How a Differential works ?
2014 ж. 10 Мау.
7 116 848 Рет қаралды
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Working of a differential is explained in a logical and illustrative manner in this animated video. Differential helps in turning the drive wheels at different rpm while the vehicle takes a turn. The basic parts of a differential is introduced first. After that working of differential at various driving condition is demonstrated.
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Sir, please make a video on air brakes
9i8
Great examples and presentation. Horrible narration. Obviously English is not the script writer's native language. +1 for the effort.
Yeah I will use this one in my next terminator
🇹🇷🇹🇷👍👍
This is a fairly simple yet absolutely genious form of engineering
+gnarkilleptic and imagine... it was probably originally made with no computers.... probably a slide rule and a pencil
Learn how a torsen or limited slip differential works and you'll realise this was just a small stepping stone. And if you really wanna be mind fucked, learn how torque converters work. They're incredible.
yep. torque converters are kind of alien tehnology.
This took probably 10 years op engineers working to get it out to the market science is very slow it takes ages on the innovation side.
@@Corkoth55 currently stuck designing gears and stuff for a project. Can confirm, sucks without a computer.
"Differential plays an integral part", this made me laugh.
@The Foxtrot 😆👉🤳
Math 100
Why
@@akhilaanil5464 It's a play of words. In calculus, there are 2 concepts Differentiation and Integration, They are opposites. so saying "Differential plays an Integral part" is quite the pun.
@@danielisflying oh I see Okke thanks for the rply
"The spider gear plays a pivotal role here" Well played.
I was checking to see if anyone else caught that.
swangooo Sexuel
swangooo nerds, explain it to me😭😭
@@christopherderrell8470 what that means?
The differential plays an integral role is the one that got me laughing.
You guys are the best in the business and concisely explaining complex mechanical engineering to simpletons such as myself. Bless your hearts.
I know I love it~~~!!!!!!!
And it’s a Indian channel with a team on patreon so the speaker is always from broad to keep language common for all
Very helpful, clear illustration presented at a speed that doesn't require pause/rewind/play to understand. Thank you!
Its amazing how complex that helical gear design is .. And all the movement, same as transmissions and synchromesh Long way since the horse and carriage
Amazing channel! The animations really help me understand in depth without any confusion. I'm really thankful channels like this exist so I can learn from home
Golly, how do people come up with ideas like this?
Rational Mechanics
this is still easy, imagine how they put billions transistor in CPU
only cause they figured it out for you. Solemn
We got a thing thay u dont Brain..
jarvis what have you invented?
This video is awesome. Now, I understand how a differential works. It was so difficult to learn from a book!. Congrats!
Thanks for pausing between statements. It keeps me from having to go back in the video. Good Vid!
Thank you so much for this video! This and the Limited Slip video explains EXACTLY what I wanted to know about differentials.
Finally, Now i understood the real working by this video in just single look. Thanks a lot to the animators, maestro and team.
One of the concepts that really benefits from animated video. For those people still baffled, I share that sometimes - the person who thought this up is sort of a genius but ignored the issue of traction on poor and variable surfaces. Here's my short version: In a STRAIGHT LINE travel situation, you can treat the 'spider' gear(s) (the little bevel gear mounted on a bar from the biggest or 'ring' gear) as simply LOCKED to both axle-end gears, as if welded. IE in a straight line, perfect surface traction, the twiddly bits in the middle are locked up in effect. DURING A TURN - or of course if one wheel slips in mud and the other is stuck solid ! - the trick is to realise that the little spider gear is going to 'lean on' whichever axle-end gear is the most steady (the stuck wheel axle), and spins against that to drive the axle-end gear it can. This situation means the little spider gear NECESSARILY drives it's way along the 'stuck' side, and TURNS THE FREE-SPINNING AXLE-END GEAR and thus the axle IN TWO WAYS - ONE with the spinning of the little spider gear about it's OWN axis or pivot, but TWO is the fact that the spider itself while doing this, is entirely rotated along with it's axis/bearing/bar that supports it, AS WELL. That, ladies and gentlemen, is why NOT ONLY does the free-spinning wheel on a differential axle freely spin, BUT SPINS at TWICE the speed that the wheels would if only both of the frickin' things would turn together! Hopeless. As 'LEarn' point out in the next video about Limited Slip Diffs, this is the major drawback. It's such a massive flaw even for occasional grassy-field parking, it's a wonder nothing was generally done about it for decades, the reason of course is that every tinker you do to this blessed thing, results in a headache you have to solve. My solution? Electric motors in every wheel and electronically control the relative speed to be theoretically correct. Every vehicle then is AWD and regen braking is guaranteed, and the wheels that spin only are turned as software dictates - eg at exactly the same speed as any other wheel if you are on snow/ice, so basically it will impose driving in a straight line while providing the maximum grip - the rest is down to tyres. You could even turn corners without turning the steering, by making one side of wheels go faster than the other. Still, good vid. It's not an easy concept to get your head around, despite drawbacks, whoever thought of it was a genius.
