A strange electric motor
ฝัง
- เผยแพร่เมื่อ 28 ก.ย. 2024
- Here there are no windings, magnetic fields, magnets, brushes,
but only two bearings connected by a conductor axis.
In this motor the current flows through the first bearing, the axis
conductor and then the second bearing. The electrical contacts
are applied to the outer rings of the bearings.
1. the engine must be started.
2. the motor rotates in either direction.
3. the engine is running both direct current and alternating current.
The power is approximately 3-5 Volts with very strong curre.
(this is basically a short circuit)
"Ball bearing Motor" the current passes through inner race of one side ball bearing , then to the shaft , outer race of other ball bearing , then to inner race , causes a temporally expansion of each ball , deforms it to elliptical and adds pressure between inner & outer race then cause a moment of rotation , for that reason , it needs a prime movement to sustain rotation , by the way it doesn't matter whether the current is DC or AC , it just used to heat up the balls.
Electromagnetism is where I felt in love with physics and now in Science in general. this is art to me!
Me as well!
Shit, home slice. Electrostatics will get you to fall in love with magic. Electromagnetism is so basic in comparison
@@bugabookatzenjammer661YESSIR, I am assuming due to your reference that you're at least partly referring to Dr. Chuck Buhler, the NASA electrostatic's chief expert responsible for the upstart Exodus Propulsion Technologies? He literally figured out a propellantless engine that already slightly exceeds a 1G acceleration curve, not much within an atmosphere, but throw that system in space, with adequate power and well, just do the math, we could make it to Mars in less than a WEEK. Alpha Centauri in less than 8 years. All thanks to... ELECTROSTATICS!
Excellent video. Amazing how long that flywheel keeps the shaft spinning when power is disconnected.
electronicsNmore Many minutes.
Flywheels are very useful. I found a few at the dump, so I will be experimenting with different sizes on my 40W homemade crank generator with supercapacitor bank.
hi did u r bearing motor worked
Srx.tinta
Seems to be an induction motor. The current running through the bearings will most likely ruin them due to arcing between the race and balls.
what if you used journey bearings?
@@matthijsjanse3275 journal*
This is the best motor/rotor I have ever seen!!
Brilliant video. Never thought that this was possible
Its works on Induction motor Principle
@@shivaprabhu3204 This is not an induction motor.
This motor is based on magnetostriction. The ball bearings undergo a shape change as the electric current is passed through them. Since the ball bearings are in point contact with both inner and outer race of the ball bearing itself. The motor, once started by hand will allow this alternating shape-change to force the rotor to rotate. Eventually the steel balls hard and polished surfaces will degrade due electro-erosion and the point contacts will be reduced thereby resulting in slowing down and eventually coming to a stop. It’s a laboratory curiosity and has no use in the real world.
I wanna see what happens when a bearing seizes with that mass turning at that RPM.
That would be fun. ;-)
lots of glowing metal, smoke, and sparks :D
This is an Induction motor Robert sir, the high voltage choke is inducing eddy current in the metal rotor 🙂.
Sounds like the bearings need some graphite lubrication on them.
+Ortorea Screenname u have a fascinating face
The main advantage of graphite is it can be a dry lubrication and does not drag as much on the bearings, having tried silicon grease and seen heat dry it out it can set like glue. WD40 for example increases in viscosity as it dries out and becomes like glue and can cause a lot of drag as it dries out. But Graphite behaves in a different way as it can be both wet or dry lubrication. Provided the graphite is not suspended in a silicone based liquid that is. I would suggest experimenting with various types of lubrication as I have tried many on my large house fan as it was prone to seize up or squeal at me due to heat from the motor.
Put an airline on each bearing this will keep the bearings cool, and use a graphite, copper Grease.
It's a single phase a.c. induction motor. The current in the rotor shaft and in the rotor itself is unimportant. The current on each side, going up from the connector to the bearing and down from the other bearing to the other connector creates a horizontal magnetic field tangential to the rotor. Eddy currents induced in the rotor cause the rotation. It will run either way.
Thank you for a good explanation.
Incorrect. This motor can also run off of DC. This motor works off of the thermal expansion of the balls in the bearing. www.physics.princeton.edu/~mcdonald/examples/motor.pdf
Try making it work with a flame, like a welding torch, to heat the bearings. It won't.
OK Then where are the coils?
I'm sorry? did you even read the article you linked?
it works based on a minute magnetic force from two contacting conductors.
