What is Bearing? Types of Bearings and How they Work?

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Күн бұрын

What is Bearing? Types of Bearings and How they Work?
Video Credits (Please check out these channels also):
[SKF Group] Spherical roller bearings: • SKF Explorer spherical...
[Design Squad Global] How do ball bearings work?: • DSN Animation: How do ...
[SKF Maintenance Products] Mounting and dismounting of Spherical roller bearings: • Mounting and dismounti...
[Thales Nederland] Flexure bearing technology: • Thales and cryogenics ...
Generally, all types of machinery are provided with supports for rotating shafts; the supporting device is known as a bearing. In other words, a bearing is a machine element that constrains relative motions and is used to reduce friction between moving parts.
Bearing employs to support, guide, and restrain moving the element. This is a stationary member, and it carries the load.
The common applications of bearings are:
Shafting in workshops,
Spindles of a machine tool such as a lathe, drilling, milling machine, etc.
The crankshaft of engines, axles of automobiles, etc.
Types of Bearings
Following are the different types of bearings:
1) Rolling Element Bearing
2) Plain Bearing
3) Fluid Bearing
4) Magnetic Bearing
5) Jewel Bearing
6) Flexure Bearing
--- Time Stamps --
00:00 - Intro
00:44 - Types of Bearings
00:57 - What is the Purpose of Bearings?
01:30 - Rolling Element Bearing
02:10 - Ball Bearing
02:51 - Types of Ball Bearings
04:11 - Roller Bearing
04:46 - Types of Roller Bearings
06:14 - Plain Bearing
06:54 - Fluid Bearing
07:26 - Magnetic Bearing
07:56 - Jewel Bearing
08:31 - Flexure Bearing
09:16 - Wrap Up
Disclaimer:
This video is just for educational purposes only. We are not in the auto repair business nor publish automotive service manuals. This video is not reviewed or authorized by any vehicle manufacturer. This video is intended only as general guidance. Every system is slightly different, so refer to the owner’s manual of your vehicle for any specific information about your model. Remember that only proper service and repair procedures will ensure your car's safe and reliable operation.
Copyright Disclaimer:
Copyright Disclaimer under section 107 of the Copyright Act 1976, allowance is made for “fair use” for purposes such as criticism, comment, news reporting, teaching, scholarship, education, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational, or personal use tips the balance favor of fair use.
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Пікірлер: 503

@mrvector257 2 жыл бұрын

Not a big fan of the robot voice, but the video was very informative nonetheless. Keep up the great work.

@joshuamorales1095 2 жыл бұрын

Agreed

@guardrailbiter 2 жыл бұрын

Robot voice plus misspelling Thrust as "Thurst" is even better. 🙂

@ahmadtalha6973 2 жыл бұрын

Off course

@lukelanckriet 2 жыл бұрын

It's better than a British accent

@guardrailbiter 2 жыл бұрын

@@lukelanckriet Which British accent? Every city in England has its own accent.

@Alexandru_Iacobescu 2 жыл бұрын

Hello. I work in a Bearing plant. I would like to add to the types of roller Bearings. First Cylindrical can have a lot of sub types based on if the Outside ring or Inside Ring is fixed and it can be a construction of 1 row, 2 row or 4 row bearing . A combination between the Spherical and Taper roller bearings you can have a Thrust bearing. Taper roller bearings come as well in different types depending on number of rows and type of cage. You can have a cage that is pressed to lock the rollers or a cage that is welded. You can have a removable rib on the inside ring. A different cage used for Taper and cylindrical roller bearings can be a construction of shafts that go true the center of the roller and are welded to a top and lower ring building the cage. I seen no mention of Cross Roller Bearings. There are a lot of other subtypes for each but that would be the main bearings in the roller Bearings sector that you did not mention.

@JohnTheSten 2 жыл бұрын

Could you describe difference between bearings a bushings, please? I personaly would call some types in video as bushings but i guess i am wrong.

