The Design of Train Wheels is Genius  

Exactly my thoughts lmao

Same.

Agreed

Bikes work in a different way but also self align just like train wheels

Me too

1880ish: let’s make them out of paper!

how would they brake or stop? this wheel is dangerous.

@@Hindu9054 what was 3d printed was a dramatisation they look like the flanged one except they're slightly curved and then disk brakes or whatever blahblah

@@Hindu9054maybe that +the high weight and speed is why it takes a train a mile to break

point@@novas-requiem

not the point of the design, and it does not matter as much as you think

​@@nikoraasu6929 yeah, because trains have wheels on two sides..

@@nikoraasu6929 Thank you for demonstrating how to be completely unlikable.

@@seigeengine thank you for i dont give s shit

@@nikoraasu6929 womp womp 💀

Indeed : D

When was the last time you went on a bumpy ride like it would be if the wheels would actually look like that? Can't you see the wheels bouncing? The secret is in the tracks,and the angle the wheels turn

Learning more then school tbh

​@@Hazzy_1x couldn't agree more 😂

It's like the saying: "You learn new things everyday" ✨

Occam's razor

Then please explain the BMW engine

@@cammourer8246 yeah I'm good thanks

​@@cammourer8246are they the best? Don't think so.

@@shira_yone what are you on about? The BMW is a mediocre engine that is over engineered because German engineers like fucking over mechanics.

Ya maybe this is the model for another country? 🤔

Wyd if I jump in front and u don’t have enough time to stop

He is not taking into consideration the wheel trucks. But what do I know I'm only track maintenance.

I can confirm that train conductors, in my country, are mostly on strike.

​@@kadamseth3817My uncle is a train conductor. A man stood in the middle of the tracks and he didn't have enough time so he splattered the man. My uncle is still haunted by that to this day.

😂and add it to revenue.

​@@leveluxtorduChad pfp

@@leveluxtorduAlways one of you in an upload. “AcKtChUaaLly….” 🥴 Nobody asked.

@@Kyle_402 i asked

​@@Kyle_402so i guess you just enjoy misinformation?😮

​@tryagain5410 nothing wrong with a correction

Bru I thought it was background music😂

That’s called a 3D printer doing it’s thing

Bambu lab has transformed many studios into wind tunnels 😊.

or many 3d printers

lol

Yea,i was going to say that. They are on a swivel and train wheels do not look like the video.

Not necessarily. Plenty cars on just two axels.

@@ImGoingSupersonicHe says it is exaggerated. Train wheels exactly look like this.

It does, the reason it doesn't work in this video is because the flange doesn't touch the tracks, if it did, The train will turn without a problem

@@yup7242On trains the flanges do not touch the rails. They only do so occasionally. If they would touch the rail continuously, both the rail and the wheel would wear out pretty fast.

Never thought anyone could make train wheels interesting to me, dude did a great job

love that he printed out the uneven dumbbell wheel for the explanation. I’ve seen this explained a few times and while that prop isn’t necessary for most to understand, it sure is damn clear

Modern version of those 1950s educational videos!

The mom realistic Examples

Good Idea without results//// Well The cone wouldn't be able to bear the weight of the train. And Compared to train width the cone width is too narrow.

The most important vehicle created is the Bicycle.

@@supertuesday600 not really, I'd think of a bicycle as just a combination of a cart and an improvement of walking. It only transforms an already pretty common modes of transport. Trains on the other hand were the first to be a practical application of artificial (non-biological) power applied to land transportation. They are still the best in that regard provided there is infrastructure in place. IMO an ideal world would only have just permutations of: - walking - cycling - trains - boats / ships cars and planes would only be used in specialized application: cars for rural areas, planes for high speed (eg. organ transplants, etc).

@@VulpineCortex You might as well say trains are giant carts in wheels and giant steam kettle which are very common too when trains were invented

I think semiconductor is even more amazing

​@@VulpineCortexa world with almost no cars and planes? Here comes the ecofascism!!

Shut up

Watch Practical Engineering. Longer, better video explaining. His channel is great

Same 😂

Except the middle bar wobbles. Creating a very shakey ride.

Was the question "what's a flange?"