I should add a few points: First, I like it. It's a great demonstration of induction motors. Second, if you replaced the heavy copper mountings on either side of the rotor with two coils and passed a current through them instead, you would have something very similar to a regular 2-pole induction motor. No need to make the current go through the rotor spindle. Adding some shorted coils next to the main coils would produce the "shaded pole" effect and the motor would self start. I'll try it and post the video. Or you could do that yourself....
Ball bearing motor works due to heat in the ball bearings ! It is just a simple STerling heat engine this way, but the effiiciency is low...
Stefan Marinov has presented this years agó !
Regards, Stefan.
basically, moving charges produces magnetic field!!!
the rotation is caused by the bearings , the arc makes them grow , this distortion is complementary to the rotation
The distortion is tangential to the rotation. Complimentary described acute angles that add up to 90° which doesn't make sense.
Rýán Túçk oh bullshit wise ass, you are so full of crap, i got this statment from a book i own that was written by electrcal and mechanical engineers on exotic batteries and motors and how the fuck do you get off telling me the distortion is tangential to rotation? also com·ple·men·ta·ry
ˌkämpləˈment(ə)rē/Submit
adjective
1.
combining in such a way as to enhance or emphasize the qualities of each other or another. so there you have it wise ass
also not all bearings do this witch eliminates the magnetic field theory
Steve Blount yep loving Jesus doesn't make you a push over or a saint , whats your excuse steve. i do get way to defensive id be a fool to argue that, i got mad because he does not no what he is talking about and yet here he is telling me how things are. in the mean time thanks for your support and joining him in are argument you are both cut from the same cloth i presume and maybe thats why you hate me so much, have a nice day atheist shit bags
I don't think it has anything to do with heat. It is either the torque on the electrostatic dipoles of the balls in the field between the two charged outer rings (when the balls spin their dipole moment is slightly offset from the radial direction due to the charges requiring some finite amount of time to rearrange) or it is because of the magnetic forces between the currents through the balls and that through the outer ring. All of the theories can be proven easily by changing some parameters and doing some measurements on the system.
This is Stefan Marinov's ball bearing engine...
This is very interesting. I get the feeling that the current going through the bearings may be where the rotation force is created, the ball bearings being charged, and reacting to the bearing races? With that in mind., I would like to try this without the center flywheel to see if it still rotates the shaft. All in all, it is pretty amazing.
Without flywheel it takes little couple ..
You came the closest to what I think is happening. Heat is the effect, magnetism is the cause. I was watching the mayan engine. It showed a magnet cut on a 45* angle on the N and S ends. Inbetween two parallel South sided facing magnets. The 45* angle magnet slid off rapidly to the side. If the 45* angle magnet was the ballbearing and the race and outer ring were the S facing magnets then, this is why the motor rotates. Not heat which would slow the motor down until it seizes. Car engines have starters, we used to crank cars over by hand.
Very nice build.
Bill
Pirate Labs Thanks Bill :)
Put some magnets on the flywheel moving past coils for another way, also if you attach an electric motor to the generator shaft to create the intermittent start up power supply with capacitors. Just a thought
dont focus to the metal disk. its about ball bearing.
as mentioned the contact patch on the balls expands as it heats up from current. No preload needed just the weight of the assembly on the balls is sufficient.
Hi. I noticed in this vid you kept switching the device on-and-off......on-and-off.....on-and-off.
What would happen to it if you just kept the power on?
Would it spin up so fast that it would fly apart or melt the bearings or something like that?
Nice little demo though. :-)
Thanxx for showing,
-BoomBoxDeluxe.
Imaging this on a bike or 1 man vehicle. Pump up the RPMs in one direction, then use a lever to change the flywheels direction quick (like putting your car in gear) and ZOOM! Then you can charge it up every time you stop, or have some low amperage unit keeping it spinning as your go. I think it's so practical and could easily be implemented in a gas combustion system as to not disturb the powers that be.
because high current is technically simply passing through a conductor, there must be a magnetic field present. You pass current through a straight wire and the field will rotate at 90 degrees of course. the question is what makes the rotor spin lol. what is the created magnetic field in the shaft interacting with.. I have to assume lorentz force is working here and somehow either each bearing and each end of the shaft, or something else is creating a field as well.
The bearings are either having an electro-magnetic charge as a result of the copper around them with the electric charge or the bearings themselve are homemade with the magnetic spheres. You aren't getting one over that easy. Clever set up though.