Wow. I mean wow. I always thought cars were relatively simple, I mean they were the first vehicle ever invented and car mechanics are usually blue collar workers. But this stuff blows my mind. I've been learning how cars work the past hour and it keeps blowing my mind, but this... the differential... I am amazed. I am also embarrassed to think I could not have thought of such a good mechanism that was also so simple. Come to think of it, I wouldn't even think about the wheels needing to rotate at different speeds. Amazing, it corrects itself purely mechanically. Cars are freaking amaziiiiiiiiiiiiiiiiiiiiiiiiiiiiiing......
You don't need to invent a differential to repair it. You just learn it, the genius is the engineer that made it first. :)
Indeed - But some of the best engineers on the market are employed in racing, mostly F1, Prototype racing and rallying :-)
ur videos have helped 70% of my lab report so far.. thank you sir
I'm not sure if maybe I'm just weird but I had always heard about differential and finally decided to actually look it up and see what it is and this is literally one of the most genius designs ever. I know I'm late to the game but humans are amazing.
when I see that I feel proud to be human
ravvraj The inventor of gears or differentials?
ravvraj 😂
More white technology
Impressive. If you like this, check out Double Clutch Gearbox for piece of modern mechanical engineering delight.
@@cornstar1253 german/french/british only lol what the fuck did portuguese ppl did in engineering
this lecture is very very helpful. Thank you
This video has been really helpful for me in understanding the role of differential gear in an automobile. Thanks a lot for such a good video.
No, THANK YOU! This was the first video I've ever seen on differentials that I could actually understand and follow!
This one video taught me more about differentials than my college ever did.
Indeed. KZhead is undoubtedly better than college. KZhead creators create content on topics that they are passionate about and know a lot about. College teachers are told what topics to teach.
This helps a lot. Thanks. Best.
Thank you !
+Learn Engineering I don't completely understand the velocity part on how it allows the drive shafts to move at different speeds. Physics isn't really my thing.
Constantinos
Learn Engineering please do how a motor cycle works
Woow! I feel smarter already! Thank you for the clear explanation and amazing animations.
this actually helps me understand more about the gears they make for RC cars to, thanks :D
This channel is awesome!!! A++++ Thanks very much!
Wow. This is brilliant.
gafeht
Perfectly explained sir. Thank you for making such animation video for us to understand basic concept easily.
this helped me a lot...thank u for making me more clear abt differential gear systems.....more than a textbook reference using figures n diagrams
Best invention since the wheel.
I can name ten better easy
@@qtip3998 then do it
@@nicklaus___1501 there are so many inventions that are better.
@@qtip3998 he said do it..do u?
Q Tip DO IT!
thanks, that is the clearest video I have ever seen explaining the function of a differential gearbox ☺
The explanatios,examples ,the actual demonstrations by video etc., are. quite outstanding, to a layman like me. Its. quite amazing to understand the techniques used in this world for benefits of mankind.
Great video that makes understanding easy and simple. My only gripe with the video is this... ENGLISH ARE HARD!!!
+Alomegasupreme Is*
+Roy Perlstein ------the joke-----> (you)
you did it wrong, bruh
+Alomegasupreme *facepalm* An explanation of the joke for those of lesser intellect... (Thanks Corkoth55 for getting the joke...) The word "are" was used instead of "is" intentionally for comedic effect to point out the painful English spoken in the video.
"english are hard" is grammatically correct, but it means something different… :)
Sorry if I'm just being really stupid, but how does the spider gear "know" to rotate on its own axis when the car is turning? Or is there some sort of mechanism involved?
MrLatinNerd There is no mechanism involved to spin the spider gear. The spider gear is forced to spin on its own axis due to the demand of speed differential.
