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E-Bike Using gear reduction type, Window, Automotive
By coldspot, Section Mechanical Posted on Wed Jan 25, 2006 at 04:00:58 AM MST
wind

After reading a post about WheelChair motors,
The stupid little light over my Head just had to go, "Bling, Bling" !!! LOL.
"gear reduction type", I've got a bunch, (OK just a few, 5-6 maybe), Window Regulator
Motors from wrecked cars, They are all 12 VDC and of course gear reduction type, Have you tried to pick-up a window from a large car lately?? These things have real power!
I collected mine while building a power down-rigger set-up for my boat, got some extra's for adding a sideplanner set-up but am now thinking about my bike?????????
Has anybody tried these for bike power I wonder??

E-Bike Using gear reduction type, Window, Automotive | 14 comments (14 topical)

Re: E-Bike Using gear reduction type, Window, Auto (3.00 / 0) (#1)
by pyrocasto on Tue Jan 24, 2006 at 10:37:15 PM MST

I just cant imagine them being powerful enough for a bike. They are strong but slow, and if you geared it up(small gear on tire or something) then it would stall.

Who knows, give it a try. You also may want to try wiper motors too.

Re: E-Bike Using gear reduction type, Window, Auto (3.00 / 0) (#2)
by nanotech on Wed Jan 25, 2006 at 01:33:16 AM MST

Yeah, I think the only way a window motor would work would be to have it direct drive the chain. In which case it would need one heck of a mounting bracket to hold all that torque!!
__________________________________________
My ship finally came in, but it was the Kobayashi Maru!

Re: E-Bike Using gear reduction type, Window, Auto (3.00 / 0) (#3)
by Nothing40 on Wed Jan 25, 2006 at 08:11:50 AM MST

Some of those motors can be pretty Beefy!
They have to be,to lift the big heavy panes of glass in some cars/trucks.
Most of the ones I've seen have a wormgear on the armature shaft,and a gear sticking out of the side of the case/mounting face..
I replaced one for a friend once,it was a pretty hefty sized motor,and the magnets were mighty strong! The smallish output gear didn't spin all that fast,but it was spinning fairly quickly..I'd imagine there is a good amount of torque available though.

Give it a try,and let us know!

Re: E-Bike Using gear reduction type, Window, Auto (3.00 / 0) (#4)
by coldspot on Wed Jan 25, 2006 at 08:55:16 AM MST

Chris- No offence BUT,
"them being powerful enough for a bike"
You must not have weighted a window from like any car with a large side door.
(I've seen it take two to hold, while a third fastens in place, We are talking about "BodyShop" guys hear, these guys PUSH n Pull all day long, go into any Bodyshop and arm-wres any of them! YES I'm very BIAS from my many years doing and working with these people, as great as they are, I had to figure out an easyer way to make money, I didn't like THAT hard of work, Again NO OFFENCE!)
As far as slow, I Don't think so, part of why I've got extra's, finding ones I liked that didn't rip my Cannon Ball weights up to fast!
They are geared so have a lot of power, so I has thinking to run one to the peddal
sprockets via an extra peddal sprocket, (for free wheeling), using a very small gear.
As far as figuring out for my Bike, All I can say about knowing about Bikes is that they are MUCH harder that I remembered them to be, (Peddeling around), But I can also say that when someone grabs mine they just look at me and say, "wow, you are in great shape". Thats because it is so HEAVY with all the extra's I got on it, and didn't buy a light weight version, has a real steel frame.
Also a couple years back talked to an older fellow at the local laundryMat about his bike, I was looking it over when he came out, (I was wondering about what looked like a very large battery for lights, But smaller than one used for say watercraft/motorcycle) and he told me about the special hub it had in the rear.
He told me to hop on and go for a spin, I did and WOW, that thing zipped right along, Up a fairly large hill, (raised 60' in about half a block), and didn't peddal anyharder than mine an fact was easyer by weighting less. I haven't seen him around any more but don't have to go there either, (Great Girlfriend).
So thats part of why I'm thinking, E-BIKE, (A couple teenaged boys I get visiting rights to have been trying to wear me down for about 9 summers now and if they ever show up with gears on their bikes I'm in for a butt whipping I might not survive, heck two summers ago they, {My youngest sons, then 10 and 12}, raced me uphill at girlfriends cabin on foot, thinking I wasn't beaten bad enough, they then picked up a younger kid each, (about 4 and 6) on their backs to further run my sorry butt into the ground, {My bad hip made it a worthless race to start off, but I DID run about a mile UPHILL, hadn't done that since 84 when hip got broken!}). LOL
O-well, I was just share'n a brain fart I had last night.
I like to build stuff and this site has given me plenty of NEW idea's and many more projects.

