I came across this motor and im wondering how it would compare to an etek. I was thinking of putting this on a pocket bike or similar mini bike frame and running it at 48 volts. http://www.73.com/specs/ya859.php
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John:
It has somewhat lower output power and efficiency than an Etek brushed motor, but 2-3 HP may be plenty for your application. Brushed Etek motors are rare and tend to bring a high price. My concerns would be:
1) What are the dimensions and the weight of the motor?
2) Can you get spare parts, especially brushes? (this may be a problem even with the Etek...)
Willie
What is the price?
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Pic from http://www.electri
On this link is the main listing for the motor about 1/3 down the page http://www.73.com/a/0082.shtml
It's also showing up on ebay as well, but a little pricy.
Scooter Kart Bike ev electric motor Electrathon 36v dc
I think it looks like a pretty decent motor. Due to it's size, it could probably take a lot of amps without frying. I bet it could be overvolted to 48v ok, but the speed will be pretty high. The main issue is the motor size and weight. Might be hard to fit on a pocketbike, but I'm sure it would really make it move.
[url=/forum-topic/motorcycles-and-large-scooters/587-my-kz750-electric-motorcycle-project]KZ750 Motorcycle Conversion[/url]
[url=/forum-topic/motorcycles-and-large-scooters/588-fixing-my-chinese-scooter]900 watt scooter[/url]
Pic from http://www.electri
that "torque curve" is a little mistleading... its labels for HP, Torque and Amps seem misleading... and the numbers don't even match the data on the table.
I'd be very weary of this motor if its pricey.
____________
Travis Gintz
1986 Honda VFR Conversion
www.evfr.net
I contacted the ebay seller, and he provided me with a different torque graph, which does not match the one on the surplus site. I've attached it here
If you compare just the pictures on EBay and surplustraders they are different. Are these really the same motor, I don't think so.
Also the motor on EBay has 4 wires and the other only has 2 wires.
Chas S.
Well the pictures the ebay seller presents and what they have on the surplus site are identical, which leads me to believe this ebay seller may be selling them at a profit.
After closer inspection I see that there are 2 different graphics on surplus on different pages. Check the links above.
The first graphic does match the EBay version.
Hmm, it looks like there is two different types of motors here. One is slightly longer, but the one which is longer also has a different wiring setup. I'm not sure if that may change the performance of either motor but it does raise some questions for me.
Maybe that is why the charts do not match the power and amp curves.
Chas S.
Check this link you posted: http://www.73.com/a/0082.shtml
Looks to me like the 12" length one is with the heatsink, and the shorter 9 3/4" one has the duel sets of wires with no heat sink. However, this is not entirely clear because in one of the pictures at the link it looks like it's over 10 inches in length, but it is hard to judge from the photo.
I would try and get some information from the manufacturer: Met motors
At this link: http://www.73.com/specs/ya859.php they also note a "fin endlbell version" being 5A-3629506H
So, the short one (listed on ebay) would appear to be: 5A-3629509G
And the long version w/fin endbell would appear to be: 5A-3629506H
I searched Met motor's website and neither of these come up. They do seem to be 36v motors. And the 5A at the beginning seems to indicate the 6-inch diameter.
I think they look like a pretty decent motor, though the taper shaft and high speed may be a challenge to deal with.
[url=/forum-topic/motorcycles-and-large-scooters/587-my-kz750-electric-motorcycle-project]KZ750 Motorcycle Conversion[/url]
[url=/forum-topic/motorcycles-and-large-scooters/588-fixing-my-chinese-scooter]900 watt scooter[/url]
Pic from http://www.electri
I'm seriously considering purchasing this motor, it has a tapered shaft which i think i could just turn down on a lathe and key, or just key and use a tapered sprocket/pulley. What kind of peak power would I be looking at if i were to run this motor at 48 volts though? I'm thinking of actually using this on a pocket bike strictly for drag racing in the 1/8th mile. I also already have a logisystems 48 volt 800 amp controller which i think would work well for this, as the current series motor that i have on my bike doesn't seem to be performing as i expected.
they let you on the track with that thing? I know the NEDRA outlawed pocket bikes and go-karts a few years ago... is this just street racing?
I'm interested, because I've got a G0-kart that has an entry in NEDRA before they discontinued:
GE/H
EkoKarts Go Cart - 72V
Driver: Curtis Flewelling
Owner: Erik Sutton (Travis Gintz is current Owner)
12.126s 53.05mph
Woodburn Drags 2000, OR
August 26, 2000
I'd love to do the 1/8 mile...
Good luck with that motor, let us all know how it turns out!
If it doesn't, I've got a perm mag motor, its a GE 48V motor, could be machined a little... 50 bucks and shipping if you want it.
____________
Travis Gintz
1986 Honda VFR Conversion
www.evfr.net
As far as I know NEDRA still doesn't allow this class anymore, but my local track has approved that I can run the bike there, as long as i have a chain guard and full racing wear. The series motor on the bike now I found out makes about 2.5 hp at 2500 rpm, which really isn't much for a bike, the torque at low rpm is very high though and takes off very well. It's also very heavy though, probably right around 60 pounds.
60lbs, thats about the size of my advanced DC.... only 2.5 hp?
how many volts?
____________
Travis Gintz
1986 Honda VFR Conversion
www.evfr.net
It's rated for 36 volts i believe, and is rated 2.5 hp at 2300 rpm i found out from another member online. It was for a very small hand forklift.
John, how much are they charging for the Met motor?
[url=/forum-topic/motorcycles-and-large-scooters/587-my-kz750-electric-motorcycle-project]KZ750 Motorcycle Conversion[/url]
[url=/forum-topic/motorcycles-and-large-scooters/588-fixing-my-chinese-scooter]900 watt scooter[/url]
Pic from http://www.electri
I called them and talked to Danny, he said if i was to buy just one motor the price would be $400 regardless if it has the heat sink on the end, if I were to buy in larger quantity he said the price would be less.
That's probably not a bad price for the quality. But, I'm sure there are other motors out there that would give better performance for the money. Here's some:
Rebuilt, modified motors by Jim Husted
[url=/forum-topic/motorcycles-and-large-scooters/587-my-kz750-electric-motorcycle-project]KZ750 Motorcycle Conversion[/url]
[url=/forum-topic/motorcycles-and-large-scooters/588-fixing-my-chinese-scooter]900 watt scooter[/url]
Pic from http://www.electri
On Ebay this motor is around 200.00
Trying to Change the old school ways of doing things
But I never Never try to break the laws of Physics
http://www.doingitall.net/EnerTrac
I went ahead and ordered one of these motors a few days ago and it should be here on thursday this coming week. I'll get some pics of the motor guts and post them up here for anybody that may be interested.