opinions on automotive power window motors ?

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pogo's Avatar (by Gravatar)pogo posted on
March 19, 2006, 2:28 pm
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Anyone used automotive power window motors with success ?

Also, I noticed this phrase on a catalog listing for one --- what does it
mean ?
    Mount 3 bolt on 80mm B.C.

The rest of the listing is below, for reference:

Permanent magnet right angle gearmotor. Designed as automotive power window
motor. High output torque for many DC applications.
SPECIFICATIONS
        a.. RPM 150 at 12 VDC no load
        b.. Voltage 12 DC
        c.. Amps 3-1/2 no load
        d.. Reversible
        e.. Duty continuous
     a.. Left hand shaft viewed from motor
      a.. Shaft 9 mm x 1-1/4"
      a.. Mount 3 bolt on 80mm B.C.
      a.. Size 7-1/2" x 2" x 3-3/4"
      a.. Shpg. 2-1/2 lbs.





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Gordon McComb's Avatar (by Gravatar)Gordon McComb posted on
March 19, 2006, 6:39 pm
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Re: opinions on automotive power window motors ?

Honestly...they're crap for robotics. Power hungry, EMI noisy, and
seldom provide the same torque/speed in both CW and CCW rotations. Use
your money for a power chair motor, if you are interested in the torque.

Of course, power window and windshield wiper motors are fairly cheap;
power chair motors go for a lot more. But if you can find a local repair
shop for wheelchairs you might be able to get a better deal than what
you'll find on the Web.

Burden's (www.surpluscenter.com) is a pretty good source for both kinds.


Three bolts on the bottom of an 80mm case flange or face, perhaps?

-- Gordon


pogo wrote:


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pogo's Avatar (by Gravatar)pogo posted on
March 19, 2006, 7:11 pm
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Re: opinions on automotive power window motors ?

Thanks for the info. Burden's( thanks to MetalHead for that tip!)  is where
I got the data listed below. I went there looking for wheels and discovered
the window motors for cheap price, which led to my post here.

Thanks again !



botgeek's Avatar (by Gravatar)botgeek posted on
March 19, 2006, 8:37 pm
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Re: opinions on automotive power window motors ?

Mount 3 bolt on 80mm B.C
Probably means mount uses 3 bolts for mounting on 80mm Bolt Centers.

pogo wrote:


Phil Kempster's Avatar (by Gravatar)Phil Kempster posted on
March 19, 2006, 10:04 pm
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Re: opinions on automotive power window motors ?


B.C. means "Between Centres". I'd imagine the holes are at the corners
of an 80mm triangle. And, yes I _did_ spell it right ;-)
Phil



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pogo's Avatar (by Gravatar)pogo posted on
March 19, 2006, 11:10 pm
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Re: opinions on automotive power window motors ?


You Da Man!
Thanks!



eckern@gmail.com's Avatar (by Gravatar)eckern@gmail.com posted on
March 20, 2006, 11:37 am
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Re: opinions on automotive power window motors ?

with pittman, maxon, and other high quality motors available at ~10% of
retail prices via various swap meets, ebay, etc. i don't know why so
many robotics hobbyists insist on using such crap.  i guess they're
more rabid about being "hobbyists" than i am.

in any case, you'll want to measure before you drill your holes.  the
last time i read something like that on a motor datasheet it actually
meant 3 bolts 120 degrees apart on an 80mm diameter circle, *not* 80mm
between centers.

chris


mlw's Avatar (by Gravatar)mlw posted on
March 20, 2006, 12:30 pm
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Re: opinions on automotive power window motors ?



For me, I like to know I can get spare parts at reasonable prices. Getting
one-off motors at a swap meet scares me a bit. I know it is irrational, but
hey, people believe in "Intelligent Design" too.


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