Basics of Sprockets and Roller Chain

  Рет қаралды 122,512

BuildYourCNC

BuildYourCNC

Күн бұрын

This is a video series on the fundamentals of mechanical parts. In this video, I go over some of the basic information and uses for sprockets and roller chain.
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Пікірлер: 53
@briandenzer
@briandenzer 9 жыл бұрын
Conceiving a project requiring a sprocket & chain assembly, but having no engineering background, I was able to completely follow the presentation. Nicely done, and really very much appreciated. Thank you.
@tomgucci554
@tomgucci554 4 жыл бұрын
thank you.. I've dealt with machines utilizing all these concepts and fully understand how the mechanics work.. but never thought about why certain parts wear down in that manner
@Gallardo6669
@Gallardo6669 3 жыл бұрын
I talked years ago to Mrs rohloff from Kassel Germany regarding bike chains and their speedhub. She said the force delivered by the chain is gone after the 3rd engaging tooth! So against my initial believe more engagement doesn't mean sprocket has less stress or wear
@chrisl9067
@chrisl9067 2 жыл бұрын
Using your equations would cause inaccuracies if you machined your own sprockets. PCD (pitch circle diameter) = pitch (1/sin[180/#of teeth])
@krushnanavgire2868
@krushnanavgire2868 6 жыл бұрын
I also work on cam chain and I got a very good knowledge by your footage . thank you
@MIKh500
@MIKh500 3 жыл бұрын
Aww, I hope that kid in the background grows up to be a great engineer like you someday
@valentinlishkov9540
@valentinlishkov9540 3 жыл бұрын
www.onlinecadtools.com/myindex_en.HTM www.onlinecadtools.com/english/html/sheet_metal/index.HTM www.onlinecadtools.com/english/html/index_gears.HTM www.onlinecadtools.com/english/html/index_curves.HTM free
@leifhall2289
@leifhall2289 3 жыл бұрын
I'm sorry but I believe your formulas are incorrect. To calculate the pitch diameter you should use pitch/sine(180/Z). The reason is that the chains links will make a straight line between the teeths of the sprocket. Imagine a 6 teeth sprocket, the chain will form a hexagon around the sprocket and then you need to use 3 instead of pi to calculate the radius of the sprocket.
@PatrickHoodDaniel
@PatrickHoodDaniel 3 жыл бұрын
Thanks. The correction is much appreciated.
@pappyfiddle
@pappyfiddle 8 жыл бұрын
One minor caveat... The links of a chain wrapping around a sprocket don't form a circle, they form a regular polygon with number of sides = number of teeth, and length of side = link pitch. The circumference of the "pitch circle" is a little larger than the perimeter of that polygon. See wikipedia, "regular polygon". For sprockets with just a few teeth, the effect is worse. For a 10-tooth sprocket, the difference is almost 2%. This would ruin a high-precision design.
@RedBoarChain
@RedBoarChain 11 жыл бұрын
Great information! Thanks.
@THCMusicBlog
@THCMusicBlog 4 жыл бұрын
how do you write at that angle ?? this helps a lot btw thank you for the info!
@maryumiftikhar8588
@maryumiftikhar8588 5 жыл бұрын
can you guide me how i make calculation to find no of teeth on gears in designing of chain and sprocket mechanism
@donaldcampbell7894
@donaldcampbell7894 5 жыл бұрын
Blows my mind also. Not sure why you would not inform viewers that circumference is not practical. After your pitch x number of teeth theory tell them to divide their answer x pi. Then you get a practical number. Diameter. That’s the number we program our CNC with. Circumference is what we learn from a high school trig teacher. Circumference would only be useful if I was trying to calculate surface footage. Thanks though.
@sryth1
@sryth1 10 жыл бұрын
Excellent video! The algebra is a bit off putting, though: d = c/π
@venkatpuneeth
@venkatpuneeth 3 жыл бұрын
Good Explanation.... 👍
@pacovasda5955
@pacovasda5955 7 жыл бұрын
Right on. Nice video.you should make a rig to hold the ends of your chain for you. And to be your axis. but it is a nice video. A bit hard to find. I should have run across it years ago. Thanks.
@PatrickHoodDaniel
@PatrickHoodDaniel 7 жыл бұрын
Thanks for the kind words!!
@bobviously
@bobviously 12 жыл бұрын
Nice!
@MrRockstar1968
@MrRockstar1968 10 жыл бұрын
Hi, I have to say I enjoyed your footage on & found it very informative. I'm wondering if you could give me some advice though? I bought an unfinished project of a trike & have been doing alterations. The engine is from a Honda CB750 & have found that the back sprocket, for the back wheel on the original bike is 46 teeth yet the trike only has 36 teeth on it's back end. I'm wondering in what way will this effect the performance of the engine & would you advice I put a smaller front sprocket on?
@CharlieGosh
@CharlieGosh 5 жыл бұрын
My dad modified his motorcycle by swapping the front (drive) sprocket with a smaller diameter part. It had more pickup and pep (of course). It also had a lower top speed, shifted sooner, and more chain and front sprocket wear. Putting a smaller sprocket on the rear wheel (driven) end would do just the opposite but still wear faster. People used to change the "rear end" (differential) in cars all the time.
@annaadams7102
@annaadams7102 2 жыл бұрын
Thank you very much for your video! Can you please help me with the following question? How can I differentiate Sprockets and Gears. I mistake *Spur gears* and *Sprockets*
@annaadams7102
@annaadams7102 2 жыл бұрын