@Alexandru_Iacobescu 2 жыл бұрын

@@JohnTheSten I’m not a bushings expert. I know more about roller bearings specifically. From what I know a bushing main purpose is to reduce NVH by replacing a fix connection with one that is permeating a limited movement while the main purpose of the bearing is to transmit load. There are some situations where bushings are used with the main purpose is load transmission, instead of a bearing (also named Plain Bearing) but in that case you will have more friction on a bushing compared to a bearing, harder to deal with misalignments, lower precision and lose of load transfer do to friction. A bushing is a bearing, but a bearing is not always a bushing. There is also a different when it comes to different forces that apply on the system. Bearings can be design to withstand forces from all directions.

@JeffreyAllanBackowski 2 жыл бұрын

I manage a Bearing plant, I think you are lying about working in a Bearing plant, if I find out you work in my plant, I will fire you.

@manoyski3555 2 жыл бұрын

@@JeffreyAllanBackowski if you fire him can apply for the vacancy?

@Alexandru_Iacobescu 2 жыл бұрын

@@JeffreyAllanBackowski what is your plant name?

@knightfall7534 2 жыл бұрын

The problem with ball bearings I learned in my engineering course is that they aren’t good at handling constant non motion radial load as only one point of the bearing is in contact with the outer and inner ring it can dent or scar them making them not ideal for applications where something isn’t moving often or is really heavy, for that you want to use needle or cylidrical/ conical bearings as the contact with the surface is larger, however they can be less efficient because of this. Also when installing you need to look at what part is rotating and install the bearing with tolerances accordingly because you don’t want the rings to slip on the part that isn’t moving, or crush the bearing which will cause premature failure. There’s a ton of pretty complicated calculations to figure out the loads and lifespan of them alongside what bearings should be used in what applications.

@sayingnigromakesyoutubecry2647 Жыл бұрын

I wanna know how to set the tolerances of the housing and the axis...

@kmemz 2 жыл бұрын

You missed an extremely common bearing type, the Journal bearing. Journal bearings rely on a pressurized film of oil to provide their rolling action, rather than balls or cylindrical rollers. Because this oil is a film, rather than a set of contact points, it has a much higher contact than balls or rollers, and allows for a far greater capability to handle various types of forces. Unfortunately, these bearings need a constant oil supply to actually function, usually provided by being pumped through a port on the inner race. To minimize damage when oil is not supplied, the outer race of the bearing is usually a shim made of a softer material than either what the shim clips into, or the inner race. When oil runs dry, the friction increases drastically, and the shim gets ripped out of its socket and forced to spin and scratch up, resulting in what mechanics usually call a "spun" bearing. Journal bearings are very nearly the only bearing type used inside the main chambers of an engine block; for bolting the crankshaft down, for bolting tie rods to the crankshaft, and to hold the tie rods to the pistons themselves, in the event that it makes enough back and forth friction to need a bearing.

@sayingnigromakesyoutubecry2647 Жыл бұрын

True. And also, in 2 strokes bikes, they use normal bearings. I think Needle ones. Strange!

@sayingnigromakesyoutubecry2647 Жыл бұрын

The answer is that in two strokes you don't have enough oil...

@Mazdafan59 8 ай бұрын

He did cover these bearings

@melg4032 2 жыл бұрын

This was a very good video but it needed an explanation about radial and axial loads. The visuals were great, well done.

@robertfindley921 2 жыл бұрын

My father worked 40 years for Bower, which was bought by Federal Mogul, then NTN. Thanks for the memories!

@davebaker9128 2 жыл бұрын

Besides the sprague clutch (one way roller bearings) the spherical roller also flexes to increase the contact area in proportion to load

@zhengao1027 Жыл бұрын

I am engaged in the manufacturing and sales of bearings. Thank you very much for watching the relevant video from you, which is very important for me to enrich my knowledge.

@RoboticParanoia 2 жыл бұрын

Great video! I missed a mention on ceramic bearings, although they would fit better in a video about materials and use cases, something I also would definitely watch. You've got a new subscriber here!

@WernerBeroux 2 жыл бұрын

Overall good visuals, however I'd have welcome a deeper discussion on pro and con for each. Yes ratial and axial load where discussed yet not emphasised or explained enough. Plus it's missing the linear rails bearings, and discussing usage of multiple roller bearings to have axial and radial load support.

