Are the 36V/500W and the 48V/1000W the same motor?

[Julez]

I have the suspicion that these 2 motors are actually the same.
With the 36V motor, users reported driving around 35kph at 36V, and around 48kph at 48V.
Can anyone say, what speeds he got with the 48V motor and these voltages?

Does anyone know what a single HBS-36 Motor costs?

Cheers,

Julian

[JonMcClain]

Theoretically, you are probably right in that most brushless motors will operate at nearly any reasonable voltage provided that you have the correct controller. 

However, I just installed a 48v kit with a regenerative 48v controller and I noticed that the hub was laser ID'ed as a 48v unit.  I would be surprised if they would purposely ID the hub as a 48v hub as such if there were not some difference internally.  I'm just not sure what that difference might be! 

Jon

[Lanchon]

I plan to use a 36V at 48V. I bought mine in 2006, before this forum existed and when 48V was not an option. I believe Philip has said to some who asked that a controller upgrade was all that was needed to go up to 48V, but the same question troubles me: why mark some motors at 36V and others at 48V?

I've got a tentative answer: to help customers comply with varied local regulations worldwide. does this sound plausible? maybe someone could ask this direct question to Philip and set all our minds at peace.

[PaintingLoft.com]

i will try to ask if they every reply to me.  I actually have the 48v system and could only afford the 36v battery.  I wrote twice now asking if I could downgrade my controller to fit my battery and NO REPLY! 

[scd]

Hi,

I have a GM 36V 500W motor in my bike running at 48V with the 48V GM regen controller.
At 48V, it is a 667W system (48/36) * 500 = 667

I like my bike, but a little extra power would be nice, so I am thinking
of upgrading to the GM 1000W motor.

Has anyone made this upgrade? and if so, what was the performance improvement?
and would you recommend the GM 1000W motor?

Thanks and Regards,
Scott

[biohazardman]

Hi,

I have a GM 36V 500W motor in my bike running at 48V with the 48V GM regen controller.
At 48V, it is a 667W system (48/36) * 500 = 667

I like my bike, but a little extra power would be nice, so I am thinking
of upgrading to the GM 1000W motor.

Has anyone made this upgrade? and if so, what was the performance improvement?
and would you recommend the GM 1000W motor?

Thanks and Regards,
Scott

I have done the 48v conversion on the 36v motor also no more pedaling unless I want to even on the hills.  I have seen a few of the GM48v wheels with the axle short on one side. http://goldenmotor.com/SMF/index.php?topic=386.0
 You might want to wait till they get that straightened out.  Are you able to draw some good amperage from your batts? I think there is plenty available from these motors they just need more power.  I was wondering about the throttle also as I just have the stock 36v unit and top out at 23+mph.  How about you?

[TOM]

all brushless motors  may work at the different voltages,
36V/500W may work at 48V   or  48V/1000W may work at 36V

but rate power? rate eff?

maybe your e-bicycle  can climb hills at 36V,but at 48v,can't climb,only the speed is faster than before

[scd]

I have not measured current draw while riding or hill climbing.  I have measured the output
of the Hall-effect throttle and it is only 3.6V at full throttle, I think all Hall throttles are supposed
to go to about 4V, so I may be leaving some top-end on the table.

I also seem to top out at about 23+ MPH on level with no pedaling which seems
a little bit wimpy rfor a 48V system.

BTW, do you know a good source for extra throttle and controller connectors?

Regards,
Scott

[/quote]I have done the 48v conversion on the 36v motor also no more pedaling unless I want to even on the hills.  I have seen a few of the GM48v wheels with the axle short on one side. http://goldenmotor.com/SMF/index.php?topic=386.0
 You might want to wait till they get that straightened out.  Are you able to draw some good amperage from your batts? I think there is plenty available from these motors they just need more power.  I was wondering about the throttle also as I just have the stock 36v unit and top out at 23+mph.  How about you?
[/quote]

[biohazardman]

I have not measured current draw while riding or hill climbing.  I have measured the output
of the Hall-effect throttle and it is only 3.6V at full throttle, I think all Hall throttles are supposed
to go to about 4V, so I may be leaving some top-end on the table.

I also seem to top out at about 23+ MPH on level with no pedaling which seems
a little bit wimpy rfor a 48V system.

BTW, do you know a good source for extra throttle and controller connectors?

Regards,
Scott

I have done the 48v conversion on the 36v motor also no more pedaling unless I want to even on the hills.  I have seen a few of the GM48v wheels with the axle short on one side. http://goldenmotor.com/SMF/index.php?topic=386.0
 You might want to wait till they get that straightened out.  Are you able to draw some good amperage from your batts? I think there is plenty available from these motors they just need more power.  I was wondering about the throttle also as I just have the stock 36v unit and top out at 23+mph.  How about you?
[/quote]
[/quote]

I have found the larger Andersons for power which I will soon be using but as yet not decided on a different connector for the throttle.  I robbed one of the connectors off of my defunct 36v controller to use on my 48 so probly in the same shape as you and many others.  Many of the computer connectors would be suitable as long as they are in an enclosed box.  These might work for some things that are in the open.

http://www.wiringproducts.com/index1.html

 I haven't looked much yet though.  Mouser might have something.

http://www.mouser.com/search/Refine.aspx?Ne=254016+1000000411&N=1323038%20254158&Ns=P_SField

[philf]

It would be nice to have a definitive answer to this, but my guess is that there is little difference between the 36V and 48V motor - but perhaps the guage of the phase wires is heavier on the 48V version (expecting that someone pushing 48V into it will also up the current as well)?

Personally, I like having the 36V motor - with the laser stamped "500W" rating emblazoned on it (just in case The Authorities take an interest, as 500W is the legal power limit for an e-bike in Ontario).

I'm tempted to order one of each (motor only), do some direct comparisons...

[biohazardman]

Yes someone needs to be the guinea pig and then teach us all that he learns about the new motor.  Or is that supposed to be inquiring minds need to know.  Either way I am for it.   

[e-lmer]

For the motor sensors you could use these
Four pin connectors at $2.39USD each
http://www.radioshack.com/product/index.jsp?productId=2103293
http://www.radioshack.com/product/index.jsp?productId=2103250

And I wonder if it would be reasonable to use stereo inline headphone
jacks for the throttle.  Nobody should accidentally plug headsets in them.


I suppose that the correct thing to do is to weigh the stock motors.

I can get the 48V motor stock, anybody have the 36V motor stock?
My 36V has been respoked with a new rim.

[Leslie]

Actually e-limer thats a good suggestion to weigh the motor...

To further your good idea you could look at the freight weight for both motors.

Does that work.  To busy ATM to look for myself though.

Hi all