How Open Differential works

Learn how an open differential works, the main parts and why we use them in this video on open differential explained
Correction: 2:26 "Camshaft" should read "Crankshaft" audio and visual mistake.
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[@EngineeringMindset]

*These videos take a long time to make* if you would like to buy Paul a coffee to say thanks, link below: ☕ PayPal: www.paypal.me/TheEngineerinMindset Channel membership: kzbin.info/door/k0fGHsCEzGig-rSzkfCjMwjoin Patreon: www.patreon.com/theengineeringmindset

[@The_Engineer_Guy]

Seems you had a typo there. The Pistons are connected to the Crankshaft. Not the Camshaft. ;)

[@Ottos_ScLm_Race_videos_2009_on]

@@The_Engineer_Guy Yep I had to stop and replay the video. Camshaft opens and closed the valves. Crankshaft gives power out to the Transmission.

[@LawatheMEid]

I live in Syria! Sanctions!! I wish i could you deserve.

[@EngineeringMindset]

Thanks, correction added to video description

[@The_Engineer_Guy]

@@EngineeringMindset Youre welcome :) Not a problem.

[@mikechiodetti4482]

The only change to this video is the pistons and their connecting rods are mounted to the CRANKSHAFT not the camshaft. The camshaft is turned by the CRANKSHAFT and the camshaft is used to move the valvetrain which opens the intake and exhaust valves.

[@stackreaper171]

Yeah right. I noticed that also. It should be crankshaft

[@billdoodson4232]

I'd commented on this before I saw your comment.

[@EngineeringMindset]

Thanks, correction added to video description

[@eikodunn]

@@EngineeringMindset No correction to the video?

[@Spozinbro]

Guys it's a tiny mistake don't crucify him for a small mistake it's already hard to make these videos

[@cody4258]

I don't even have to watch the video before the upvote, I just get that out of the way while the ads play

[@glencoewhite6939]

Dude this video is amazing. The graphics, the explanation; it all comes together brilliantly.

[@sushilgharat2264]

The learning goes beyond the limit with engineering mindset... I'm very much thankful for increasing our knowledge day by day..🙏🙏

[@McNair1952]

I remember reading many years ago that straight cut gears were more efficient but were much noisier than spiral cut gears, so car manufacturers chose the quieter option.

[@tinytonymaloney7832]

Er... I still cant see how both back axles turned independently, watched a few times but you got me. Both axles are in contact with the spider wheels so are effectively locked together, so how can they turn independently?? Certainly a clever peice of engineering. Is there an dummies video guide to this video? 🤔😔 Great graphic by the way. Even though I'm stumped.

[@hgbugalou]

Because the spider gears can turn independently. Search KZbin for Lego technic open differential. There are videos of people building one with Legos and it makes it easier to see step by step.

[@szymoniak75]

Look for these old videos (i think done by us army or something) explaining differential and Many other mechanical principles they are much much better.

[@ChillBuilds]

Enjoyed the video. In your example, are the changes in speed really "inversely proportional". For instance, if you slowed one wheel down to 1 RPM from 300, it wouldn't make the other wheel go 90,000 RPM. It seems more like an additive/subtractive relationship, where the lost RPM of one wheel is found on the other.

[@tomr6955]

Not sure why you're squaring it. To me inversely proportional sounds fine.

[@sapelesteve]

Very interesting as I never knew exactly how this worked before now! 🤔🤔👍👍

[@LawatheMEid]

Would you please add videos about: mechanical 4WD & mechanical AWD ? Thanks God please your efforts.

[@hmfernandes1]

Differentials are a substantial piece of engineering. Pretty much the reinvented wheel.

[@krzysztofmazurkiewicz5270]

The only thing that i would personally add is a presentation on what happens when one wheel looses grip. But i guess this may pop up on a more advanced diff with a locking mechanism ;)

[@bendyloco]

This is what I was wondering, so is that a situation when the difference becomes non-proportional and would fail without a lock?

[@krzysztofmazurkiewicz5270]

@@bendyloco basically thats why offroad cars have a diff lock. When one wheel loses grip then it spins like crzy taking al the force out from the wheels. Diff lock stops this and forces both wheels to spin with the same speed. But this also causes the issue that when turning they also spin with the same speed. And thats why the diff was invented so they can spin in different speeds.

