What about a centripital clutch? For example, a snowmobile, where it clamps down on a belt as more throttle is applied. I have a basic understanding of how it works, thanks to high school physics, but I would like to see more of the mechanical science behind it that you offer. You do an awesome job of explaining this stuff. I'm more of a mechanic and know what components work with others, but I love that you explain how and why. Keep up the good work.
I would never say "dropping the shifter" is really safe, as clutches are designed to provide a smooth torque delivery to the driven wheels, "dropping" it may cause damage as the instant application of torque could easily upset things.
Brap Brap I have no idea how safe is it.. I only drop it slightly sometime. Nothing to race since the engine got enough torque for the first gear so i would need to drop it on 2 and it wont have enough power... Poor 225cc 400lb bike with heavy and grippy tire. Any idea if wet centrifugal clutch can jump. I being doing donut in the winter on 4-5 gear and im not sure if it just a driveline loose or the clutch bumping sometime. WOT in a turn on 4 gear the rpm kind of fall down and start knocking from the engine rear area.. Being abusing this atv and it still running like new ahah
No i've been told by many motorcycle enthusiasts that wet clutches don't jump, so it might be an engine issue. First step as i'm sure all the forums would say is clean your carb.
would a centrifugal clutch be effective with a motor that reverses direction? are these clutches real-world built to accommodate reverse drive direction?
thanks for making this! My 12 year old has a go kart that is Cent. clutch driven and the is explains the process. Can you make a video on torque converter comapraison?
I have a small question not related to this particular video.What is the engine timing belt and what is its purpose?is it related to inconsistent engine idle?
well I have a question. I have a 100cc motorcycle with a centrifugal clutch and a multiple friction disks clutch , I can totally understand the accelerating process but what about decelerating? I use engine braking on my motorcycle quite often but I don't know why when the clutch is driven by the wheel it's in engaged mode. Does it has some sort of one way clutch fitted in or something?
i am guessing that this can only work on smaller vehicles with lower torque motors, since higher torque and bigger load on the wheels would overcome the friction created by the centrifugal force?
AHA! Now I know how those little single-speed 50 cc dirt bikes can motor around without a clutch. A tad bit different than the transmission in my YZ 490. :)
Wow thanks man i have learned so much from all your videos pleas keep making them! P.S: Can you maybe make a video about how motorcycle clutches an gearboxes work? Thanks alot!
Well, springs are meant to do this. Everything wears out eventually (like the springs that hold up your car), but other things would likely fail first (like the friction pads getting worn down).
could you please do a video on how a Hondamatic transmission works? pretty much just Honda and Saturn that i know of use them. where you have a torque converter as you would with a planetary auto but with the manual style parallel gears each one with it's own clutch. i find it hard to explain to people the difference between a typical borgwarner e.t.c vs a Hondamatic
G'day.. I'm quite new to this world of pocket bikes etc.. I've a clutch system here where it's only 1 small spring holding 2 bits together. So im guessing this design is still current &works the same?
Hey I have a question I have made a go kart on my own and used a gasoline 13 hp engine and a centrifugal clutch , chain and a sprocket on the shaft carrying the rear wheel just like that drawn on ur board The system works fine except for 1 thing When the car is at rest and I fire the engine it doesnt go that powerful it just never lose traction because the clutch slips so power is lost to friction even if I floor the gas pedal the wheel never spins the car just keeps accelerating at a very slow rate till it reach the max speed however the clutch I used is rated at 13hp so it should grip and give me that push of the start line I have seen go karts that drift and smoke tyres on youtube with smaller engines than mine so ?????
Well. The shoes and pads may be rated for 13hp. But the springs are definitely not. Try using softer/weaker clutch shoe spring, and lower the engine idle speed. If that doesnt work, it possible the the type of pads on the shoes matter. Harder ones last longer, but slips more. Racing types are really grippy, and locks up pretty easily, which is what you want
Wow dude i always wanted to know this. Like i always wondered how i could possibly make a bicycle powered by say a lawn mower engine or something, and wondered how other do it. I thought tourque converter but that seems too big and complicated for this application, and it would be insane to use that i suppose b/c oils and whatnot. I never knew these existed and never had enough drive to look up how people do it. I Seriously feel ALOT smarter for some reason THANKS!