I doubt it's bearing expansion.
yes, the heat creates the ball expansion in the bearings
Some electromagnetic circuit can be placed in base plate
This is nothing more than a Thermokinetic Motor. They were invented many years ago. They are not really Electric or Electromagentic motors at all. The AC or DC currrent is a convenient way to heat up the bearings to produce torque.
+Jeffrey314159 Yes ;)
Does it mean, that such a motor with smaller bearings should rotate faster?
More or less..
+Electric Experiments Roobert33 are they more powerful than dc or ac motors?
+SMOKER I think they are too unreliable...
In my opinion, the flywheel is axially magnetized. Current can be either direct or alternating. When current flows through the two bearings supporting the shaft, the balls become conductive rods in the magnetic field and the balls are pushed in the same direction, so the shaft rotates. The direction of shaft rotation, with AC depends on the direction of the axial magnetic field of the flywheel, with DC depends on the direction of the current and the direction of the axial magnetic field of the flywheel.
Should implement this to something like a road bicycle. The switch being some sort of throttle, and only working when you've already got momentum.
interesting but the rings on the inside are magnets right and the outer rings are metal so when you run a current across them an apposing magnetic flux is created and the Motor spins.. simple but realy cool motor. you can also generate power by spinning the rotor.
any time you short a electrical field you create a scalar torsion, maxwell /heavyside on Lorentz transormations
see col tom bearden, you can think in terms that this is the oppisit of a tesla coil
you can watch welding cable "Jump" from these forces
I knew about homopolar motors but this is more like where the earths magnetic field is
charged by the sun (not iron core thats just silly)
+Bill Russell why do people keep endorsing bearden? it's not hard to look refutations of his mathemathical rantings on google and find what appear to be solid refutations of his apparent nonsense talk. he's a true weirdo
scalar fields are a fact apart from bearden
you need to up your game, scalar shorting is exactly how a tesla coil works, we would not have high voltage spark plugs were it not for scalar sum shorting, same thing for magneto's were the magnetic moment is shorted as inductive field
and it is what propels a rail gun. dead short
of capacitive potential
public education at its finest
disrespect the more knowledgeable and the
tougher, To have science spoon fed to you
go duck yourself public school boy
+Bill Russell - Sadly this is the norm in most schools today. Common Core at it's best -
First Clown:
A pestilence on him for a mad rogue! 'a pour'd a flagon
of Rhenish on my head once. This same skull, sir, was, sir,
Yorick's skull, the King's jester.
Hamlet:
This? [Takes the skull]
First Clown:
E'en that.
Hamlet:
Alas, poor Yorick! I knew him, Horatio, a fellow of infinite
jest, of most excellent fancy. He hath bore me on his back a
thousand times, and now how abhorr'd in my imagination it is!
My gorge rises at it.
Hamlet Act 5, scene 1, 179-188
Good and beautiful, but it would be preferable if you wrote some explanation for us, measuring the bearing, for example, how many amperes did it consume to rotate, and what were you doing with the switch, were you just disconnecting the electricity? And then you get it? . The video is very important, thanks
To be clear the contact at the bearing is still engaged to the input current from the source you just add the field to the shaft too while the insulator on the bearing ID prevents the arcing.
The current flows through the shaft & flywheel while the magnetic field surrounds and spins around both, but centrifugal force of rotation will also tend to throw off electrons, possibly interacting with the field, kinda' like the Searl disk. Why not spin it vertically with some outboard magnets and see if it takes off!
Very cool video. It's sad that some who have knowledge try to deter those who are seeking. Not every one can go to college or wrap they heads around formula and equation, but I tell you many who invent and improve the quality of life were not scholars at first but just curious minds. Anyone with a brain can understand that in a "breeze" bro!
You are right mate, scholars are in so much detail and some times they don't see the bigger picture.
The most Brilliant Mind were Murdered in the ROYAL ACADEMY MATH FISICS IN INGLAND CAUSE OF COLOR. RAMANUJAN look him up in youtube
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i think because of the bearing it rotates so smoothly and it lessen the force that can interact to stop the iron flywhell to rotate. its kinda first law of motion.it stay in motion unless their is an unbalance force acting on, causing it to stop.
The flywheel is likely made of "soft iron" (easily magnetized and demagnetized). The alternating current magnetizes the iron, which then interacts with the field from the circuit. This also applies to your other video with the washing machine motor.
