Gear Types, Design Basics, Applications and More - Basics of Gears

In this video, we will demonstrate the function of gears with animations, graphs, and some basic equations. Also, we will cover a few important nomenclatures of gears. The following types of gears will be covered:
1) Spur Gear
2) Helical Gear
3) Double Helical Gear
4) Bevel Gear
5) Worm Gear
6) Hypoid Gear
7) Rack & Pinion
8) Internal [Ring] Gear
9) Magnetic Gear
Also, We will cover some basics of gear designs by covering three related topics of gear profile, gear ratio, and gear pressure angle.
In the end, we will demonstrate all the earlier mentioned types of gear applications in real engineering devices with animations. The applications will be as the following:
a) Hydraulic Pump [Spur gear]
b) Manual Transmission [Helical Gear]
c) Vehicle Differential [Bevel gear]
d) Truck Rear Drive Axle [Hypoid Gear]
e) Conveyor Belt [Worm Gear]
f) Car Steering System [Rack & Pinion]
g) Planetary Gear [Ring Gear]
h) Magnetic Gear Components

[@osirismachining6994]

This is one of the best videos I've seen on gears so far. Thanks for the content!

[@CAEPlus]

Our pleasure. Glad you enjoyed it and thanks for your kind comment!

[@M3t4lik]

One of the best videos out there on the fundamentals of gears and gearing relative to real applications with the necessary basics clearly explained. Thank you!

[@CAEPlus]

Glad you enjoyed it! Thanks for your nice comment.

[@coldchocolate1254]

Holy heck, this is just the perfect video about gears, thank you truly

[@CAEPlus]

Appreciate your nice words! Glad you enjoyed it.

[@AVOWIRENEWS]

Gears are such an incredible invention! They're fundamental in so many machines and devices, from watches to cars. It's fascinating how different types of gears can be designed to suit specific applications, each one playing a crucial role in making things work smoothly and efficiently. The science and engineering behind gears really showcase human ingenuity and our ability to solve complex mechanical problems. It's always exciting to learn about the basics and see how these components have evolved over time to become essential in our daily lives! 🌟👏🏼💡

[@deevox-01]

Thank you so much for this video, it helped me visualize the problem(figure) in my studies in machine design.

[@CAEPlus]

Excellent and you're very welcome! 🙂 We are glad it was helpful to you in your machine design studies. If you have any more questions or need further assistance, please feel free to contact us.

[@amosdenenjuliusidyuran4878]

I am a Mechanical Engineering student, in my early career stage I hold this video in a very high esteem, it gives me a broader insight on gear profile and technology. I look forward with keen interest on your subsequent videos in this gear series and other areas of engineering interest, Thank you for the educative video.

[@CAEPlus]

It is a pleasure for us to aim to help students like you with our educational videos. We are delighted you found this video helpful! Best of luck in your education and future career✌. Also, thanks for your kind comment! 🙏

[@Deontjie]

Did your lector at university also played annoying distracting background music along with his lecture?

[@mohammadsabzi4090]

Pretty good video for learning about the fundamentals of gears! Thank you.

[@CAEPlus]

Glad it was helpful!

[@maksymriabov1356]

Magnificent. I am inventing a machine of sorts and needed the video to explain me gears and how they work. Props to the author!

[@hishwaar]

what machine are you inventing?? I'm quite curious

[@gokugourmet5286]

​@@hishwaardildo machine

[@CAEPlus]

Glad it was helpful. Awesome, thank you! 🙂

[@Jubjub9000]

We need updates on this "machine of sorts" :)

[@vishalsoni8215]

Great Video. done a great job by just giving every short detail required.

[@CAEPlus]

Glad you liked it. Much appreciated!

[@RyanSmith-hl1io]

Great video, simple enough to be able to relate to. Nice work

[@CAEPlus]

Glad you liked it! Appreciate for your nice comment.

[@arturodominguez6916]

Hermano lo mejor que pude ver en KZbin el día de hoy exelente

[@ma-lakshmifabricator7549]

Overall, this is a highly informative and enjoyable video for anyone interested in engineering. It showcases your talent and expertise while providing valuable insights and inspiration to fellow enthusiasts. Keep up the great work, and I look forward to watching more of your content in the future 👍👍👍

[@CAEPlus]

Thank you very much for your supportive comment!🙌 We are really glad you enjoyed it. Stay tuned for more videos!