@raghukol2086 2 жыл бұрын

Good video sir, may be u missed sliding bearing used in the over head roads, bridges, flyovers, metro, railway lanes . structural bearings used in massive structures in plants, big factories..

@TheEngineersPost 2 жыл бұрын

Yes, you are right

@rogerdavenport9618 2 жыл бұрын

Worked and machined Dodge ball bearings for 44 years, there are so many types and applications that it would be almost impossible to list them in a limited post from air handlers (air conditioners) to those that are water-cooler for the rolling of plate glass(extremely high temp) during world war two allied bombers bombed the bearing factories as much as possible, the world cannot operate without some type of bearing moving the load

@jonathanrodriguez7763 2 жыл бұрын

I’m a “greenie” at work and I’ve been studying the fundamentals of bearings, motors and gearboxes, etc… would you happen to know any good books on bearings?

@rogerdavenport9618 2 жыл бұрын

@@jonathanrodriguez7763 I had several tooling and machining books, but since I've been retired for six years most of my books have long since trashed, I suggest you pull up Dodge mounted Ball and Roller Bearings or Reliance Dodge, you may be able to find infro there, they were an old company out of Miswaka, Indiana when I went to work for them in 1972, good luck on finding the information, just keep searching.

@nokia5359 2 жыл бұрын

interesting! pls expand to include appropriate construction materials for the intended application. like wear and tear, heat, moisture and stress.

@davidbesant 2 жыл бұрын

There was a little confusion in your narrative with respect to "rolling" and "sliding" friction. Otherwise, that was a brilliant presentation. Thank you for your continued high standard.

@tinuvarun5806 5 ай бұрын

He said that the magnitude of rolling friction is always less than the magnitude of sliding friction. Which one is easier to push, a ball or a box? Of course the ball. Because when you push it, it rolls, whereas the box slides. More friction is generated when pushing the box making it harder to push.

@jamescole1786 2 жыл бұрын

1/3/22; wonderful animation & graphics, clear explanation of purpose, limitations & life span. Well done!👍👍👍🛠😊

@lourdesamykupusamy4314 Жыл бұрын

Your info on bearings has helped me in my workplace. Thank you very much

@keithleeuwen877 Ай бұрын

Awesome !

@samratkadiyam4071 2 жыл бұрын

I am impressed. Voice, language & pronunciation, graphics/illustrations are good & easily understandable.

@robertnicholson7733 2 жыл бұрын

As others have mentioned, hydrodynamic and aerodynamic bearings are not really addressed. There is also some confusion in the video about plain bearings and fluid bearings, I am pretty sure that one illustration used in fluid bearings was actually an engine main bearing, that is a plain bearing and also a hydrodynamic bearing. All plain bearings used in main, big end and little ends of modern car engines (and that is most automotive engines) are hydrodynamic bearings, making it arguably the most common type of bearing. Indeed, most plain bearings are hydrodynamic bearings, they are very reliable and once moving there is no surface-to-surface contact, the load being fully supported on a thin film of oil. Peak oil film pressures in modern cars are around 50,000 psi in big ends and 40,000 psi in mains (if memory serves), the oil pump does not provide this pressure, its only job is to ensure sufficient oil reaches all the bearings (and also cooling of components such as pistons), the hydrodynamic thrust is generated by the bearing itself through geometry, physics and behaviour of fluids. Notable other hydrodynamic bearings are the Michel thrust bearings (similar to the Kingsbury thrust bearing) used in ships to transmit all the thrust from the propeller to the hull. Previous to the Michel bearing, ships thrust bearings were much, much larger, unreliable and prone to overheat, the Michel bearing revolutionized the design of ships propeller shafts.

@budituxtux550 2 жыл бұрын

What about linear motion bearings? Aren't these things often used in 3D Printers or CNC nowadays? Can you discuss that too?

@WhatisAPaladin 2 жыл бұрын

and skateboard bearings while your at it.