Alternating current does not magnetize... Direct current magnetizes...
Landotter1 Actually alternating current does magnetize. This is how the principle of induction works. The difference between an AC magnetic field and a DC magnetic field is that the AC magnetic field's poles are oscillating at the frequency of the signal, whereas the DC magnetic field's poles do not oscillate at all.
Landotter1
Explain how a an AC solenoid works then?
AC can magnetize.
your explanation doesnt explain why this wotor works with DC currents.
AC DEMAGNRTIZES not magnetizes. DC magnetizes iron
The bearings are screaming !!! , you may use another type of bearing that has plastic from both sides ... there is grease inside it , you can put two of them each side the rotor if you want .
Regards
Yes a bit strange. Nice presentation once again sir.
The Motorless Motor!
Anything that generates kinetic activity can be called a motor
What about it, Kyle?
Not exactly, Jeff. Our muscles do that but they're not motors. The wind does that but it's not a motor. Gravity, a lot of things.
You should make a follow up video for everyone and disconnect the power supply. ;)
With the wheel turning it creates its own electric field so keeps spinning .
you video is beautiful, love the simple and clean idea you have .
I have to go see my family doctor now. My brain hurts.
Sigh. If only people could *see* electric and magnetic fields these things would be mundane and obvious. No magic, just physics.
Certainly that is physical.
if only we could get half the fat kids off the couch to even try this mundane and obvious physics, life would be a thousand times better.
besides, I don't think baking brownies is that much more magical, still doesn't stop me from making them. ^^
Electric current heats a bearing and changed it shape which makes this drive running. The problem is that it can not run for long and the question is about efficiency.
I doubt those bearing will hold very long with them running dry like that.
Jacobus Hough In fact, they only last a few minutes :)
Electric Experiments Roobert33 so why don't you apply some drops of oil to them?
RadimentriX Right question; the oil is an insulator and impedes the flow of current, therefore it rotates very little.
Electric Experiments Roobert33
hmm, too bad :< doesn't something like "conductive oil" or another conductive lubricant (with little resistance) exist yet?
RadimentriX Maybe the fat graphite is a conductor can be good, but I have not tried it
Incidently, the first mechanical motor to employ Electric Force was not invented by Faraday, for his used an electromagnetic field to induce motion. In Benjamin Franklin's day he had made a rotory motor that was propelled by electrostatic fields. He even invented a practical application: a device that warned of an impending lightening strike on your house!
Called a homopolar motor.
Principal is the same with 90 degree gyro effect. When we push a rotating mass like rotating electric motor, push direction gives effect in 90 degree angle to axial.
In this example ‘short circuit’ gives a way out by that gap or 90 degree gyro effect; but changing the electron axial direction itself. Actually good QM experiment…
Drum mass doesn’t change the power a same mass but wider and thinner drum would give more power because of momentum distance.
It is a funny experiment and giving a clue about why 90 degree. It is actually two times 45 degree in duality…
You see why in this video; of course the purpose of the video is not this experiment but you can get the clue.
The Double-Slit Experiment is SOLVED
ball bearing motor, swells the ball bearings to push the rotor through high current.
+Gareth Compton Nope!
Correct me if I am wrong, high current (little to no resistance) draws a whole lot of current to the motor, especially if it is metal. Also the efficiency would matter as well because that determines how much heat (aka swelling) occurs to the bearings. There is a TH-cam video explaining this principle. If you start it without it spinning, it will still swell but damage the bearing whereas you have to spin It for it to swell and push it to rotate.
+RyuDarragh I'm no expert but I agree. for the thermal explanation to work the bearing would need to be preloaded. the rollers are so small even if the localized heat was absurdly higher than then rest of the bearing but under the melting point and the rest of the ball fell back to room temperature instantaneously as it was rolling you'd still be measuring the expansion in microns. these motors are still running as the bearings are failing. I could imagine a motor that did run on heat like this but it would need to be larger with either tapered roller bearings and an anti backlash device or bearings that are interference fit.
your explanation made my balls swell too. NO HOMOpolar motor
no wonder i feel anally raped paying my bills
Cool. Have you measured the current? RPM? You left the power on for only a few seconds at a time. If powered for a while longer, will it continue to accelerate or does it stabilize at about the RPM shown in the video?
Philippe Jacquot Yes, makes sense.