..I mean, how are they different by their look?
@PatrickHoodDaniel
@PatrickHoodDaniel 2 жыл бұрын
The geometry of sprockets are very different than spur gears. For one, sprockets are generally larger than most spur gears made for similar torque specifications.Sprockets also have a rounded section between the crests.
@tedjohansen6535
@tedjohansen6535 2 жыл бұрын
I believe spurs/gears are designed to interface with other spurs/gears, and sprockets are designed to interface with a chain/belt. Easiest (but not perfect) thing to look for is probably the width. Good question - I had to do some research for myself and share here!
@TheUnofficialMaker
@TheUnofficialMaker Жыл бұрын
whats all the background noise?
@diversity2739
@diversity2739 4 жыл бұрын
thanks Patrick
@PatrickHoodDaniel
@PatrickHoodDaniel 12 жыл бұрын
@WalneySkyland You're welcome.
@dave9343
@dave9343 Жыл бұрын
Hello, I am working on a project that uses magnets. Could you please say if there are aluminum or non-ferrous roller chains (small pitch) available. Thanks very much.
@PatrickHoodDaniel
@PatrickHoodDaniel Жыл бұрын
Stainless steel roller chain is widely available which is far less magnetic than steel. I don't think there is aluminum roller chain.
@homeramanu
@homeramanu 7 жыл бұрын
Hi. I am I can get español.donde pinion gears. gracias.muy greetings and good videos.
@TrainsCatsOtherStories
@TrainsCatsOtherStories Жыл бұрын
I've noticed these guys sell roller chains on their site. Has anyone purchased from them before? And were you satisfied with them?
@seagangstab2637
@seagangstab2637 9 жыл бұрын
Cool video thanks for posting!! Its so bizarre watching south-paws write ;)
@tomasetas
@tomasetas 7 жыл бұрын
I have some questions I could really use some help with. It involves sprockets and motor speed, would anyone be willing to assist me?
@RollingEasy
@RollingEasy 4 жыл бұрын
I know its a bit late but I'm happy to help....
@seanmc5238
@seanmc5238 6 жыл бұрын
You my friend are a cool dude 😏
@DCBpower
@DCBpower 7 жыл бұрын
Kids, gotta love them. lol
@PatrickHoodDaniel
@PatrickHoodDaniel 7 жыл бұрын
I know. Back then, there was not much quite around here.
@bldjln3158
@bldjln3158 6 жыл бұрын
What are the names of the different types of sprockets?
@PatrickHoodDaniel
@PatrickHoodDaniel 6 жыл бұрын
Idler sprockets that turn freely and are used for positioning, and drive sprockets which are coupled to a shaft of a motor or something equivalent. the drive sprocket is meant to move the chain or move something along the chain (depending on how it is configured). There are also numbers associated with the size of the sprockets, such as #25, #35, #40 ... the lower the number, the smaller the roller chain.
@valentinlishkov9540
@valentinlishkov9540 2 жыл бұрын
Drive chain sprockets
@csselo
@csselo 6 жыл бұрын
25h?
@Ralphl100
@Ralphl100 5 жыл бұрын
Distraction family noise in background!
@garnetacealbright
@garnetacealbright 2 жыл бұрын
A good video but the background NOISE is TOO MUCH, next time you know what to do.
@PatrickHoodDaniel
@PatrickHoodDaniel 2 жыл бұрын
I know. This is an old video. I will make a new one soon.
@saucecircuit9992
@saucecircuit9992 2 жыл бұрын
Noise in the background is very irritating
@SuperOpinion8ed
@SuperOpinion8ed 10 жыл бұрын
It just blows my mind how many people on KZfaq take the time to make a video and then crap it up with some controllable issue. I mean, come on guy. You're one of the FEW people who have a GREAT video in terms of content, explanation, camera work, and even your audio! Most people have their hands in the way, camera out of focus, spend half the video telling some unrelated story, or whatever. But you've got it so close to good, why in the hell would you have some child constantly talking in the background!? "Hey honey, I'm going to be making a video for about 10 minutes. Think you could go watch some Veggie Tales or something?" And you have the white paper for good contrast...might have been nice to cover the whole scene in white paper. For 10c more in paper, you'd have an even better background. It's SO easy to make a decent video. You're closer than most. Just tweak some obvious stuff next time. Thanks for the effort in any event.
@PatrickHoodDaniel
@PatrickHoodDaniel 7 жыл бұрын
Tougher than you think. I try my best, but sometimes it is just better to keep my family happy.
@seanmc5238
@seanmc5238 6 жыл бұрын
I'm glad he had the family in the background 😉 especially the kids, I rate him a lot more for not locking himself away to film sprockets on his bill, instead the kids are just bouncing round a really laid back scene absorbing the knowledge this man has shared with us 😂 love it mate family first, bet your kid invents something 😋 take it easy bro good video
@nomoreheroes93
@nomoreheroes93 6 жыл бұрын
Or do it after the kids have gone to bed? I agree, why make this much effort but throw away any chance a teacher or lecturer would use it to demonstrate to a class by having the noise in the background.
@___aaron.m7930
@___aaron.m7930 5 жыл бұрын
Shut the fuck up
@CharlieGosh
@CharlieGosh 5 жыл бұрын
If I had my choice between hearing the kids and not getting the video at all . . . I'd pick "video with minor warts." Thank you, Patrick, for all your work that benefits us all. ** P.S. A "cardiod" mike is very directional, used to block off-axis sounds.
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