how about this motor?

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JCinStaunton
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how about this motor?

This is on ebay with 7 days left I believe. current costs is approx $550 including shipping.

SPECIFICATION:

· 18 HP at 72 Volts DC ELECTRIC MOTOR

· 12 HP at 48V

· 9,000 RPM no load approximately

· 200 Amps full load approximately

· Ball bearing

· Rotation reversible

· Shaft 1” Diam. X 2 3/4" hallow splined shaft

· Size 7” X 17” including shafts approximately

· Shpg. 70 lb estimated

Only thing Im not sure about is the shaft that come out of the back of the motor? maybe can use that for a generator to power the lights and such? instead of using an accessory battery? or using it to help charge the accessory battery?

andrew
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Re: how about this motor?

Can you find more information? Model number? Motor torque graphs?

[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

JCinStaunton
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Re: how about this motor?

Didn't see anything but this is the link I had in ebay for it. there is one bid on it for 399 I believe. Maybe the seller can get the info?

72V 18 HP DC ELECTRIC VEHICLE MOTOR

Jeffkay
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Re: how about this motor?

Nice motor but it may only be intermittent duty... Hydraulic motors are like that.

andrew
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Re: how about this motor?

It says in the listing that it's 40 hp intermittent, and 18 hp continuous. Looks like a really nice motor. I'd still like to see some torque/speed data to know kind of what speed is best to run it at.

A no-load speed is not useful information for a series wound motor, because this is always very high. The way a series wound motor operates is the torque just slowly tapers off as the speed goes up, but doesn't drop fast like it does for a PM motor. This means its not smart to run them no-load, and they can actually explode if done so!

[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

frodus
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Re: how about this motor?

That looks a LOT like an Advanced DC motor...

Its got that weird face to it (bearings?)

Here's a pic of my motor..
http://www.evfr.net/coppermine/thumbnails.php?album=12

notice the similarities... Ask what the model is, because ADC has torque curves for most of their stuff....

____________

Travis Gintz
1986 Honda VFR Conversion
www.evfr.net

jdh2550_1
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Re: how about this motor?

Yeah, I thought it might be an ADC too. However, then I thought - won't most series wound motors look similar (those that aren't pancake motors)?

Anyway - one thing to be wary of is look at the shaft - isn't that a curved spline that is permanently fixed? A slotted shaft is MUCH easier to work with...

EDIT: Oops just read the post - double shaft - however the other shaft is straight splines - easier than the curved spline but still not as easy as a slotted shaft...

John H. Founder of Current Motor Company - opinions on this site belong to me; not to my employer
Remember: " 'lectric for local. diesel for distance" - JTH, Amp Bros || "No Gas.

andrew
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Re: how about this motor?

The curved spline side will most likely be the side he would need to work with, because that's the face mount side.

[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

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