@Navitus 2 жыл бұрын

@@WhatisAPaladin Skateboard bearings are rolling element bearings aren't they?

@quelixfenzer5108 2 жыл бұрын

@@Navitus So are linear bearings in most applications. the balls just follow channels that lead them in a straight line across the inner surface (often a rod) and then back to the start in an outside channel. Skateboard bearings are usually deep groove ball bearings

@Navitus 2 жыл бұрын

@@quelixfenzer5108 Interesting, can you show me some examples of a linear bearing used to roll a skateboard wheel?

@quelixfenzer5108 2 жыл бұрын

@@Navitus no i mean rolling element bearing as in theres something inside the bearing that rolls, in this case the balls

@musicauthority703 2 жыл бұрын

Tapered roller have been widely used in automobile's for many years. and are usually used on the front of the vehicle. and are placed in a hub and onto a spindle. and have the ability to be repacked with grease. or in the case of large truck's where gear lube is used. and regular bearings are also termed as bushings. and thrust bearings are also termed as Torrington bearings. and a couple of other types of bearings that were very lightly touched on in this video. were babbitt and clevite style bearings that are used in automobile engines.

@DamagedF0X 2 жыл бұрын

6:08 Needle roller bearings are also used for axial bearings. Often used in transmissions.

@TwumEmmanuel-nh3bb 9 ай бұрын

Please where are you located

@sphillips6357 2 жыл бұрын

I knew someone who used to buy surplus military parts. I asked him once about some bearings he had. They were boxed, sealed and unused. He told me they were used in some type of missile, I believe the minute man or scud missile. He told me they had to be replaced every year because they were extremely high precision bearings and to insure the missile's accuracy they were replaced every year even if sealed and unused as surplus parts because the grease might start to get a bit stiff throwing off the missile's accuracy.

@winton666 2 жыл бұрын

I wish I would have known about this during my youth. It would have made my skateboard hobby much more fun.

@youdhagarnacharry4026 2 жыл бұрын

It's very nice with great useful knowledge,May I transfer these excellent matter to my vocational degree students soon ?

@STUDYWITHGBT 2 жыл бұрын

Thank you, sir Very useful topics and excellent explanation . I'm from India

@TheEngineersPost 2 жыл бұрын

Thanks and welcome

@carevic3234 2 жыл бұрын

High temperature bearings are especially useful for applications in conditions subject to high temperatures such as trucks used in kilns for brick making, in furnaces for the ceramic industry, in rollers in working conditions at elevated temperatures in the steel manufacturing industry , aluminum manufacturing, glass manufacturing, Steel industry, Etc

@chippilastelko 2 жыл бұрын

good , very high quality animation. i only have trouble understanding, what good is having cartridge for bearings? I'm studying design of turbochargers and I can't grasp the contribution of the cartridge to the work.

@pruthvikumar5256 Жыл бұрын

Really amazing information 👍 Sir could you please please explain the bearing selection for any application for a machine design project.

@vinhluu7985 7 ай бұрын

Thank you for helping me know more about mechanical

@lil----lil 2 жыл бұрын

I LOVE YOU CHANNEL TO DEATH. Gonna watch & Thumb UP EVERY singe one of them. Thank you for the uploads!

@TheEngineersPost 2 жыл бұрын

You're most welcome

@ronaldlee3537 15 күн бұрын

I was an automotive mechanic many years ago, and I see the name Timken frequently.

@rohithkumar1688 2 жыл бұрын

The video is very useful and informative, if you could add real world applications to each types it would be great.

@TheEngineersPost 2 жыл бұрын

Noted

@absolute___zero Жыл бұрын

yeah, but it sucks to listen to synthesized voice from a text to speech program.

@LittleGreyWolfForge 5 ай бұрын

@@absolute___zerotrue

@georgecharney994 2 жыл бұрын

Good video. Oddly, no mention of Babbitt bearings which are still used in some industrial machines.

@naturesstressrelievers9824 2 жыл бұрын

Very useful information, exploring more on this channel.

@mehanikal5639 2 жыл бұрын

This is good video on basics of bearings.

