How do these motors look?

[broncofan]

I can get a deal on these motors... $5 a piece and I can get a handful of them.

http://www.grainger.com/ec/pdf/AMETEK-LAMB-122180-18-Spec-Sheet.pdf

I have a a roller that I am going to convert to electric, but wanting to do it cheap. Can someone check the specs on these and let me know if they might work? Loaded question I know... just wanting something that will move the cart along at pace that would be deemed fun for a 10 year old. The RPM seems a bit high, I would imagine that might have trouble getting the cart rolling without some crazy gearbox to give it a bit more torque.

Seems like this might be comparable to a 36V 500W motor that I saw on amazon. http://www.amazon.com/Razor-Rocket-...TF8&qid=1448049536&sr=8-1&keywords=my1020+36v Which might be a bit to small to have a "fun" cart, but would probably work to move it along at a snails pace.


If they are not powerful enough, do you think you can use two (or more) somehow? Has this been done? Can you use two 500W motors to make one 1000W motor? or three or four!!!

Thanks in advance.

 

[itsid]

well...

apples and something that closely resembles a stick

No, it's NOT comparable to a my1020 500W motor; not even about'ish

Read the specs closely... see? that's a max power IN of 630 Watts
And as you can see by the power on the right end of the table (air watts)
it's output power is ... well.... much lower 230 air watts (* 0.998... just say one)
of mechanical power.
not even HALF of the peak mechanical power the my1020 is providing happily all day

the my1020 is rated in constant mechanical power (500W) that's enough for a kid and a small kart to have some good fun.
even enough for an adult on a small kart to have a go
the my1020 peaks at around 680Watts mechanical (drawing almost 40 Amps [920 Watts electrical])

You could parallel power the vac motors (I'd say four) to get a similar result.
main reason you'd need one extra is the insane ratio you'll have to add compared to the my1020
it'll be hard to impossible to do that with simple chain ans sprockets in one go.. so you'll loose power on the drivetrain.
Also in parallel the weakest is setting the pace, so the other ones might not be as efficient as you'd expect.

And worse: you'd draw 2400 Watts (electrical) from the batteries to do that (remember the 920 from above?);
and thus you'd need a controller that's providing more than twice the Amperage
(the my1020 controller should have ~50Amp peak.. to power the vac motors you'd need at least 80)

also.. the tiny motors inside (when you removed the plastic fan housing)
what is that.. brushed? bearings? shaft size?

Personally,
I'd simply ignore said offer and move on.
But if you're willing to try.. please do, could work with some brain and elbow grease put into it.

'sid

 

[Typa]

I run a 500w 36v 17.5a motor with 11 tooth sprocket and 55tooth on rear axle, kart with me on it tops out at about 17kmh I weigh about 65kgs. Maybe this helps. Included a couple photos of my crude setup.

 

[mikkelibob]

Is that single wheel drive with independent suspension?

 

[Typa]

Yes single wheel drive, took a front end off a kids mini quad bike. No suspension, Its just there for aesthetics. wish i took the time to do it now. Have recently put a controller on it finally.

 

[HelloYOU]

I don't really trust those Chinese made brushed motors. I have no experience with them. I just think you are better off going with a 200 to 373 watt motor like this: http://www.amazon.com/Leeson-Motors-Motor-1-1800RPM-Rigid/dp/B000AL34DE/ref=sr_1_12?ie=UTF8&qid=1452580791&sr=8-12&keywords=leeson+DC+motor+1%2F2 I have one of these motors and I can tell you that they can take serious abuse. More than I would trust those tiny motors claimed to be "500 Watts" could do.

But I'm sure someone that has worked around those motors could tell you if they are good.

 

[Typa]

Mmm, might look into these for next project, but building bigger and more for off road.

 

[Typa]

Heres a link to my video, was still in the process of tidying everything up. Still havent finished it. But getting there. Leave me a comment on video if you have any https://youtu.be/zk-9MAfS5VA

 

[HelloYOU]

Don't know if you still looking for a motor, but I bought this one: http://www.surpluscenter.com/Electrical/DC-Motors/DC-Motors-Face-Mount/2-5-HP-2000-RPM-36-VDC-MOTOR-IMPERIAL-ELECTRIC-P66SR274-10-2357.axd Sometimes you hit the jackpot on these surplus sites. So just ignore my other post above because this is a beast motor that will definitely work and its cheap compared to the cost of new stock.