[@user-ev5ur7fw4t]

Very well put. Keep up the good work. Thanks.

[@CAEPlus]

Thanks a lot, will do!

[@Ronnock]

This was an amazing production. Please keep on going! *Subscribed*

[@CAEPlus]

Thank you! Will do! Also appreciate for the "Sub"!

[@Ronnock]

@@CAEPlus you're welcome!

[@chetananam9141]

Watched this video out of curiosity. Speedy at certain points but Nicely explained- especially for non-mechanical engineers.

[@CAEPlus]

Thank you! Cheers!

[@yayingzhang1506]

Very informative! Learned a ton! Thanks so much for making this.

[@CAEPlus]

Glad it was helpful!

[@averagedudeusa9722]

this is an excellent video! thanks for sharing.

[@CAEPlus]

Glad you enjoyed it! You're very welcome!

[@drishtirai864]

Informative! Tomorrow's my Exam.. Thank you so much for this... Loved it..!!! 😊✨ Keep it up...!!!

[@CAEPlus]

You're welcome! I'm glad you found the information helpful. Best of luck with your exam! ✌

[@aureliorodriguez5275]

Excellent video! Thanks.

[@CAEPlus]

Glad you liked it! You are welcome!

[@letsgosurfingdude]

Very Nice! I am a Mechanical Engineer, trying to go back and learn the details.

[@CAEPlus]

That's fantastic to hear! If you have any questions or need further insights as you explore these concepts, feel free to reach out. Happy learning!

[@user-rn2jj4kt9o]

Indeed it's a great slide, waiting for lessons

[@CAEPlus]

Thank you! Glad you found it useful. We are planning to roll out some lessons in the near future. Please stay tuned for more details.

[@dmknight08]

This video is amazing. If you designed an engineering program, I would buy it.

[@CAEPlus]

Thank you very much! We might get there one day 🙂. Still, it is very kind of you.

[@Christian-.]

thanks for the helpful video 🙏

[@CAEPlus]

Glad it was helpful! Our pleasure 🙂

[@vmx7236]

Plz, make a video about bearing. Love this work

[@CAEPlus]

Great minds think alike! 😉 Our team is working around the clock for the past two months on a video about bearings. I appreciate your suggestion and rest assured, it's already in the works. Our estimated time of upload on KZbin is Aug 1, 2023. 🤞

[@adetonajamiu6284]

Love the last clutch

[@CAEPlus]

Cheers! 🙂

[@hd-be7di]

Great video! Some 3D printer extruders (like the Orbiter or Galileo) also use planetary gears!

[@CAEPlus]

Glad you liked it. Also thanks for the tip!

[@madcow3417]

Thanks for the subtitles. The music was way too loud in places.

[@CAEPlus]

Thanks for watching!

[@CombatTrap2-6]

Great Video. Tnx.

[@CAEPlus]

You're welcome. Glad you liked it!

[@brettmoore3194]

I love that phys ical gears and electrical magnetic transfotmers have so much in relatiims🎉

[@CAEPlus]

Cool, happy you found them interesting. Thanks for your visit!

[@Itsdirtnaptime]

The part where you are talking about a high point gear. I can't help but link that to machining on a lathe. Most people think having the tool at center of the part is ideal. It isn't. And being under the centerline would cause the part to climb over the tool. Which I assume would have almost the same effect with this style of gear. I only mention this because in turning on a lathe, you want the tool slightly above center.... "for better wear resistance" on the tool. (And a more consistent cut) Seems a bit coincidental, doesn't it? Almost like one learned off the back of another manufacturing style. 😅

[@ilovemath9749]

This was really helpful

[@CAEPlus]

Glad you found it useful!

[@DidarOrazaly]

Thank's a lot for education video.👍

[@CAEPlus]

It's our pleasure. Glad you found it useful.

[@alexyu8534]

Good explanation! Thank you!