Learn Engineering Why is there a demand of speed differential?
Arthur Collins It's the force exerted onto thew heel by the gourd as Zan turn
Thanks
Arthur Collins At the starting of video, we are explaining it. To take a turn the left and right wheels have to turn at different speeds.
This is great. I've always wondered how the gears in the differecial works.
This is the best explanation I have seen about how a differential works.
Pivotal role: 2:37 rotates on it's own axis.
can you make videos about the suspension types of the vehicle?
@chu Harry .
Great video. Thanks for explaining that so clearly!
Thank you for helping clarify so much information to me! I owe you!
Spider gear, spider gear, does whatever a spider gear does. Can it swing from a web? No it can't, it's a gear. Look out, here comes the spider gear!
I’m glad I’m not the only one who couldn’t stop singing this during the video.
It's hilarious when non-native speakers write a script and then hire a native speaker to read it verbatim. Great work but I couldn't get over Spider Gear
Who ever made this lesson forgot there’s a word called “the” avoided oddly as in “spider gear is used to...” instead of “The spider gear is used to...” Still it a good lesson. Thanks
Still it a good lesson
this video definitely is a great explanation on how a limited slipp dif. works !!
amazing invention.Hats off to the person who thought of it!!thanks guys for teaching me this
Rc cars have limited slip diff by simply running the spider gears in thick silicon oil.. the effect is adjustable by running different viscosity.
Limted slip uses clutch packs. The clutches must slipe for the wheels to turn at different speeds. I got my mechanics license 44 years ago this month
I am confused: what powers the spider gear to rotate at the correct speed in a turn? (Or is it just a feedback thing from the tire speed, but if that's the case there would always be a delay)
Speed differential of the wheels makes the spider gear spin on its own
wow awesome video. Clearly define everything... speechless! ya... my life is now complete! Thank You Sir!
Probably the best visual, & explaination I've ever seen. Thx!
Grumbly One they explain it better in a 1937 demontpstration
thank you!
Who in the hell could figure this out well over 100 years ago
Good physics knowledge and some imagination
They had no distractions like we do today. With time, the human mind can figure out all kinds of things
Wow.... at last it became clear... 🤦🏻♂️ thankyou so much sir. This video was the best of all differential explanation videos on internet. Gbu......
The best chanel for engineers on KZhead by far.
The English is pretty badly garbled in a few spots, but this was still very helpful. Thanks!
2:31 "the spider gear plays a pivotal role here" I see what you did there
This is a great video! I understood it perfectly. Thanks for making it!
I love the new computer simulations to show stuff. LOVE this video.. Boom my daughter gets it in like 5 mins.. I could never wrap my head around it either.. love this type of teaching..
So when people get welded diffs, is it the spider gear that is welded so it prevents the outer wheel go at higher rpm's, thus making it easier to drift?
yes
Cheaper too 5$
So a welded diff, you just weld the spider gear so it cant rotate?
yup. or, if you are cheating on a dirt short track in the front wheel drive class, you might just weld up the passenger side wheel, but I wouldn't know anything about that. ;p
This is just simply amazing. I finally understand why the 3 gears in my Lego Bugatti Chiron are assembled the way they are. Thank you Lesics!
this is the best explanation of open differential! thanks
The lack of the word “the” and the letter “s” in this video is borderline criminal.
Same thoughts lol but idk maybe the names of such fine parts deserved to be addressed with proper nouns 😂
The letter "s" was in about every sentence.
There's a video on this that was apparently made in the 1930s and the explanation from that one seem a lot simpler?
kzhead.info/sun/rL16p5txampsioE/bejne.html This is the video, and while it is much more simply explained, it's also half commercial for the product and half engineering breakdown. The engineering half is superb though, and they went all out with making custom physical models to show not just how it works, but how the problem is thought through from an engineering perspective. It really takes a lot of the "I could never have thought of that!" factor out and makes you realize that, while this is an ingenious piece of mechanical equipment, it doesn't necessarily take a complete genius to come up with it. If you work through the problem step by step then the problem becomes a series of small problems with much simpler solutions. Then, once you have a working model, you make improvements and optimizations.
please include in the video fluids and how there aging impacts the function over time, show what happens when fluid is not changed or if a defect somewhere in the machine exists. phenomenal videos btw.
best vid on diffs ive seen so far. subbed!
