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Old 06-28-2008, 07:10 AM   #1
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Default brushless...4800kv = 4.5 turn? true or false

hi, just wondering the equasion for working out the turns of a brushless motor. is a 6000kv a 6.5, 4800kv a 4.5 etc.... just some shops advertise in kv and we normally work in the point 5 system. any help would be great..
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Old 06-28-2008, 07:18 AM   #2
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NO.....

That is not how the ratings work.

Just look at this chart from novaks website and you will see that.

http://www.teamnovak.com/products/br...spec_chart.htm


There are several factors that will influence the rated KV of motor, The number of windings, type of windings, length of can are 3 of the bigger ones.


If I had to gues the whole .5 system was created to make it easier for the general rc population to know which motors were faster and slower. But this is just a guess on my part. I'm sure someone else will have more details.
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Old 06-28-2008, 07:26 AM   #3
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so working off the novak chart a 4800kv would be about a 6.5
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Old 06-28-2008, 08:12 AM   #4
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Quote:
Originally Posted by acko View Post
so working off the novak chart a 4800kv would be about a 6.5
NO, the point RobbieS was making is that they are two totally different ways of rating a motor.

kV is simply a way of rating the RPM per volt of a motor. It does not take power into account at all.

4.5 etc is the actual motor winding. A lower wind is a more powerful motor and usually revs higher too.

Don't try and compare the two, it simply cannot be done. Just worry about the wind in 540-equivalent sensored motors.
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Old 06-28-2008, 08:54 AM   #5
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BBAAAARRRRT (the NO!! buzzer sounds)

dingdingding (correct buzzer sounds)

NO, NO, F****N NO

The above link has it all, there dose seem to be an equasion=
3.5 = 10500 kv
4.5 = 9000 kv
5.5 = 7400kv
6.5 = 6400kv
13.5 = 3300kv

much easyer if they just put HP & RPM per Volt
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Last edited by ROV; 06-28-2008 at 09:04 AM.
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