That sounds like a great moment to have. How fun.

Go to school

@shizuxo I'm I'm school fir someone completely unrelated for a reason

@@shizuxo I mean schools aren't usually teaching about the wheel design of trains (unless you are going to college for engineering that sort of thing).

​@@shizuxoi learn this when i as a kid in middle school playing alone with my wheel like watermelon skin along the road edges. Well Guess there's no need for extensive learning to know such thing😕

idk maybe u didnt think about it

They do but not for the reason he’s portraying

To overcome that issue compartments of the train can be provided with very good suspensions for the jerky movements.

As a train, I'm insulted.

Ever see a motorcycle when the front wheel starts wobbling?

​@@operatord4s118what reasons?

Yes. You can literally see the wheel becomes 'wiggly' when moving through straight track, this is called hunting motion. And the design of railway vehicle must consider this as the speed limit. 😅

Okay, now do a high speed magnetic train. Lol the USA is the only first world western nation that still uses this outdated system

But the small contact area of ​​the wheels and rails also affects the strength of the brakes, it also placing the center of weight right in the middle of the rail so it can damage the rails more quickly, the limited area of ​​surface contact is also can cause serious problems just because the rail sections are not smooth, so the rails inner side require more maintenance for the train operations.

My brother in Christ we didn’t get bombed. Also our country is the size of multiple European countries. We were prob busy defending the free world, making blockbuster films, medical breakthroughs and putting a man on the moon.

We had trains, then we tore up the tracks for cars@@liammadden7572

yes, also, the passenger will all become a liquid at the end of the ride, the train shake them a little too hard

@@jensenraylight8011exactement. Complètement ridicule.

You forgot that the wobbling can derail the train.

But this "GENIUS" invention is "GENIOUS"

is it also one of the principles for like belt drive gears as well?

Looking at you, Mr. Forman.

As an engineer, I know I have annoyed my family and many occasions, but hopefully I’ve done some good along the way too.

I wish to do the same

@@trevorhegstrom2816yooo 😮

Lmao best comment I've seen in weeks

I was just watching a show yesterday and wondered how trains actually take turns? My logic was the flange to stop it derailing but that's where I stopped, seeing this now I'm so intrigued

Track are turning very slow simply. You never saw damn train? They don't have cones instead of fkin wheels, they just driving slower and tracks are as straight as poaible

​@@thespectre01 Your reasoning you mean. Logic doesn't change from person to person, it works one way and one way only. It is also a learned subject, the vast majority of people never once look into what logic is, and how it works. Yet so many people claim to be logical... 🤦🏼‍♂️

@@WhoThisMonkey logic isn't just one way my friend. Depending on several factors. Logic alters itself greatly, it takes many forms. I don't mean to be argumentative of course, I'm just informing you that picturing logic as just One Set Way is in itself, Hilariously....illogical

@@18nwkas stated in the video, the cones are an exaggeration of actual train wheels. But actual train wheels are small towards the outside and larger towards the inside This allows them to slightly shift in the way the cones demonstrate in the video. just to a much lesser degree.

The difference is that the wheels were designed for the tracks of the bullet trains, tracks that were built solely for those passenger trains. American rail wheels have to be able to negotiate tight industrial sidings as well as wide, smooth curves

I was today's old when I learnt this!😳😳😳😳👍👍👍

Life, is roblox

@@suspicioussand You earned 500 gold

Before I read this, I basically came to the same conclusion. Unless a mechanism is created to balance out both sides so that when one side goes down and the other side goes up, then going at high speed the train would wovel. Something would need to be created that would need to keep the train leveled as one side rises and the other side lowers. Kind like how those camera accessories they have now, where no matter if it's lowered or turned, the camera always remains straight forward and leveled

already knew this

Complete lies.

Copied from Practical Engineering

​@@aruprishi8111🤧 well he's still not hurting him in anyway

​@@aruprishi8111I also saw Grady's video, but are we really sure that this short is a copy? Look at the dates

Nah

^^bot

@@matttzzz2 Yah

@@justind4615 Wah?

wa wa wa

The geometry splits the track?