@mechguy8459 2 жыл бұрын

Hey all your videos are very nice and i am learning more day by day because you are making such informative videos. Thanks keep it up ♥️🙏

@TheEngineersPost 2 жыл бұрын

Thanks a ton

@chamkintcai9152 2 жыл бұрын

we can offer various bearing to you

@arijitchakraborty2944 2 жыл бұрын

My company manufacturers taper roller bearing...thank u for the knowledge ❤️

@erikwahlstrom7826 2 жыл бұрын

It would be helpful if the rpm limits were included for each design type.

@PREDATEURLT 2 жыл бұрын

It depends on a lot of factors (quality of metals, oils, temperature, life expectancy, short term or long term max rpm, load on the bearing and etc.) so no easy answer.

@asemahmed2618 Жыл бұрын

Massive work with excellent knowledge proud of you continue these videos

@luoyangbobiprecisionbearin986 Ай бұрын

It is great!, and we would prefer to add the thin section ball bearings.

@aldenconsolver3428 11 ай бұрын

Excellent. I would appreciate you following up flexure bearings if you expand this video.

@yotafan174 2 жыл бұрын

I repair oil and natural gas drilling and production equipment. Some of the bearings that I replace are very expensive upwards of $5,000 for just one bearing. The usual reason why the bearings need replacement is due to not lubricating them often enough.

@DongGeorgehao Жыл бұрын

Hello, Mike, Nice to meet you. I think I can provide you with bearings, The price and quality are more reasonable, what do you think it?

@bestamerica 2 жыл бұрын

' wow very good bearrings... i did put dry plastic balls with straws in the circle bearring... no grease / no oil at all... still good slow smooth running well

@dromasmugalu2183 Жыл бұрын

I m very happy to watch the bearings video.

@Viraix 2 күн бұрын

Thank you!

@redamohammed8720 2 жыл бұрын

This video is very useful and good information . keep up the great work 👍

@madeddiesman-stylemonsterm6662 2 жыл бұрын

This was very informative. Thank you.

@teddybdopinedaperez5535 7 ай бұрын

The best explainer❤😊

@kexcz8276 2 жыл бұрын

You could maybe mention that the sleeve bearings produce higher friction than the roller bearings, which is their biggest downside, and that it uses material with better sliding properties than the steel in the middle of it. SUch material can be teflon, special cloth, brass and so on... Otherwise, very good video

@zainman6722 2 жыл бұрын

Very helpfull presentation for students etc.

@bhuvanmehta2731 2 жыл бұрын

Sir make video on design of bearings with major equations

@mystified_dignity 2 жыл бұрын

Great video and very informative.

@TheEngineersPost 2 жыл бұрын

Glad you enjoyed it!

@alanfenick1103 2 жыл бұрын

Thank you! Very informative!

@sparking023 2 жыл бұрын

I have no idea why this popped up in my recs, nor why did I even click on it, but I am now a little more knowledgeable in bearings. Cool

@mitulkhan6943 2 жыл бұрын

Excellent, i gets knowledge about bearing from this video.

@patty109109 2 жыл бұрын

It’s midnight but I do need to learn this before bed.

@MikGruber 2 жыл бұрын

Air bearings used in aviation/aerospace applications could be a video all on its own.

@patriciogonzalez4882 2 жыл бұрын

What type of bearings should I use for machinery movers dollies or skates for about 50 ton equipment Any help would be.greatly appreciated thank you Happy new year 2022

@dragonrider2.064 2 жыл бұрын

Also wish there was a little more information on magnetic bearings

@discoverourworld1737 8 ай бұрын

how aobut journal bearin? can be put into your "plain bearing" category or something else?

@jimmyhuesandthehouserocker1069 2 жыл бұрын

I always wanted to be a mechanical engineer and work with bearings and such, but I never made it. I almost flunked out of high school and couldn't remotely comprehend mathmatics. That's all what engineering is. At least I got to work a little in a machine shop.

@rogerdavenport9618 2 жыл бұрын

The plant where I worked for 44 years in Rogersville Tn. is hiring. So have at it.

