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Electronics => Electronics => Topic started by: Jdog on February 12, 2009, 04:26:20 PM

Title: Questions about motor specs
Post by: Jdog on February 12, 2009, 04:26:20 PM

I need a 7.5 volt motor with 20lb.\foot of torque. I found this motor http://www.grainger.com/Grainger/wwg/guideBrowse.shtml.
If my calculations are correct than its saying that the motor has 15 lbs\foot of torque and 2350 rpm. Isn't that ridicuously good for a $13 motor?

Title: Re: Questions about motor specs
Post by: Razor Concepts on February 12, 2009, 04:31:28 PM

Link doesnt work - tell us the part number.

Most manufacturer specs are overrated, those are the absolute maximum specs they could get out of it in a perfect world - in real life it will be lower.

Title: Re: Questions about motor specs
Post by: Jdog on February 12, 2009, 06:20:28 PM

That was the only link I had. Nevermind.

Title: Re: Questions about motor specs
Post by: MaltiK on February 12, 2009, 07:31:07 PM

Am I the only one who thinks a standard 8v motor with 20lbs/in of torque sounds kind of unrealistic?

Title: Re: Questions about motor specs
Post by: Jdog on February 12, 2009, 07:47:48 PM

I meant 10 llb./foot.

Title: Re: Questions about motor specs
Post by: MaltiK on February 13, 2009, 05:09:36 AM

Quote from: Jdog on February 12, 2009, 07:47:48 PM

I meant 10 llb./foot.

Still quite unrealistic
These little guys are usually measured in oz/in

Title: Re: Questions about motor specs
Post by: Jdog on February 13, 2009, 09:53:12 AM

Wait I still typed it wrong. 10lb./inch. Nevermind it doesn't matter anyway.

Title: Re: Questions about motor specs
Post by: MaltiK on February 13, 2009, 09:14:29 PM

Quote from: Jdog on February 13, 2009, 09:53:12 AM

Wait I still typed it wrong. 10lb./inch. Nevermind it doesn't matter anyway.

That sounds better but still unrealistic... Remember you can always edit your posts :P