9 років тому+1
iwillavengeyou try a weedwhacker motor for a bicycle. also look up flip flop wheel hubs that has a freewheel on both side of the wheel on single speeds.
So this clutch is sprung closed? The spring is tension is critical to its use? What is calculated to find this release tension of the springs? Great vid!
Isn't there a certain RPM interval where the springs are stretched enough so the friction pads contact, but not actually transfer power effectively to the housing? I imagine it's similar to riding a conventional clutch. This can't be good for clutch wear. So these clutches are good for engines that are either sitting at idle or just getting the nuts revved out of them and nothing in between, right?
Hello Engineering Explained, I just got a random question that popped into my head. Would it be possible to use this type of clutch in a car? if yes would it have the ability to fully transfer the torque?
the power comes from engine. and then to clutch. then why it goes to transmission ? and if it goes to transmission at the last. then how the varying speed from transmission to the driven shaft ?
when the friction whichcraft happens in a clutch, then it transfers power straight to the transmission. And the speed then depends only on engine's RPM, because the clutch is still engaged
this is great i use them on my RC Nitro cars . But how does it work on the kawasaki H2 . please make a video on how the supercharger and a Slipperl clutch works on a kawasaki H2 . thanks :)
Praval Telagi Typically used for much lower torque applications, as you'd likely have slip and generate too much heat if you used it with more powerful vehicles.
what I don't get, though, is how my Honda Silver Wing scooter can hit 75 mph (no problem), but to that point I hear no shifting of gears. It can't be that there's just one gear, so how does the shifting take place within a centrigal clutch?
Great. So that's actually why people call those little-engine powered vehicles automatic? They use a clutch that engages and disengages automatically, depending on the RPM. Is that so?
Captiv4te Most motorbikes don't use this. Only 50cc mopeds/scooters.. Probably because the method can't transfer a lot of torque; the friction is purely generated by the centrifugal force. Motorbikes just use a regular multiplate, hand operated clutch.
Captiv4te I would imagine most use a more traditional clutch, multiplate to keep the diameter and size down. That said, there are adaptations of centrifugal clutches (a bit more robust than shown above) that can be used in bikes: ua-cam.com/video/_SECYempg4M/v-deo.html
Engineering Explained Well yeah, There are also motorcycles with automatic gearboxes... still I wouldn't choose a motorcycle as the thumbnail for an automatic gearbox video ;).
Is it possible to replace a centrifugal clutch in a scooter(CVT driven, 110cc) with an electromagnetic clutch? And tine the timing and engagement to the speed of the engine at which centrifugal clutch engages? Please reply ASAP.
Hmmm.... I see alot of car videos here. >.> Maybe more motorcycle videos and then I'll subscribe x3 Maybe FOR EXAMPLE, explaining a v-triple w sort of motorcycle engine, or the different types stroke engines (5 stroke and 6 stroke etc) I suck at explaining I know.... surry. -.-
Thank you for the video. But I still want learn how to ride a motorcycle such as the manual Honda Super Cub 50 without clutch lever (understandably instead using Centrifugal Clutch). Regards.
minnsminns In the states in pronounced Centri-figal (the way engineeringexplained pronounces it) and most other places its pronounced Centri-few-gul, He's not not saying it wrong, he's just saying it in the way that his dialect of English says it.
People get so caught up in semantics. I probably pronounce caramel, pecans, theater, and a hundred other words differently than you do as well. Language evolves and adapts within various regions.
Its not a matter or wrong or right, in the states he says it the right way, get over the fact that he speaks a different dialect of English and move on with your life. Its a pretty simple concept, you're a big boy, you should get it.
trying to build a go kart with a friend as a summer project. This helped a lot, thanks!
I have a passion for understanding more about automobiles and you have definitely broken the ice as they say. thanks alot
What about a centripital clutch? For example, a snowmobile, where it clamps down on a belt as more throttle is applied. I have a basic understanding of how it works, thanks to high school physics, but I would like to see more of the mechanical science behind it that you offer. You do an awesome job of explaining this stuff. I'm more of a mechanic and know what components work with others, but I love that you explain how and why. Keep up the good work.
You should talk more about motorcycles.
I just clicked on the newest video upload to write how much your reviews are awesome and really helpful.
I didn't know these were a thing, and now I know how they work. I love this channel.