[@CAEPlus]

Glad it was helpful. Thanks for your comment!

[@sebo1337]

It is true that helical gears can handle more speed than spur gears and are used in almost all car transmissions. Nevertheless many racing transmissions and most motorcycle transmissions are using spur gears.

[@CAEPlus]

Correct, racing cars/motorsports use spur gears in their transmission due to their higher efficiency. In addition, spur gears don't generate any thrust (axial loads); thus, the overall transmission design can be lighter which is critical in a motorsport configuration (To handle the axial loads, helical gears necessitate the use of heavy-duty transmission casings, shafts, and bearings). Still, the incredibly high noise the spur gears generates makes them less desirable for being used in the transmission of regular cars (except the rear gear in older cars that used to be a spur gear).

[@carultch]

@@CAEPlus Why don't automotive transmissions simply use herringbone gears to null the axial thrust, rather than transmitting it to the bearings? Is there an advantage to using helical gears with axial bearings, instead of using herringbone gears and radial-only bearings?

[@stevenrs11]

@Carl Hansen Herringbone gears are substantially more expensive to manufacture, and can be tricky to assemble.

[@carultch]

@@stevenrs11 Thank you for answering and that makes perfect sense. So it is a matter of tradeoffs, that axial bearings are a more economical choice to herringbone gears, in terms of which one is easier to construct. Are there any performance tradeoffs between the options of herringbone gears with radial-only bearings vs helical gears with axial bearings? Such as does one of these have better friction or efficiency characteristics?

[@spixy16]

@@CAEPlus yeah the noise is bit annoying kzbin.info/www/bejne/mp6teWtqe9OEl5o

[@christinakellyleo8731]

Very well explained with animations and all.

[@CAEPlus]

Glad you enjoyed the video.

[@mhick3333]

Great presentation

[@CAEPlus]

Glad you liked it. Thanks for your comment!

[@baaiiimmmm]

Thank you !!

[@CAEPlus]

You're welcome! Glad you liked it.

[@boristopalov4576]

I really enjoyed the video, but the music was a bit too loud. Otherwise, best gear video I've seen so far

[@CAEPlus]

Glad you liked it. Noted about the music! Thanks for your kind comment!

[@octaviosandoval4633]

Excellent video, I learned a lot! :-)

[@CAEPlus]

Glad it was useful 🙂. Thanks for your comment!

[@NoosaHeads]

Excellent.

[@CAEPlus]

Many thanks!

[@tombouie]

Well-Done

[@CAEPlus]

Thank you!

[@hieunguyenvan8065]

Thanks for the good video

[@CAEPlus]

You're very welcome! Glad you liked it.

[@nickvoutsas5144]

clear explenation

[@lbt2724]

This is so interesting omg

[@chundrusatyanarayana3161]

Nice explanation

[@CAEPlus]

Thanks for liking!

[@kingshukmandal8111]

Nice video....

[@CAEPlus]

Thanks for the visit!

[@amirrezafree4522]

The best video a bout Gears i ever seen ...

[@CAEPlus]

Thank you for your kind comments!

[@ahmad_tharwat1]

Great Video❤❤❤

[@CAEPlus]

Glad you enjoyed. Thank you!

[@sonicking98]

Amazing and very useful for mechanical engineering students

[@CAEPlus]

Glad you you liked it!

[@exhozttv3627]

May i know what's the name of your background music? so calming, nice explanation btw

[@elkanasback8743]

Great work, keep going 🤍✨

[@CAEPlus]

Definitely, with your support 👍. Thanks for your comment!

[@058sumitshukla4]

Excellent teaching skill.

[@CAEPlus]

Many thanks!

[@user-ve4yj4de4g]

Excellent video, educative and on point.The background sound is a bit too loud, louder than your own voice.

[@CAEPlus]

Happy you liked it. Thanks for the tip!

[@moviemusicvideochannel7102]

I can't believe you have less subscriber than 1 million. It was a great video useful for everyone not just for mechanical engineering students.

[@CAEPlus]

Thanks for your kind words! Really glad you liked it.

[@Deontjie]

@@CAEPlus Maybe if you eliminate the background music?

