layers. I don't know how much mm's HubSinks have to spare between the flanges when bolted down so 1mm might or might not be enough for an underlay strip?
Don't overheat your ebike hub motor - www.hubsink.com (beta testing still open)
https://hubsink.com HubSink - Hub Motor Heatsinks

https://australiandroneco.com Australian Drone Co - Aerial Videography

Nothing is fool proof to a sufficiently talented fool, trust me we'll find a way :idea:

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emmgee   10 W

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by emmgee » Oct 14 2019 4:09am

Interesting... 3M produces a "Thermally Conductive Silicone Interface Pad 5586" (sold e.g. by Mouser) 210x155x2mm which could do the job. Thanks for the tips!
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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by 999zip999 » May 07 2020 6:08pm

Justin sells a kit for 69.00usd and hubsink sells the fins and nuts for 69.00usd only. No storaid or thermal paste. Did I read this right ? I like USA and shipping from Canada can be expensive. ???

sketchism   100 W

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by sketchism » May 07 2020 6:20pm

999zip999 wrote:
May 07 2020 6:08pm
Justin sells a kit for 69.00usd and hubsink sells the fins and nuts for 69.00usd only. No storaid or thermal paste. Did I read this right ? I like USA and shipping from Canada can be expensive. ???
Hey mate

The pricing on Grin and the Hubsink website are the same, both kits include the nuts, bolts and thermal paste, both pages have the statorade as a seperate product.

the Hubsink website ships from Australia and the grin one from Canada
Don't overheat your ebike hub motor - www.hubsink.com (beta testing still open)
https://hubsink.com HubSink - Hub Motor Heatsinks

https://australiandroneco.com Australian Drone Co - Aerial Videography

Nothing is fool proof to a sufficiently talented fool, trust me we'll find a way :idea:

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by jonescg » May 07 2020 8:04pm

sketchism wrote:
May 07 2020 6:20pm
999zip999 wrote:
May 07 2020 6:08pm
Justin sells a kit for 69.00usd and hubsink sells the fins and nuts for 69.00usd only. No storaid or thermal paste. Did I read this right ? I like USA and shipping from Canada can be expensive. ???
Hey mate

The pricing on Grin and the Hubsink website are the same, both kits include the nuts, bolts and thermal paste, both pages have the statorade as a seperate product.

the Hubsink website ships from Australia and the grin one from Canada
Sketch! Good to see you're still around :) I'm likely to be making an order for more pouch cells so if you know of any projects let me know - we can hit the MOQ.

sketchism   100 W

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by sketchism » May 07 2020 8:17pm

jonescg wrote:
May 07 2020 8:04pm
sketchism wrote:
May 07 2020 6:20pm
999zip999 wrote:
May 07 2020 6:08pm
Justin sells a kit for 69.00usd and hubsink sells the fins and nuts for 69.00usd only. No storaid or thermal paste. Did I read this right ? I like USA and shipping from Canada can be expensive. ???
Hey mate

The pricing on Grin and the Hubsink website are the same, both kits include the nuts, bolts and thermal paste, both pages have the statorade as a seperate product.

the Hubsink website ships from Australia and the grin one from Canada
Sketch! Good to see you're still around :) I'm likely to be making an order for more pouch cells so if you know of any projects let me know - we can hit the MOQ.
same mate, havent seen you on FB since you left but im still trawling the forums, been working on finalising the wheelie box!

awesome man! i have an electric supercharger project i need some punchy small packs for ill shoot you an email!
Don't overheat your ebike hub motor - www.hubsink.com (beta testing still open)
https://hubsink.com HubSink - Hub Motor Heatsinks

https://australiandroneco.com Australian Drone Co - Aerial Videography

Nothing is fool proof to a sufficiently talented fool, trust me we'll find a way :idea:

999zip999   100 GW

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by 999zip999 » May 07 2020 8:40pm

Sorry love Justin's website says both stearate and thermal paste. Hubsink website does not explain it's products very well. will weight on answer from hubsink. It's in the picture but it's not in print. Say what you mean mean what you say
This is not a bad man, comic I have to deal with the Riddler.

999zip999   100 GW

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by 999zip999 » May 09 2020 4:42pm

He lives in the land of OZ. I guess are clocks are different.

sketchism   100 W

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by sketchism » May 09 2020 6:26pm

999zip999 wrote:
May 07 2020 8:40pm
Sorry love Justin's website says both stearate and thermal paste. Hubsink website does not explain it's products very well. will weight on answer from hubsink. It's in the picture but it's not in print. Say what you mean mean what you say
This is not a bad man, comic I have to deal with the Riddler.

no worries mate if you are looking to cool your ebike hub motor, the hubsinks will do that no worries, you can purchase them from anywhere you like, the statorade is seperate but highly reccomended.

grin hubsink - https://www.ebikes.ca/shop/electric-bic ... k-set.html
grin statorade https://www.ebikes.ca/shop/experimental ... 40c282afe1

website hubsink - https://hubsink.com/products/heatsink
website statorade - https://hubsink.com/products/genuine-st ... lian-stock
Don't overheat your ebike hub motor - www.hubsink.com (beta testing still open)
https://hubsink.com HubSink - Hub Motor Heatsinks

https://australiandroneco.com Australian Drone Co - Aerial Videography

Nothing is fool proof to a sufficiently talented fool, trust me we'll find a way :idea:

999zip999   100 GW

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by 999zip999 » May 09 2020 7:25pm

Good I feel great as I got sketch out of the water and back on the beach. Sorry sketch we miss you thought you might gone on the other side of the reef
By the way I sent you a message through email.Thanks.

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Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Post by Tony01 » May 27 2020 1:06pm

sketchism wrote:
May 09 2020 6:26pm
999zip999 wrote:
May 07 2020 8:40pm
Sorry love Justin's website says both stearate and thermal paste. Hubsink website does not explain it's products very well. will weight on answer from hubsink. It's in the picture but it's not in print. Say what you mean mean what you say
This is not a bad man, comic I have to deal with the Riddler.

no worries mate if you are looking to cool your ebike hub motor, the hubsinks will do that no worries, you can purchase them from anywhere you like, the statorade is seperate but highly reccomended.

grin hubsink - https://www.ebikes.ca/shop/electric-bic ... k-set.html
grin statorade https://www.ebikes.ca/shop/experimental ... 40c282afe1

website hubsink - https://hubsink.com/products/heatsink
website statorade - https://hubsink.com/products/genuine-st ... lian-stock
Are the qs205 sinks wider than the ones for other 205mm motors? Should I buy from grin or the website for 205? Is one going to ship faster than the other?
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