Thanks! Just what I was looking for. Your videos are fantastic.
Nice one.. Sometimes it's these kind of small questions that is burning inside which i don't understand gets answered.. Thanks for the explanation..
I'd like to see you do more videos on the engineering of motorcycles. This is a good start haha (:
there is just now better way to explain this, this is just another extremly well done video :)
Thanks - great visuals and explanation
so how does the disengaging and engaging process of this clutch happen
Sabarno Majumdar All dependent on engine RPM.
Basically it works like a drum brake but reversed mechanism
once again! you've helped explain it in a very simple way! Thanks!
So the friction plates on the clutch shoes extend out via the inertia of the engine spinning?
Short and sweet, thanks a lot! :)
Your videos are quite astounding and informative also...I have only problem that both the clutch housing and the inner part are moving at same speed ?
This is exactly how RC car Nitro and 2 stroke gas engines work except the shoes are on a hinge instead of 100% straight back and forth motion.
Yeah, probably a more common method used!
+Engineering Explained so that semi auto tranny used in atv? So dropping the shifter is safe?
I would never say "dropping the shifter" is really safe, as clutches are designed to provide a smooth torque delivery to the driven wheels, "dropping" it may cause damage as the instant application of torque could easily upset things.
Brap Brap I have no idea how safe is it.. I only drop it slightly sometime. Nothing to race since the engine got enough torque for the first gear so i would need to drop it on 2 and it wont have enough power... Poor 225cc 400lb bike with heavy and grippy tire.
Any idea if wet centrifugal clutch can jump. I being doing donut in the winter on 4-5 gear and im not sure if it just a driveline loose or the clutch bumping sometime. WOT in a turn on 4 gear the rpm kind of fall down and start knocking from the engine rear area.. Being abusing this atv and it still running like new ahah
No i've been told by many motorcycle enthusiasts that wet clutches don't jump, so it might be an engine issue. First step as i'm sure all the forums would say is clean your carb.
will it did dis engage at the same rpm it engages at? or will the rpm be a little lower?
would a centrifugal clutch be effective with a motor that reverses direction? are these clutches real-world built to accommodate reverse drive direction?
thanks for making this! My 12 year old has a go kart that is Cent. clutch driven and the is explains the process. Can you make a video on torque converter comapraison?
I have a small question not related to this particular video.What is the engine timing belt and what is its purpose?is it related to inconsistent engine idle?
Thank you for explaining!
well I have a question. I have a 100cc motorcycle with a centrifugal clutch and a multiple friction disks clutch , I can totally understand the accelerating process but what about decelerating? I use engine braking on my motorcycle quite often but I don't know why when the clutch is driven by the wheel it's in engaged mode. Does it has some sort of one way clutch fitted in or something?
I would like to hear how it delivers power gradually.
Can this be used for bigger CC bikes?
Awesome, you finally made this video :)
i am guessing that this can only work on smaller vehicles with lower torque motors, since higher torque and bigger load on the wheels would overcome the friction created by the centrifugal force?
Absolutely.
at low speeds shoes will not be in contact with outer housing,then how is power transmitted in that case to wheels??
i use 2010 125cc honda with centrifugal clutch. it go 100kmph and go steep uphill noprobs. havent changed clutch. its feels better than cvt
could you do a torque converter video [minibike type]
Beautiful award , and spot for it lol keep up your awesome videos
AHA! Now I know how those little single-speed 50 cc dirt bikes can motor around without a clutch. A tad bit different than the transmission in my YZ 490. :)
Wow thanks man i have learned so much from all your videos pleas keep making them!
P.S: Can you maybe make a video about how motorcycle clutches an gearboxes work?
Thanks alot!
Kindly make a video on slipper clutch
nice video, thanks!
how initial movement is transmitted to the wheels then????????
Doesn't it hurt the springs when they are expanded by force for a significant ammount of time?
Well, springs are meant to do this. Everything wears out eventually (like the springs that hold up your car), but other things would likely fail first (like the friction pads getting worn down).
Wrong thumbnail. Those big bikes don't use centrifugal clutches.
Samuel Feguer ua-cam.com/video/_SECYempg4M/v-deo.html
Engineering Explained Ok, this is an aftermarket clutch.
99% of harley's don't use this... so I'd say it's not really a relative thumbnail.