[@rhemaislife]

Thank you

[@CAEPlus]

It is our pleasure. Also, thanks for watching! 🙏🏻

[@-30h-work-week]

It makes sense for helical to produce axial thrust. But when using two gears that have opposite angles shouldn't they cancel each other?

[@CAEPlus]

Thanks for your question! Correct, the axial thrust force can be canceled by using a double helical gear (herringbone). Even though there is a net zero axial force on the shaft with a double helical gear, the axial loads should not be ignored. These forces create a moment that must be counteracted by the bearings and must be included when calculating bearing loads during the gear engineering design process. This is one of the main reasons why helical gears have a lower efficiency than spur gears. I hope we were able to answer your question!

[@Ahmed-mg2yd]

Really thankful to you!

[@CAEPlus]

You're very welcome Ahmed! Glad you liked it.

[@gavinsu919]

Great Videso for Gears! mark

[@CAEPlus]

Glad you liked it. Thanks for watching!

[@prashantyadav9890]

thanks

[@CAEPlus]

You're welcome!

[@trevinbeattie4888]

Something I didn’t see mentioned is how to choose the number of teeth to use in each gear when their ratios are low (but not 1:1) or the number of gears to use for high ratios. In particular, would it make sense to use numbers that are relatively prime in order to evenly distribute the wear between pairs of meshing teeth? What are the pros and cons of using a few large teeth versus lots of small teeth?

[@Amipotsophspond]

this is a material question, so the best way is to think about this in a extreme way. if I make really really small thin teeth like we are talking tin foil thin then rather then turning the gear it will fail because the foil thick teeth bend and break. so that's why you don't want too thin. so rather then starting with 2 gears lets start with 1 gear. so their are 360 degrees in a circle let's pretend each gear is 1 degree you have a stick that's on a line that enables you to push only one gear at a time. you push the 360 teeth gear and move the gear exactly 1 degree you push it 360 times and you have made 1 rotation let's say you lifted a 1 pound weight 1 inch in doing so. now let's say we have a gear that has 30 degree gear teeth meaning their are 12 of them on the circle, you push it with your stick on a line and you move the circle 30 degrees you push the gear 12 times and you make 1 full rotation and lift the 1 pound weight 1 inch. the weight and the distance stayed the same so it takes less torque to do it 360 times vrs 12 times. the lever, pully and gear are all the same they are taking doing something a lot and trading for using greater effort the lever moves a greater distance, the pully uses more rope, the gear turns the circle a smaller amount all basically the same thing.

[@JainZar1]

If you ever do a more indepth video on gears, you should also address harmonics, as that is a crucial design feature for gearboxes most people overlook.

[@CAEPlus]

Very good point! We are planning to cover more complex gear mechanisms (Planetary gear, strain wave gear, etc.) used in transmissions/gearboxes in a separate video. Thank for your comment!

[@landonvaughn7465]

Feel like I’m in the Tron movie preparing for my maintenance test!

[@jimsmith9912]

Thank you.

[@CAEPlus]

You're welcome!

[@user-hp5cu8hz5w]

very nice. but how we can make such a video ? I should have to learn graphic design to make such interesting video ?

[@marshalllapenta7656]

This was a good one

[@CAEPlus]

Glad you enjoyed it!

[@retd.lt.col.pratapsinghraj4154]

lovely my boy

[@CAEPlus]

Thank you very much Sir! 😊

[@user-ct9ts2oj1r]

If you had a spherical ball would it allow better turns? Like a Dyson ball?

[@CAEPlus]

Correct, a gear similar to the spherical ball in Dyson vacuum cleaners can offer improved maneuverability and ease of turning. For instance, unlike traditional gears that primarily rotate along one axis, a spherical ball gear will be capable of moving in any direction. This omnidirectional functionality allows for sharper, more fluid turns in the mechanical linkages connected to the gears, thereby improving overall operational efficiency. Recently, Japanese engineers and scientists have conducted significant research on spherical (ball-shaped) gear designs. This innovative work is currently still in the research and development phase, reflecting ongoing advancements in the field of mechanical engineering. Please let us know if you would be interested for a video on this subject. Thanks for your comment!