Re: E-Bike Using gear reduction type, Window, Auto (3.00 / 0) (#7)
by Bruce S on Wed Jan 25, 2006 at 11:55:36 AM MST

Coldspot;
Couple things. I have been working on cars and trucks for well a long time. Can't make it a business ( DAV says so) but do still tinker.
Here's what I would do, find out what the rating is on those geared motors. This will help you in desgining the battery pack and controlled you'll need. Worm gears are great for torque, but will lose in the speed area, so you'll need to decide on that. Since they already have wiring built in for reverse make sure you account for that as well. The free wheeling should do it, but you should check on the motor by connecting it to power and try turning it in reverse by hand, this will tell you if it's going to work.
The controlling circuit will be the biggest problem as you'll need to have one that will be able to handle the large current these draw. There are a bunch on designs to be had by googling, just think in the high current ranges.
The mph will depend many things, motor speed, gearing and wheel size, but those can be figgured out with just a little math.

One thing though, even those these little tikes can last a long time for windows, they really aren't designed for constant use so you may find that it could die in a short time, just how much time will depend on your usage.

Good luck on this send pics so I'll have an easier time <lol> stealing the idea.

Cheers
Bruce S

[ Parent ]

Re: E-Bike Using gear reduction type, Window, Auto (3.00 / 0) (#8)
by pyrocasto on Wed Jan 25, 2006 at 06:02:53 PM MST

Well considering I can shut my hand in the car windows and it stalls the motor that easily, I didnt figure it would be strong enough.

It all depends on the rating though, so you need to find that out. That would tell you what kind of push you'd get. Personally I wouldnt want anything under 500 watts.

[ Parent ]

Re: E-Bike Using gear reduction type, Window, Auto (3.00 / 0) (#10)
by elvin1949 on Wed Jan 25, 2006 at 08:33:44 PM MST

Mine is 200 watt's 10 mph for 6.5 mile's [level ground]With 7.5 amp/hr battery [gell cell].

Not to bad,OH forgot pull a trailer ALL the time.
later
Elvin

[ Parent ]

Re: E-Bike Using gear reduction type, Window, Auto (3.00 / 0) (#12)
by pyrocasto on Thu Jan 26, 2006 at 09:20:33 PM MST

Lol I guess I'm a "more power" guy as I want to do 20-30 on my hilly roads. :-) Flat land would be great for a e-bike, but I dont have much of it.

I would end up with a 100ah batter on mine. ;-)

[ Parent ]

Re: E-Bike Using gear reduction type, Window, Auto (3.00 / 0) (#13)
by elvin1949 on Thu Jan 26, 2006 at 10:38:27 PM MST

I don't have much flat ground here.
It get's used as a helper on long rides with a load on the trailer.It is 50 mile's round trip to the closest place to buy supplies.the last mile back home is a woollie bugger.Two long steep hill's and i ain't as young as i used to be.

Louisiana is not flat,you are either going UP DOWN are SWIMMING.
later
Elvin

[ Parent ]

Re: E-Bike Using gear reduction type, Window, Auto (3.00 / 0) (#5)
by whatsnext on Wed Jan 25, 2006 at 11:46:29 AM MST

I'm just guessing here but I'm pretty sure those motors use bushings instead of bearings which would make them totally unsuitable for continous running. Window motors really don't run for that much time over the life of a car.
John...

Re: E-Bike Using gear reduction type, Window, Auto (3.00 / 0) (#6)
by whatsnext on Wed Jan 25, 2006 at 11:48:28 AM MST

I see e-scooter replacement motors for sale everywhere in nice sizes like 200,400, and 800 watts and replacement controllers are also for sale. I would look there.
John..

[ Parent ]

Re: E-Bike Using gear reduction type, Window, Auto (3.00 / 0) (#9)
by Don Cackleberrycreations on Wed Jan 25, 2006 at 06:16:07 PM MST

The current draw is not at all effcient either for a bike drive a wiper motor would be a better idea yet I would bet it would still fall far short of expectations.
They do use them for some pretty unspeakable things though.
I use a wiper motor on a powered roman candle rack it works well and gives a nice effect .
poor unedekated redneck with attitude

Re: E-Bike Using gear reduction type, Window, Auto (3.00 / 0) (#11)
by coldspot on Thu Jan 26, 2006 at 04:45:23 PM MST

Yea, I played with em today.
Just another Brain fart! ;)
I do have a 24VDC 1630Rpm servo motor
Or maybe the 2.5HP 120 VDC 7100 Rpm treadmill motor and speed controller combo?

I have planned all along on using the speed controller from a treadmill I parted out.
I'm still eary in on this and still need to figure out the speed controller,
this thing had all the bells n chit on it, so i might even be able to hook up the heart monitor via thumbprint thingy it had. But controller has large heatsink, (5"x8")just quess'n.
I'd rather use these as windmills but time will tell.

Re: E-Bike Using gear reduction type, Window, Auto (3.00 / 0) (#14)
by scottsAI on Sat Jan 28, 2006 at 12:17:15 AM MST

Window motors are a reluctance motor.
Large internal impedance. (For a motor.)
Designed to handle long stalling of the motor.
People hold the switch on, other motors would burn up or require protection circuitry.

The worm gear will prevent regenerative braking. Power goes out, can't go back in.
Develops good torque, useful for may things, not continuous duty.
Not an efficient motor, gets warm fast.
Scott.

[ Parent ]

E-Bike Using gear reduction type, Window, Automotive | 14 comments (14 topical)

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