Oh spider gear, your so good to me
Engineers are so much more intelligent than I am. lol I never would have thought of this.
The best video on KZhead to explain how a differential works. What language is this translated from? The lack of definite articles ("the") is a little off-putting, but the whole video is still so much better than any other it still gets an A+ in my book!
wonderful, I didn't know how a differential work, and the main function of it I really learned something. FUTURE MECHANICS
I've seen several of these videos, and I still don't get it because the Spider gear appears to just go in circles and be rotated in place rather than Drive the axle. Plus, how can one gear with a fixed number of teeth drive two shafts with fixed numbers of teeth and yet one shaft if turning slower than the other . I don't doubt it works, but these engineer types need to explain it better become they sound like my High school Teachers in the Tech classes and Electronics , Chemistry , Physics , and Trigonometry that just repeated what was in their Books or spoke as if we already knew this stuff and the Lexicon that went with it . I watched a video by a very smart Prof that tried to put a picture in the minds of the Students as to see the reasons for why something happens and the expected end results that the formula can prove to check what you did. In just 10 minutes I understood something that never made sense in Electronic class and had puzzled me for over 30 years. If we had more Good Teachers that did it with a passion in their field of training , there would be more Bad students getting motivated to learn more in class because they are taking it in and feel better about themselves when their Marks go up . The City I live in has reduced the Educational system to Jobs-4-life by people drawn to it for the money and gold-plated pension , not all are like that but just this year the Media reported on a Line item in the Budget for Math Teachers to be paid in a Summer Course they can take to learn the basic Math skills expected by grade 8 . These are High school Math teachers that read from a Book what the Course material is end when each Lesson starts and ends. They don't have the skills to answer questions about the Math or show the students WHY a formula is used and how to check the results . We have Diversity Teachers hired to meet quotas but have poor English skills , the exams are dumb down while Teachers now coach students to help them pass Classroom tests even when it's multiple-choice and it's skewed to have absurd answers to reduce the choice to a 50/50 chance for the right answer. I think that if the fixed parts were in a Unique color and the moving parts were in color as the power flowed through the unit in stages. I could see it better in my head because right now the axle seems like the Solar gear as the Spider gears are the Planet Gears acting from a force and not drive anything.
*"I've seen several of these videos, and I still don't get it because the Spider gear appears to just go in circles and be rotated in place rather than Drive the axle. "* As shown in 3:18, there is a hole in the tube that connects the wheel. This tube is connected with the small gear, that is connected with the Spider gear. The axle is no shown in the video. *" Plus, how can one gear with a fixed number of teeth drive two shafts with fixed numbers of teeth and yet one shaft if turning slower than the other ."* Suppose you turn right. Then, the small gear will start rotating counter-clock wise. This is a little hard to imagine, but put it this way: if you are turning right and you, *instantaneously*, put the car straight again, it would be easy to visualize that the speed of the right side and of the left side of the small gear. The secret lies in the fact that the right side *(in this case)* doesn't need to move as much as the outer side, which is the reason why the left side is given an extra torque and the right is being held up
Programación Ca I agree it works, but it would be better to build the system piece by piece and highlight the free moving part with the ones that are fixed to see the flow of power through each part. To me , the spider gears are mounted to the Ring gear that also drive the right axle shaft. As they both turn as one unit the free spinning smaller gears mesh with the Left axle shaft , so when the speed changes how can the Left axle change speed when drive by the spider gears of equal Teeth meshed to the Right axle. There has got to be something in the video they are leaving out because the Left axle should still lock-up because it's just two shafts acting like one with the Gears transferring power similar to a solid axle. Again, I know it works , but the video seems to be for someone that already knows how it works or for people to just memorize it and repeat it while not really knowing the HOW and WHY.
Gary wood when the inner and outer wheels have to move at different rates the intire carrier rotate, to make up the difference .if your ever at a salvage yard find a rear axel with the cover off and rotate one wheel, If it's an open diff they will turn in opposite directions and watch the carrier as it rotates. I think all will become clear once you see it in action. It's really hard to explain but it makes sense once you see it. The spider gears are rotating with the carrier as it turns on the carrier bearings during a turn or on the the cross shaft/pin at the same time they are spinning around thier own center with each axel.
roger depew Right, but the Ring gear is meshed into the Pinion gear which makes no sense for how the spider gears works. It's like trying to tell me that a complicated watch has all the gears meshed but while two can rotate at different speed. Back in school we only had to know what it was and not how to build one or explain the path of power from the drive shaft to each wheel. Sometimes a bad teacher makes it tough for a good student that want it kept simple .
one gear can turns slower than the other because they have differente sizes, thus the radio from the most outer point of the gear to the rotation center of it is different than the radio from the most outer pont of the other gear to the rotation center of it, which is the same place where they connect, in that point the speed is the same 0, its just basic rigid body mechanics.