[@marcus.guitarist]

Solid video. Nice background music.

[@CAEPlus]

Glad you liked it! Thanks for your nice comment :-).

[@amirrezafree4522]

This video is powerful video

[@CAEPlus]

Glad you found it useful!

[@subhashpattoor440]

The gear box at rear shaft of 4 wheeler is differential,epicyclic gear system is a co Impact useful drive in automobiles

[@CAEPlus]

Thanks for the information!

[@airmag]

Can you please tell me the artist and song name? It's perfect for studying. The video is great by the way.

[@mujeebrahmanrahman7970]

Very nice

[@CAEPlus]

Thank you!

[@slimekinglp9194]

I dont know what i have done right but i like it! I watch videos like this, im a pretty good skateboarder, own a 3d printer, play D&D, im really well in shape ,have an active social live and a girlfriend… 😂 i shouldn’t exist

[@CAEPlus]

Thanks for watching!

[@loren3964]

You're right!

[@-HEMa.]

هذا الفيديو رائع جداً

[@CAEPlus]

Reply based on Google translation 🙂: Glad you liked it. Thanks for the comment!

[@jaybailey3518]

Wonderful video, good work! Too bad you had to put music in it.

[@CAEPlus]

Happy you liked the video! Next time we will adjust the music level. Thanks for your comment, though.

[@euphehassan1509]

I was just chillin but now after completing half of it I have a pen and a paper in my hand lol

[@CAEPlus]

We are thrilled to hear that our video has sparked your interest to the point of taking notes! 😊

[@alexboyd4719]

Hello there. Great video. Very informative. I appreciate the music and was wondering what the name of the music is?

[@CAEPlus]

Hi Alex, Very glad you enjoyed the video! Also, thanks for your nice comment. Sure, please let me check with our animator and get back to you with the name of the music .

[@MirusWoozy]

Did you finally manage to get the information about the track name? Superlative video! Excellent explanation and animation and wonderful music!@@CAEPlus

[@chaimaeboualam8757]

Great video .. U just need to lower the music volume a little bit

[@CAEPlus]

Glad you liked it! Sure, we will adjust the background music in our future videos. Thanks for your comment!

[@elizabethsamuels2256]

does the worm gear and the wheel gear attached to it move in the same direction? And also, if we were to have a straight bevel gear with two gears horizontally on it would they both move in the same direction?

[@CAEPlus]

Thanks for your question, and sorry for our late response. Actually, the axes of rotation of the worm gear and the pinion are different. So the direction of rotation will be on different axes. However, if you mean, the worm gear can rotate in both directions with a helical gear? The answer is "Yes"; worm drives can be built with helical gearing that is either right-hand or left-hand, allowing them to rotate in clockwise or counterclockwise directions. For instance, a right-hand helical gear rotates the worm clockwise or vice versa. Regarding your second question, if a straight bevel gear has been meshed with two gears horizontally, each of the meshed gears will have an opposite direction of rotation. So if you are looking at the bevel gear from the side, one gear will be rotating clockwise and the other counterclockwise. I hope we were able to answer your question.

[@carultch]

The bevel gear you are describing sounds like a crown gear. A crown gear is a bevel gear taken to the extremes, so it can interface with a spur gear on the perpendicular shaft, rather than another bevel gear.

[@pgrvloik]

nice but the background music is way too loud, the voice should be well above the music

[@CAEPlus]

Thanks for the feedback. We have fixed this issue in our recent videos. Please check them and let us know if you are happy with the changes.

[@gianlucap634]

awesome video, just the music a bit too loud

[@CAEPlus]

Glad you liked it. Thanks for the note! We have reduced the music volume level in our newer videos.

[@electron46]

From a visual perspective, your video is terrific. However, I bailed quickly after tiring of the needlessly loud background music.

[@sikhanyiseledaweti]

i like how they made the subscribe button glow

[@CAEPlus]

👍

[@mdmizanurrahman2629]

Your video is very efficient and quality but a little bit occurrence that the background sound is very annoying. It is difficult to concentrate your voice due to annoying background sound

[@CAEPlus]

Glad you found the video useful. Yes, we have took note about the background sound and have adjusted its level in our newer videos. Thanks for your comment!