​@Kris-fd9xs he kinda butchered the explanation. What he means is since the flange is on the inside of the rails if the car tips in a turn and sit on only outer wheels it stays in the rails. If we put the flange on the outside of the rail it will just slide off in the same situation. But in reality the purpose of putting the flange on the inside was mainly just that it's easier to make switches. Just think how the hell you'd make a switch otherwise.

I meant the geometry of the wheels as a whole. The load being centered is more of a function of the taper of the wheels than the position of the flange. The reaction force of the wheels is upward and inward toward the center. If the wheels were flipped inside out, the same forces would be upward and outward. The train would always be pulled to one side of the tracks or the other instead of the reaction forces of each side pushing toward each other in the middle.

Not only that, but the wheels would turn at exactly the wrong speed. The outer wheels would turn too slow and the inner wheels would turn too fast. The opposite should be true; outer wheels would rotate faster (larger surface area, same time to rotate, larger circumference/second, more linear momentum/second) and the inner wheels would rotate slower (smaller surface area, opposite explanation.)

Thankfully no, as the suspension for the bogies does good work, the wheels are not nearly as sloped, and the turns are much broader and smoother than they appear in this video.

A kid once asked me how it comes that the train shakes so much. Other than wind and tracks changes I had no real answer. Now if I ever get asked again, I know more thx. woops I didn't mean to comment on another comment haha Anyway thx for the later explanation!! To give some more context, we were in a day care situation with many kids who loved to talk about our travel that day while sitting in a train. That one kid however was suddenly frightened of the trains movement and thought it was super unsafe. I explained that even if the wind partly caused the shaking it is perfectly safe to use the train. It is much safer than us driving by car and so on. I think a more exact and informed explanation would have calmed her down more. It was important that she felt a little more ok with the situation since a few younger kids became anxious after she said that taking the train is unsafe, it might just derail like that. After making sure everyone knew that wouldn't happen right now, I just went on asking them about how excited they were for the trip. So their lil heads would be occupied with something else other than everyone dying.

​@@konfettikopfbruh

It’s called autism

@@konfettikopfafter a while the wheels on these trains are no longer smoothen, they are slightly flat on some angles. So thats why you can feel some bumps, and aswell as the fact that the tracks might be already worn out

Autism

What is that speed limit?

It’s called Harmonic rock and in 20 years as a railroader, I’ve never seen it.

freight trains can do it at very slow speeds on old rickety track, too. But how much faster than 300+ MPH do you want to go?

Speed limit will be based on train track build quality

Theoretically yes, practically this almost never happens unless the track is already falling apart.

Yes. There are longer YT videos on this but the ,3d printing makes it cute and so is value enhanced rather than the short which is just the standard rip-off short on yt

When they're real, yeah. But it's very easy to find videos spreading misinformation on YT Shorts.

@@rainbs2nd957 like this one?? ^^ this is not the real shape of train wheel. if it would, you would fly around. trains have axes with 2x2 wheels and these are able to rotate.

​@@janpatzold1347 this is real. Train wheels are tapered they don't rotate on an axis as you're suggesting. Yes they aren't a cone but the video is demonstrating the effect of the tapering.

@@OrigIswed yes they are tapered but if you google for train axis you see what i mean

Same

I believe it is pronounced silicone

@@CyberKnightX21lmaoo 😭💀

@@CyberKnightX21 do not speak to me or my family ever again

@@CyberKnightX21 😂😂😂😂

Of course, all rail curves are spiral curves as well.

​@@jeffhill2355what does that mean? Like the rails do a corkscrew twist whenever they turn? I'm not understanding. Clarify? Peas & carrots!

Not fun to be a part of a derailment though lol

Working in the FMO rn, everything I've heard about the shops is they're slave houses lol

I was gonna say...😂

I worked on the tracks around Oxford in the early 90s, i used to wonder why the train wheels were not flat when i'd see the tracks worn on the insides.

@@lawrencemitchell3024 because it involves a lot more than just that. New braking system with cone wheel..(explain that1) Plus suspension is a major problem with these. Watch the middle bar. It will eventully rattle anything its attached to apart.