Bello! Il motore a corto circuito
I have never before heard of this kind of motor. My guess is that the force required to maintain rotation originates from tiny sparks jumping from the ball bearings running in the ball race.
i remember my grandfather had a compressor and you had to spin the wheel then hit the switch to start it up then you had to throw the belt on it. sounds funny now looking back but it was the best big compressor i have seen to this day even! good job i want build something a bit more sophisticated i think.
is there a reason why you dont let it ,ax out its rpm ? its frustrating to watch
Nice homopolar motor. Lorentz Force in action. Best example I’ve seen yet. All the others I have seen create to much heat from tiny arcing to spin fast. Thanks.
It´s based on the unipolar effect (Otto Schulz, Leipzig 1908)
This seams like it should not be working, it would be cool / enlightening to see a test that shows him applying power directly to the shaft bypassing the bearings, and then passing the current normally threw the bearings. If the former stills creates the same 'motor' effect then we can rule out OP's hypothesis that it is expansion and contraction in the bearings caused by the current that is driving the motor.
The bearings heat up. Because the connection is better on the bottom because of the weight of the rotor the heating/expansion is uneven which gives the rotation.
+Richard Harris Nope!
+Richard Harris 15/03/2014
th-cam.com/video/f1xnQ9gWy1o/w-d-xo.html
Roobert33
The rotation is created by means of thermal expansion of the bearings as I said - more or less.
+Richard Harris more or less as well as I have said many times ;)
Sorry yes this is a well known mechanical effect.
the copper straps holding the ball bearings must disperse the heat, but even so you wouldn't be able to run to long, even with better heat sinks
Its can't be similar to a homopolar motor if there is no magnet involved, my best guess is that it has something to so with the dynamo motor.
Here's an idea. Since its the amps in this instance that are doing the work, lower the voltage out to .1 or .01 or something insanely low to reduce the energy consumption to as low as possible. Then use a a magnet the same size as the large weight you have there. Add some coils and see how many watts out you can get vs watts in.
Never know until you experiment. It's how new things are invented.
Try using a stator from like a Honda motorcycle, it is a charging system that one could run a loop Plus and inverter to one side.
I'm going to guess the center rod is generating a strong magnetic field at right angles to the direction of current. Due to the hit and miss action of the bearings transferring the power the balls get dragged along by the fluctuating magnetic field. Just a guess though.
Good thing, that the wheel and the bearings are finely arrange,if not that project would fail because it will shake and disturbs the laws of physics
Not really sure about the reason why this motor works but I do know that AC going through bearings causes fluting. Several companies make a lot of money selling products that reduce / eliminate current passing through bearings. This motor is using the bearings as a conductor so bearing life will be relatively short.
+David Howard Not sure? Could you give me at least one vague reason?
This only has value as a curiosity because most of the energy is wasted as heat but it is interesting.
I think people over think this. The flyweel has a hole in it with a screw to tighten it on to the shaft,thus making the magnetic field stronger ,or weaker when turned by the poles..ie the wire coming closer to the flywheel. And im sure thats why it must have a spin start.
Si lo tocas cuando esta encendido, da calmbre?
Rewound mot would be ideal for this!
What's rewound mot?
Once again an exellent work! Its really strange... I can't understand where the electromagnetic force come from... The midle disk is magnet?
Seems to me basically an homopolar motor in which the external magnetic field is provided by the two "poors" pseudo coil-bearings. When the motor is stalled nothing happens, but when you impress an even little rotation, the current that flow throught the bearing assume a spiral-like path in it, creating just a pseudo-coil. A teacher told me that electric current flow slowly throught conductors, a better reason to me to think that my suppositions are true.Or maybe just the geometry of the bearings with different rotating parts at different speeds and multiple effect-path for the current... I can imagine a sphere dropped in the center of a rotating dish and the path that it creates on it before drop on the ground. More the r.p.m. more the pseudo-coil-turns more the magnetic field more the r.p.m. and over, until the system reaches its "frictional balance". For test my supposition, I'd put an iron bar near the ends of the rotor-bar when the machine is running, to test an eventual magnetic force. Then I'd test this eventual magnetic force at severals rotating speed, including a measure to current and voltage provided the the machine in this steps. I'd try also to eliminate the bearings from the current path, using brushes or something similar, or substitute the ball bearings with brass bushings or similar.
Maybe also be the rotor-bar itself that create the effect,at the same manner of the bearings. Many experiments!! Cheers! :-)
Whats up with the different layers in the wheel? Why the hole in the side of the wheel? Is that 6 volts DC you are putting in to it?