[@LL-yg6fx]

Hello, great! Do you have 3D models to print them?

[@CAEPlus]

Hi, unfortunately we don't have the STL files handy for these type of gears. We are planning to add them sometime soon in our membership plan, so you can download them for there. We will inform you as soon as they are ready.

[@rico2207]

Yes the music is a distraction??

[@user-tf8cb9ke2l]

기계 설계제작 업체주소을 가르처 주시면 매우 감사하겠습니다

[@a7med088]

Thank you for sharing this video, what is the purpose of the music? DISTORTION

[@CAEPlus]

Noted. You're welcome and thanks for your comment!

[@nilsrp]

Music is too loud and strictly not necessary. Good video.

[@CAEPlus]

Noted! Thanks for your comment.

[@DOGRUYUBIL]

what programs are you using, please can you write

[@CAEPlus]

We use multiple different software to create these videos and it requires a good skill set to utilize those software. For instance to achieve high accuracy for the gears ⚙️ geometry we 3D modeled them with a CAD software. There are multiple CAD software available in the market (SolidWorks, CATIA, ProE, Siemens NX, etc.). Any of them can be used for this purpose.

[@stonedyeet2675]

Have you covered strain wave drives as well as cycloidal disk drives?

[@CAEPlus]

Thanks for your comment! Actually, "Strain wave gearing" is a special type of gear, and its working fundamental is very similar to a ring gear. Regarding the "Cycloidal disk," we will be creating a video for hydraulic gear pumps and will cover a similar coupling drive in that video. Our intention for this video is to introduce the most commonly used gears in the industry. I hope we can cover the two other types of gear/coupler in our following videos.

[@stonedyeet2675]

@@CAEPlus ok sweet. I know a fair amount about the 2, but I just wanted to see if there was a video you had produced on the topic. They are a lot less known. I’m excited to see those videos. I’ll make sure I have my notification bell checked for this channel

[@CAEPlus]

@Stonedyeet Of course, thanks for following our channel!👍

[@krishath7085]

Great video but the music is unnecessary distraction. Thank you

[@CAEPlus]

Ok, glad you liked the video. Thank you!

[@kh2140]

Are elliptical gears still made?

[@CAEPlus]

As far as we know, yes, elliptical gears are still made and in use and are an important component in specific mechanical applications where their unique properties are required.

[@user-co3lj7wn4z]

소음 과 비율 대비 효율 이 가장좋은 것은

[@CAEPlus]

According to the translation, you are asking about the efficiency of gears vs their noise, correct?

[@pekertimulia125]

Used to be control of valve any

[@CAEPlus]

I am not sure if this is a question or just a comment. Correct, the camshaft function is to ensure the engine's inlet and exhaust valves are operating at the right time, with the exact stroke and in a precisely defined sequence.

[@homemdoespacobr]

background music volume too high

[@CAEPlus]

Noted!

[@AK0SKA]

Am I the only one that hates the music? And why do I think that it is totally unnecessary?

[@CAEPlus]

We got few comments about the background music and will adjust it in our following videos. Thanks for your comment, though!

[@andrewwolf4430]

And for us old farts the background noise makes it very difficult the hear

[@CAEPlus]

@@andrewwolf4430 We will get this fixed in our following videos. Thanks for your comment!

[@boyd21]

You might want to watch and listen to your video before you send it out.

[@CAEPlus]

@Boyd Pennington Of course, we check our videos before posting them on KZbin as we take the effort to create them 😉 (which, by the way, takes a very long time). The background music level sounded okay to us, but after receiving the feedback, we will reduce it in our upcoming video.

[@n.s.shankar]

The bgm spoiled the narration despite excellent narration

[@CAEPlus]

Glad you liked it!

[@AYMEN543]

ما هو اسم الموسيقى 🙂

[@shamsheralam8862]

Please give me your suggestions for the software you used to make such vedioes

[@CAEPlus]

Actually, we use multiple different software to create these videos (engineering, animation, graphics design). So each team/person creates their section in the corresponding software, and later we assemble the footage into one part.