*nunyu buz* "...can say this:"

Hate to be that guy but trains don't have differentials. The wheels are on a fixed axle but the shape is designed in a way it acts as a differential does. Allowing wheels to spin at different speeds. Cars on the other hand do have differentials because the wheels are the same size it just needs the same effect for turning and the differential does that

Pretty sure it's NOT a differential. I get what you're saying, but cleverly designed wheels /= differential. As the other person stated, the differential is the mechanism that makes the wheels spin at different speeds to turn, trains do not do this, and don't have differentials. For anyone else reading this. Your car has a differential, and if it's a 4x4, it has two differentials. The differentials change how fast each wheel spins, so you can turn smoothly. If you turn left, the left wheels on your vehicle have to travel much less ground, than the wheels on the right, so the wheels on the right rotate FASTER than the left wheels. If your wheels rotated at the same speed while you turned, it would be hard to control, your axle would be under immense stress, and could snap, and you could skid off of the road. You'd have to slow down SIGNIFICANTLY to make any turns at all.

@@DearLilBunBun A 4x4 may have three differentials.

@@rougezeus2154 thanks for the clarification. I had differential in quotes, but that might not have made it clear. I’ve edited the comment based on your feedback. Thanks! 🙂

Nope, not the same.

What is there to know about switches? It's basically one is a curved track and the other is straight, two pieces of track move closing the gap depending on the lined track. The frog isn't that complicated either it's just a piece of two tracks with a little piece cut out for the flange way

@@Nordkampf Just thought it'd be interesting to see it explained in the same way. Frogs, guard rails and wing rails and specially crossing noses that can move or maybe four-way switches.

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-_M6vhDvmtrI.htmlsi=y0It4dtL_1s4_SZI

Train wheels irl look like the one with flanges because they don’t go on turns like that one and would derail at anything about 2 centremeters per year

The train hovers over switches 😂

No, but it is for the reason that the wheels are not extremely conical, and also the fact that the train would no doubt obliterate the rails if it was on a turn as narrow as on a road (rail wear and tear, it happens commonly at bends, and a sharper bend means more wear on average.)

I like trains...

Who is Sheldon?

​@@ninthcloud6331A nerd of Comic book

They're giant beautiful beasts of steel. Theyll be in the fossil record for eons to come.

@@ninthcloud6331 just a wierdo who lives in Pasadena, California.

I will inform my uncle Chris of your thanks

Thanks

That's what they get paid for after all

@@JustRememberWhoYoureWorkingFor That is a very unthinking reply. My respect is not that they DO. It's that they CAN. Money has NOTHING to do with it. Scammers get paid, but their contribution to anyone else is zero. It's the brain to work these things out in the first place is what I respect. Can YOU?

Well, in practice I don’t think it would work as well. Hell, why take a car when you could just hijack a real train? They have better efficiency, are more durable, are already able to carry many many times their own weight, and are probably not anyone else’s go-to option, so no competition. Hell, you could bring the car with you if you got it into a train car, wheels and all.

Same.

Me too

The flanges are there more to keep it from coming off the tracks if it hits the end of the cone (which it can do) otherwise it’s mostly the conical wheels doing the work

You will be shaking in your train

@@user-ht5px5uu1w The bogies have suspension systems, and the wheels are not as exaggerated, and the turns are not nearly as sharp.

why? truly think about every moment of your life that didn't allow you to know this.

@@mhm6me not wondering how train wheels work?

@@mhm6 without being prompted, why would anybody even think to give it any consideration?

the average person does not know this. if you took a model of all 3 of these designs and asked people which ones were trail wheels, they would probably choose the flanged option or the first regular wheels. who knows anything about trains besides mechanics, conductors, and enthusiast's? Most people dont even know about car wheels and they drive them everyday.

@@mhm6 The real ignorant ones are those who shame others for expanding on their own knowledge. Knowing this doesn't make you any more of a person than @deltablaze77 . In fact, attempting to shame him on not knowing prior to this video makes you less. Truly think about every moment of typing that comment, and reflect on your actions. You clown.

This is all basically just stolen from that video.