I've never taken a picture of a moped so it was the best I had.
could you please do a video on how a Hondamatic transmission works? pretty much just Honda and Saturn that i know of use them. where you have a torque converter as you would with a planetary auto but with the manual style parallel gears each one with it's own clutch. i find it hard to explain to people the difference between a typical borgwarner e.t.c vs a Hondamatic
G'day..
I'm quite new to this world of pocket bikes etc..
I've a clutch system here where it's only 1 small spring holding 2 bits together. So im guessing this design is still current &works the same?
Hey
I have a question
I have made a go kart on my own and used a gasoline 13 hp engine and a centrifugal clutch , chain and a sprocket on the shaft carrying the rear wheel just like that drawn on ur board
The system works fine except for 1 thing
When the car is at rest and I fire the engine it doesnt go that powerful it just never lose traction because the clutch slips so power is lost to friction even if I floor the gas pedal the wheel never spins the car just keeps accelerating at a very slow rate till it reach the max speed
however the clutch I used is rated at 13hp so it should grip and give me that push of the start line
I have seen go karts that drift and smoke tyres on youtube with smaller engines than mine so ?????
Well. The shoes and pads may be rated for 13hp. But the springs are definitely not. Try using softer/weaker clutch shoe spring, and lower the engine idle speed. If that doesnt work, it possible the the type of pads on the shoes matter. Harder ones last longer, but slips more. Racing types are really grippy, and locks up pretty easily, which is what you want
Wow dude i always wanted to know this.
Like i always wondered how i could possibly make a bicycle powered by say a lawn mower engine or something, and wondered how other do it.
I thought tourque converter but that seems too big and complicated for this application, and it would be insane to use that i suppose b/c oils and whatnot.
I never knew these existed and never had enough drive to look up how people do it.
I Seriously feel ALOT smarter for some reason
THANKS!
iwillavengeyou try a weedwhacker motor for a bicycle. also look up flip flop wheel hubs that has a freewheel on both side of the wheel on single speeds.
+Tyee Cambrón Flip flop hubs have fixed on one side and a freewheel on the other side. The engine in this case should go to the fixed side :)
The only transmission type I haven't seen you do yet is "CVT Constantly Variable Transmission", or "V-Belt" drives.
Also used in small rc nitro cars :)
Yes
So this clutch is sprung closed? The spring is tension is critical to its use? What is calculated to find this release tension of the springs?
Great vid!
Isn't there a certain RPM interval where the springs are stretched enough so the friction pads contact, but not actually transfer power effectively to the housing? I imagine it's similar to riding a conventional clutch. This can't be good for clutch wear. So these clutches are good for engines that are either sitting at idle or just getting the nuts revved out of them and nothing in between, right?
+tirimut Weaker springs would help in that case.
How do you disengage the clutch to switch gears?
these r used in vehicles that have no gears , like scooters ...
How are these maintained? Im assuming its similar to drum brakes?
awesime video! Do you think you could make one about pull type clutches?
Thank you
hey man can u make a video on how honda wave 125 clutch working animation
Thanks, was wondering what this was and if I could use it for a 40% king tiger maybe around 700kg. Don't think I'll need it.
Hello Engineering Explained, I just got a random question that popped into my head. Would it be possible to use this type of clutch in a car? if yes would it have the ability to fully transfer the torque?
Rokas Getautas Better for low torque applications.
Engineering Explained alright mate :D
What happens when you are still, rev, clucth the first gear? Immediate movement (like being kicked?!)?
the power comes from engine. and then to clutch. then why it goes to transmission ? and if it goes to transmission at the last. then how the varying speed from transmission to the driven shaft ?
when the friction whichcraft happens in a clutch, then it transfers power straight to the transmission. And the speed then depends only on engine's RPM, because the clutch is still engaged
where it is used? What is the common type of clutch used in Four wheelers
Am i the only one who thinks he should do a parallel-twin enigne found in the Nuda 900 /r and a few BMW bikes? the sounds that it makes are orgasmic
thank you very much sir
What happens if there is no clutch and if directly engine is connected to driven shaft
Im building an 80cc bicycle and it doesnt have this style, it uses a clutch similar to a car with individual pads on a disk???
this is great i use them on my RC Nitro cars . But how does it work on the kawasaki H2 . please make a video on how the supercharger and a Slipperl clutch works on a kawasaki H2 . thanks :)
Thank you!
