Revolt new motor RV 160 Pro

[shoebaker]

Looks like it has the picture of the 160 short as well, how long is this thing, something around 100+10mm?


REVOLT standard factory ratings
________________weight___width_____kv___continuous__peak_price(us)
100_Regular_____2.7______93+11_____57___2___________5____220
100_Pro ________3________109.5+10__49___3___________6____265
120_Pro_Short___2.7_______56.5+11.5_49___2.5_________6____260
120_Regular_____4.3______93+11.5___45___5___________10___270
120_Pro ________4.8______116+10____43___6___________15___335
160_Short_______5________79.5+20___45___8___________15___385
160_Pro ________8________??________45___12__________20___585


Continuous is double that of 120 pro to 12kW but peak is "only" 20kW up from 15kW. What is the limiting factor here?

Heres a good 120 pro build if you havent seen it:
https://endless-sphere.com/forums/viewtopic.php?f=28&t=64342

 

[macribs]

Well the 160 pro got 3.2 kilos extra over the Rv 120 Pro. Where do that weight go? Extra copper? Stator?
Could it be that eddy current is part of the answer to why the Rv 160 pro is rated to "only" 20kw?

 

[John in CR]

Continuous is double that of 120 pro to 12kW but peak is "only" 20kW up from 15kW. What is the limiting factor here?

They're being more conservative with the 160's rating. More info is needed to compare the two similar motors. Kv gives to Kt (torque per amp), which is 9.549/Kv in rpm/volt to give you Nm/A. Since the Kv is the same, so it Kt, and they both make 0.21 Nm/amp. The missing number needed to get a feel for power limits is phase-to-phase resistance, which tells you the copper heat losses. No load current near the rpm you want to run is also important, because that times voltage gives you the iron core and magnet losses that vary with rpm.

 

[9lives]

Am about to order a 160 short for my mid drive project. Was going to run a big block but power is addictive. Going direct drive so was thinking of going 35kv route with a 12 to 60 tooth drive. I want torque over outright speed (50-60kmh is enough) and would like to run a 16 to 18s battery setup so any views if I am on right track?

Also anyone have a source on the 20mm sprockets preferably in 35# chain? 3/4 inch readily available and revolt will customise shaft but thought I would ask first?

 

[boisrondevens]

Also anyone have a source on the 20mm sprockets preferably in 35# chain? 3/4 inch readily available and revolt will customise shaft but thought I would ask first?

http://www.staton-inc.com/

 

[motomoto]

For those interested in a RV160 with an Adaptto controller.

Here is a link to Adaptto testing a 160 short.

https://www.youtube.com/watch?v=4icinwbNDXg&feature=youtu.be

 

[crossbreak]

Seems the rebuild removed the sizing of the Rv 160 Pro. If you look at the Rv 160 short they have an image with measurements for the motor. I think there was also one of those for the 160 Pro, but it ain't on the web no more. Anyone got a copy of that image they could post here in the thread?

*bump*

anyone??

 

[macribs]

Forgot about this. Here it is the Revolt 160 pro.

 

[redline2097]

Whats the easiest way to cool RV 160, via fan? Any guide or tutorial to that. PC fan and large heatsink attached where?

 

[sn0wchyld]

Whats the easiest way to cool RV 160, via fan? Any guide or tutorial to that. PC fan and large heatsink attached where?

the side covers act like large fans themselves, so its 'passively' cooled - if you need active cooling you may be better off lookign at a larger/different motor.

 

[Wheazel]

Whats the easiest way to cool RV 160, via fan? Any guide or tutorial to that. PC fan and large heatsink attached where?

You can always 3dprint extra fans that force more air through the motor. Would be easy to setup on the revolt.

 

[redline2097]

Whats the easiest way to cool RV 160, via fan? Any guide or tutorial to that. PC fan and large heatsink attached where?

the side covers act like large fans themselves, so its 'passively' cooled - if you need active cooling you may be better off lookign at a larger/different motor.

I would need it sides covered via revolt because this is coming to motocross bike and we ride in very bad, occasionally wet and muddy conditions.

 

[boisrondevens]

I could easy make side coverts with my CNC if there is demands

 

[John in CR]

I could easy make side coverts with my CNC if there is demands

YOu simply need to turn one of the sides into a centrifugal fan, which will draw air through the motor. Look at simple blade designs use on RC outrunners. It could be as little as an end plate on one side with the existing structure to act as the blades (though personally I would add some blades at the perimeter). The end plate stops air from rushing in from the side, resulting in a low pressure region behind the blades as air is flung off the perimeter edges, and that causes air to be drawn through the motor from the other side. It works tremendously well (except at low rpm), and will result in a cooler more efficient motor.