I came here to say this too

Aren't they known as "Lesics" now?

omg I remember that too, it was super fun

There's also one in japan, In Omiya, Saitama. The train museum is huge, with a lot of old retired trains and several bullet trains. You can also see the trains and bullet trains going in or out of omiya station. But, this was one of my favorite of the entire museum. i spent a whole hour there once.

Used to love York train museum!

England is so small that 3 people from it had the same experience

Can confirm that I am in close proximity to York right now, but have never had the memorable experience of the York train museum cone wheel rail demonstration… yet

Maintainers keep the world running.

I’m a Carman and seen some wheels in really bad shape has you wondering how some of these trains haven’t derailed lol

This was actually made before practical engineerings video came out. But the timing definitely is funny

Was thinking the same thing :D

@@OleBrouer I had to check the publish dates because I was thinking wtf. This checks out tho.

​@@OleBrouerPractical Eng releases first on nebula so that is not true

Not sure if this is copyright infringement lol. I saw a much better done video on the exact same topic

Most of us on RU-vid have more than 1/4 of a brain cell, unlike some one instagram, or other platforms.

This was the comment I came here looking for

yes i noticed that too hahahahha

@@Sports_bottle Don't flatter yourself, RU-vid can be a cesspool of comments too.

@@Bystronicman08 true

Even just 4 wheels on a base would be a cool example.

the what of a what makes it what?

Thank you! That was a concise deep dive. The combination of active and passive radial steering is such an elegant solution!

@@JinnaiT Think of a train as a huge car, and a 'bogie' is like the combination of axles and wheels, except you turn the /entire axle/ instead of just the wheels on the end, and when you combine that with the fact the wheels are sloped you can kinda self-correct so unlike in the short, the ride is smooth and straight even when you're going around a curve.

Yeah. What he said.

​@@The_Dougie - Lol. I'm not sure why this is so funny to me right now, but it is.

Thank you White people.

They're also responsible for things like nuclear weapons, weaponized social psychology, and biological warfare. They're pretty much either the best people or the absolute worst. Quite the dichotomy!

Yeah and those scientists, scholars, and engineers have also helped f*ck up the earth and nature beyond repair.

​@@clicheguevara5282they are responsible for everything we have today so yea

And people who were in the hard labors of building it. They are people we are very grateful for.

I thought the same thing; an outside or open working differential, lol

@@mirandabri834 it's so simple it never would have even crossed my mind. Super cool!

@@mirandabri834maybe even call it a “solid state” differential.

yea, but i am not sure if this is safe because this wont be stable on rail, and with the center of gravity of the train and speed, it might have rollovers

This is not how train wheels look like.

@@Noktarash1990 well yes, but this video it showing how smoothly it turns without derailing but it will cause more derail and rollovers in my opinion

Wow 3 commenters out of 3 don’t understand this is just a model of the concept created to facilitate the understanding of how and why train wheels are designed the way they are.

Fk Sheldon and that obnoxious simple minded comedy show

rare footage of a heisenberg fam comment without replies

Some turns have flange greasers to keep flange wear down

​@@Texassince1836also helps with noise!

Love it when the train derails anyway

@@issnake1109lmao shit is dangerous have seen several.

@@Juan0824 I come from a railroad family and I have heard a lot of stories. Shit is dangerous man

Would there be any benefit or advantage if our cars had these cone-shaped wheels?

​​@@krumbleme2 A spherical rim surface should not confer an advantage. (First, a portion of the surface of a sphere with the diameter of the rim would have too much convex curvature; to have a larger second diameter, the shape must be a portion of a toroid; that allows a slightly convex or slightly concave curvature.) The difference in shape would be too small to see or easily measure. The top of the rail is crowned, not flat, so the initial contact is a point, whether the wheel surface is perfectly conical or slightly toroidal. Under load, the wheel and rail deform slightly, increasing the area of contact. The absolute optimal wheel probably is neither exactly conical nor exactly toroidal; the optimal shape probably depends on multiple factors including the profile (shape) of the rail, the length of the axle, and the length of the bogey; it can be developed by modeling the system and refined by measuring forces and movements on working railcars.

I believe it is called homing oscillation Nope you are right, hunting oscillation.

That's why they make the train track twist and turn a bit all across the train line. :)