[@AnthonyWrenn]

So what I am experiencing is probably normal? I just uploaded a video trying to troubleshoot why my wheels aren’t turning at the same speed when the car is off the ground. Also, the issue is when I slightly depressed the break the wheel driver side wheels starts moving until I apply more pressure and then it stops with the other wheel. When I released brake pedal both wheels turn until there’s just a little pressure left and the driver wheel starts to stop again while the other ones continuing at a higher speed and then when I finally released the break, the driver side wheel stops rolling while the passenger wheel seems to continue at a pretty high rates speed .

[@mnib4182]

Hi Paul. Would it be possible to make a video on how Gas System/Combi boilers work? I’ve not seen a good explanation yet and would really appreciate it

[@clazzascashies133]

Got a notification for this while changing my differential 😂

[@mahendraify]

Please make a excellent video on degree of reaction of turbine. Plz plz plz

[@ALWAYSPDG]

Not the camshaft but the crankshaft.

[@EngineeringMindset]

Thanks, correction added to video description

[@nickayivor8432]

Good Evening The Engineering Mindset My teacher SUBSTANTIAL The Engineering Mindset Thank you for sharing it God bless you SUBSTANTIAL The Engineering Mindset From Nick Ayivor from London England UK ⏰️ 18.42pm

[@Ottos_ScLm_Race_videos_2009_on]

Not all rear end have a back cover. A Ford 9 inch has the cover as the center of the rear end. To remove it you pull the axle covers off, pull the axles out and take the center out of the pumpkin. Also if you have the trans in park or in gear and you turn one wheel the other one spins in the opposite direction.

[@rickharold7884]

Awesome

[@SDXTITAN]

Ty

[@Goosee9]

Crankshaft* Love these videos.

[@EngineeringMindset]

Thanks, correction added to video description

[@onewayintospace]

Никак не пойму, сколько не смотрю на дифференциал - но как соединенные вместе через шестерни скорость которых влияет на колеса с правой и с левой стороны они могут двигаться с разной скоростью!!! Наверное надо собирать подобный механизм и формулы...

[@Spozinbro]

No one watch 4:10 at 2 am it hurts

[@carlbeeblebronx9061]

CRANKSHAFT not camshaft.

[@EngineeringMindset]

Thanks, correction is the video description

[@OutnBacker]

The video does not explain why open differentials are - or can be - inferior in snow or on wet grass.

[@hisss]

Inferior to what? Pure guess here as I know nothing about this topic: closed differentials? Not trying to be funny, I really have no clue about this stuff...

[@ChickentNug]

@@hisss I'm not super educated on the topic, but just from living in a snowy area, I think they're called "locked" differentials, and basically it inhibits the wheels from moving at a different speed. I think somehow it disconnects the spider gears so they have to move at the same speed, and it makes it harder to lose control and spin out. it's good for traction, but bad for turning and can even damage the differential/axle if you put too much stress on it. If you look at a car stuck in the snow and putting throttle down, you can see one tire spinning and the other not moving with an open differential. With a closed (locked) one, both are forced to move at the same speed so there is both more traction and they wont rotate in different speeds so you aren't as likely to slide on ice from forward motion (I think) I could be wrong and you'd need to verify all of this, but this has been my understanding for most of the 18 years I've been alive haha

[@OutnBacker]

@@hisss Inferior is perhaps too strong a term. Open difs are fine. They are under most vehicles on the road - even 4WD vehicles. What's better is BLD or brake Lock Differential, which senses when one side is losing traction and shifts power to the side that has traction. Better yet are the several types of AWD systems that sense corner to corner as well as side to side and shift power accordingly. My old Grand Cherokee has open difs, but it is equipped with BLD, called Command -Trac, which does make a difference although it is not particulary heavy duty.

[@hakanersoy9210]

İlk yorum

[@hughaskew6550]

Whoa, big boo-boo here! The pistons do not rotate the camshaft, they rotate the crankshaft. The camshaft does not transfer power to the clutch. You need to get your terminology right if you're going to be explaining how things work.

[@EngineeringMindset]

Thanks, It's already noted in the video description as an error

[@billdoodson4232]

Very poor, almost unacceptable. The pistons in the engine are connected to the CRANKSHAFT, not the camshaft. A typo in the cartoon maybe just a typo, but then for the explanation to also call it a camshaft, it seems as if the person talking does not understand what is going on, which for a channel like this IS totally unacceptable.

[@EngineeringMindset]

Thanks, I've accidently said camshaft instead of crankshaft. Mistakes happen. Correction has been added to the video description.

[@billdoodson4232]

@@EngineeringMindset Many thanks for coming back so quickly. I was not the only one to notice having read some of the other comments.

[@brunosmith6925]

None of this matters with EV's...