6 Volt AC/DC? At 6 Volt What is Amp taken and what is the speed?
it's nice to see, but you are forgetting that he used the momentum, mass times acceleration, it is logical that with so much speed even after disconnection voltage momentum simply has to spin for a long long time, almost the same speed as the voltage
Explanation below:
The bearings are pressed together in two sides so the bearings are very slight oval. The strong current that goes through the bearings goes through all the balls in the bearing but most of the current goes through the balls that have the lowest resistance which are those that are hardest compressed.
The high current heats mostly only these balls up which in turn make them expand very little but with quite huge force and since the clearance in ball bearings is very small this expansion make the balls push away from the small oval size of the bearing to the bigger side one and thus making a forward momentum which seen here it quite strong.
fairly much the same principle as an arc reactor
Very nice, an interesting conversion from electrical to mechanical energy!
So the bearing beads heat up due to the high current and that causes the rotation?
How fast will that go if you just left the switch on?
The wheel generates a magnetic field around itself?
why not insulate the bearing from the shaft and induce the same current to the shaft itself using a contact the field would be the same and the bearings would not overheat due to the current passing thru the bearing assembly. but still it will have the same pos or neg potential. and it may eliminate the heat problem.
I built one of these motors with a 1000 lb pull magnet and when I put power to it it does not move. I am stumped?
You have to spin the disc, to start
Its Litovchenko AC/DC motor generator. USSR It can work even without metal rotors.
Homopolar motor/generator ? Have you tried spinning this motor with another motor? It should make little voltage but lots of current. I think Homopolar generators were used in processing bauxite ore to get the aluminum.
Oil your bearings, that's what the squeaking sound is.
Guessingthe hole in the fly wheel is for grub screws? Not any magnet to push against current?
This motor could win the record of the world's most inefficient electric motor...perhaps.
There is also one that works like a cumbustion engine but its electric. Pistons are moving in a coil and a mechanical contactor switches the current in the coil so the piston moves in the coil, once it reaches its max position the current is switched of and the piston moves back because its connected to the shaft. And so on...
it's called kinetic , Kinetic energy
In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity
in reverse you can output some electric in which electric car use for charging their battery
Tom Hoehler I have not tried it with the bushings, but I think it does not work.
Notice he does not disconnect the wires while it is running. Which means there is current still running through even though the switch is supposedly turned off.
So.. the nature of current is that it likes to move in a swirling way.
Fascinating little motor. Judging by the noise, the torque is higher at high rpm, but this may be an illusion.
How important is it to have the copper conductor wrapped round the bearings?
What is really going on here?
The copper serves only to dissipate large amounts of heat around the bearings. The movement of the rotor is carried out for a small expansion of the bearings with the current. Or, the theory of "Lorentz force"
Electric Experiments Thank you. Are you saying it is either heat induced expansion OR the Lorentz force, but you are not sure which?
Can you explain how the expansion causes rotation?
Surely the Lorentz force requires a magnetic field?
Tristan Cooper I'm not sure how it rotates, I suppose that it rotates for a small expansion of the bearings, but more than that I do not know.
See my new video yesterday:
"Strange rotation of an electric rotor video 3" Roobert33
the power is loading the wheel with magnetic power. i will bet that the wheel turns magnetic after spinning
Current flow makes a magnetic field. Between the bearing and shaft you have perpendicular fields. I wonder if the flywheel is also a magnet and is there a diode or two in there anywhere?
No magnets, no diode.
"Electric Experiments"Roobert33
You still have the fields of your current flows and in 2 places they are perpendicular.
Do the bearings have an even or odd number of rollers? If an even number, would it still work if the number of rollers were odd? If an odd number would it still work with an even number? Would this unit still function the same if dielectric sparkplug grease was applied to the bearings or if it was submerged in mineral oil?
+Paul Trace It should work under all these circumstances. Maybe not with a thick grease.
Holy crap! That's terrifying!
Why did he never let it get to speed? I would like to see the final speed achievable. It would also be good to have current monitoring.
Is not possible get to the top speed, the bearings will overheat for too much current.
is it a form of tesla iron lag motor, its very basic and similar to this design, iron slightly magnetizes and holds a field till another pulse comes along and causes a force of rotation.
Nice Set Up!
a lot of potential for this type of motor in a generator setup because of high torque and the generator would have to be a high rpm design but eye have a few ideas