Great video, Jason! Can this also be used in cars?
Praval Telagi Typically used for much lower torque applications, as you'd likely have slip and generate too much heat if you used it with more powerful vehicles.
Just wondering, what's going on with the Integra build?
what I don't get, though, is how my Honda Silver Wing scooter can hit 75 mph (no problem), but to that point I hear no shifting of gears. It can't be that there's just one gear, so how does the shifting take place within a centrigal clutch?
Why this is not used in car?
Not enough friction to hold the larger engine torque? What about larger clutch area?
Nice video Engineering Explained! Could you do a driven gear/transmission as well? Thank you ;)
Explain how does a vehicle move from rest when it doesn't have the RPM enough to engage the clutch shoes.
Well I think that's the idea, like the clutch only engages if the RPM is high enough.
Also, note this isn't how normal car clutches work. There isn't enough control with this design to work on the road.
Review a honda fit!
So for vehicle, this kind of clutch is only used for automatic vehicle. Am I right?
Great. So that's actually why people call those little-engine powered vehicles automatic? They use a clutch that engages and disengages automatically, depending on the RPM. Is that so?
+Stefan Ovcharov Chainsaws have this too
i've always wondered how motorbike torque is applied from engine to rear wheel. now i know!
Captiv4te
Most motorbikes don't use this. Only 50cc mopeds/scooters..
Probably because the method can't transfer a lot of torque; the friction is purely generated by the centrifugal force.
Motorbikes just use a regular multiplate, hand operated clutch.
Captiv4te I would imagine most use a more traditional clutch, multiplate to keep the diameter and size down. That said, there are adaptations of centrifugal clutches (a bit more robust than shown above) that can be used in bikes: ua-cam.com/video/_SECYempg4M/v-deo.html
Engineering Explained
Well yeah,
There are also motorcycles with automatic gearboxes... still I wouldn't choose a motorcycle as the thumbnail for an automatic gearbox video ;).
DoubleYouPee mopeds below 150cc uses centrifugal clutch
Zhi Hao Looi Yeah, true.
Probably a few higher CC scooters as well.
What are the downsides to adding a centrifical clutch to your motorcycle?
idk about you but thats cool af
Is it possible to replace a centrifugal clutch in a scooter(CVT driven, 110cc) with an electromagnetic clutch? And tine the timing and engagement to the speed of the engine at which centrifugal clutch engages?
Please reply ASAP.
If you didn't know how it worked you never had a childhood
How’s your day off going Cameron Frye? 😭
Hmmm.... I see alot of car videos here. >.>
Maybe more motorcycle videos and then I'll subscribe x3
Maybe FOR EXAMPLE, explaining a v-triple w sort of motorcycle engine, or the different types stroke engines (5 stroke and 6 stroke etc)
I suck at explaining I know.... surry. -.-
Good Boy.
hey, why dont we use them in our daily cars....what are the disadvantage....can't they take the power of a normal car ?
Exactly, wouldn't quite hold the torque, probably less efficient.
video is blurry and cant see the board that good
Thank you for the video. But I still want learn how to ride a motorcycle such as the manual Honda Super Cub 50 without clutch lever (understandably instead using Centrifugal Clutch). Regards.
No questions or comments.
hi
Rekluse...
joe schultz Yep, same idea but it uses steel balls that sling out, applying pressure to a traditional multi-plate clutch.
Engineering Explained Steel balls are also used in motorsport.
No pros and cons? You can do better videos.
If you're gonna be talking about centrifugal clutches, at least learn how to say it first...
minnsminns In the states in pronounced Centri-figal (the way engineeringexplained pronounces it) and most other places its pronounced Centri-few-gul, He's not not saying it wrong, he's just saying it in the way that his dialect of English says it.
People get so caught up in semantics. I probably pronounce caramel, pecans, theater, and a hundred other words differently than you do as well. Language evolves and adapts within various regions.
Yeah, damn those pedantic people who actually say words correctly! I should be able to say them however I want to!
Its not a matter or wrong or right, in the states he says it the right way, get over the fact that he speaks a different dialect of English and move on with your life. Its a pretty simple concept, you're a big boy, you should get it.
Thank you!