Think about the guy who invented this..really God Gifted intelligence
The conventional automobile differential was invented in 1827 by a Frenchman, Onésiphore Pecqueur. It was used first on steam-driven vehicles and was a well-known device when internal-combustion engines appeared at the end of the 19th century.
It amazes me too how they think of these things.
Thanks that was a very good explanation of how a open diff. Works, I race rc car's and this helps understand how we can tune the diffs with different wieght fluids
Great vid, subscribed. I wish you wouldn't drop the word "the" in so many places, but that's beside the point, I guess. This was so clear and easy to follow. I learned something. Thanks!
Before I couldn't even say engineer, now I IS one!
🤠
How spider gear rotates in own axis?? I mean what causes it to rotates?
It’s just free to move in whatever direction an outside force acts one it
@@lukegoalie18_82Yeah i got it .... thanks 🤗🤗
what is that outside force? Like when the car is turning, what force makes the spider gear turn?
@@kartsona kzhead.info/sun/rL16p5txampsioE/bejne.html
@@kartsona watch this video it will solve your confusion 🤗🤗
You are the beatles of the explanations. Keep it up!
Just marvelous.Thank you for the series of video on transmission system. you have worked too hard to make these videoes.
USE THE WORD "THE" GODDAMNIT
+The Best Bmx This channel is run by a bunch of guys from India. For what it's worth, they're doing a damned good job of communicating these concepts in a language they are not familiar with.
Then why the hell can't they let the guy narrating, who is clearly a native English speaker, correct their mistakes as he's reading??
1:34 1:48
They do lol
This guy really hates the word "the"
That was the funniest part of the video
The Differential speed, variation in Rt wheel & Left wheel speed , demo is very informative
اختراع جميل جدا رغم بساطته لكن التعقيد في فهم الحركه . الصراحه عدت الفديو اكثر من مره ياله افتهمته . شكرا جزيلا عله الشرح المفصل اجمل قناة واتمنه الفديوهات كله تترجم ل اللغة العربيه .
How does the spider gear know when to rotate on its axis
Like how does the diff know when the car enters a corner
The spider gear is free spinning, So when it comes to a corner it spins which ever way required for the corner.
I am also a little confused on that concept. So from my understanding the spider gear spins a certain way to match the resistances of the two wheels. Because sliding is harder than rolling the wheel on the outside basically governs how much the spider gear rotates by. Is that the concept?
Carson Belknap exactly. It is governed from the outside.
its basic theory of differential . ok tell me how to adjust the height by using seam
Welded diff life
It amazes me how much is going on to transfer all that power. How many components that could break!
this is the most detailed explanation ive ever seen in the history of automotives
I was about to kill myself but thanks to this video I no understand differential gears.
Learn engineering.... but not English.
moving shtrait ;)
awesome mechanism and fantastic explanation also. Love you brothers.
Thanks I'm 13 and I love watching this so I can learn about this😁. Keep going on!
Fantastic! GOOD JOB and THANK YOU!
Thank you for the instruction. That is very helpful
Hi there. Very nice vid. Mechanical engineering never was my strong suit, but you guys explain it in a very comprehensible way! Good channel and excellent vid. Thumbs up!
this is genius. I never knew how this worked and learning how is really cool.
Great video that makes understanding easy and simple.thank you.
A lot of things like this its really a testament to the ingenuity of some very smart people.
Its s really a excellent vedio I can understand so esaly tht I nvr frgt... so it hlps me to gv my automotive exm ... thnks fr uploding ithos wonderful vedio
That was so clear! Thank you
the way you explain is very understandable
Simple and clear explanation! Thank you.
what an amzing animation..my job would be difficult wdout ds..thanx a lot learn engineering for d work.....its clearly understood now...iam an budding mechanical engineer..subsription to your website has been so helpful to me
your videos are the simplest and best !!!