@parameswarat3031 2 жыл бұрын

Super explained & explanation 🙏🙏🙏.

@srisaivoleti 7 ай бұрын

I want to know about pivot and collar bearings too....

@727AC Жыл бұрын

Absolutely mind blowing animations!

@drmadhavpakhare2147 Жыл бұрын

Nice video!Please can you help me to use type bearing between two grinding stone plates in stone grinder?

@prashantpatro8285 Жыл бұрын

Explain about magnetic brakes used in induatry vs magnetic bearings

@localeightironworker 2 жыл бұрын

i just ran into a wooden bearing on an old slower-moving machine. just some hardwood jammed into a metal housing. really surprised me!

@siavashnymd 2 жыл бұрын

good job, very good elaboration and animation

@TheEngineersPost 2 жыл бұрын

Thanks for watching

@a1wafer 2 жыл бұрын

Please also tell us of high temperature graphite bearings. 🙏

@chauvinemmons Жыл бұрын

How about string bearings or DC clutch bearings or just plain K rated bearings those are high temp bearings As far as any bearing made out of graphite who cares they have no real value in our day to day lives bushings are bushings so what if they can take a thousand degrees who cares the friction is high I don't care if you make them out of graphite ceramics out class graphite anyway.

@adamsmithson486 8 ай бұрын

Pozdrawiam serdecznie i życzę miłego dnia

@gvhansen1 2 жыл бұрын

Constant Velocity Joint is a form a a bearing that allows a unit to flexible swivel motion of direction of rotation. Like in a CV axial in a car front wheel drive.

@andoletube 2 жыл бұрын

I'm assuming CVs will be part of another video showing different types of joints/articulations. But yes, there is some overlap in terms of what is a joint and what is a bearing.

@nigelvanderpool963 2 жыл бұрын

Good night what type of bearings do you recomend for an indoor bike roller trainer

@Ivan-dj8yv 2 жыл бұрын

Thanks for your video! How about nylon bearings?

@TheEngineersPost 2 жыл бұрын

Great suggestion!

@yudabomb7078 2 жыл бұрын

Pretty good video. However your raceway description could use some work. Nonetheless, this is a video I would show to customers and new employees.

@muhammadashraf3225 2 жыл бұрын

thanks for useful information

@harshasamarasinghe7257 2 жыл бұрын

Great explain sir

@cscsamsung9749 Жыл бұрын

ขอขอบคุณปัญญาประดิษฐ์ของคนที่คิดค้นการสร้าง แบริ่ง มาใช้ในอุตสาหกรรมครับ..เราได้ประโยชน์มากมายจากการใช้ เช่นลดความเร็วที่สูง มาแปลงเป็นพลังงานในรถยนต์ทุกชนิดเลยครับ...

@nagy-MechTube 2 жыл бұрын

thanks so much

@TheEngineersPost 2 жыл бұрын

You're welcome!

@shyamverma2305 5 ай бұрын

Thanks sir, the vdo is crystal clear and informative

@nitinmisra6747 2 жыл бұрын

👍 Nicely explained.

@factrefute4427 2 жыл бұрын

HI I PREFER TO HAVE YOU SPECIFY THE DIFFERENT BEARINGS INDUSTRIAL USE AND SPEC INCLUDING AVIATION BEARINGS. FOR HELICOPTERS FOR EXAMPLE.

@sajadsarami2891 2 жыл бұрын

Thank You.

@carlcooper8564 2 жыл бұрын

I thought that the bearings that they displayed had more bearings than I knew of, I had 8 cars all second hand so most of the bearings that I know are automotive bearings, I learned of magnetic bearings which have no rolling friction more research on those I would like.

@bharathkumarreddy.m2668 2 жыл бұрын

Which software you use for animation editing tel me bro

@PaulDeCamp 2 жыл бұрын

What's a bearing used for reciprocal motion of one cylinder into another that also provides an elastic seal. It looks like a tube-sock. It's used for hydraulic actuators.

@khalidismail5998 Ай бұрын

Pl tell us where magnetic bearings are used ..thanks

@kuronekogamer2065 2 жыл бұрын

10:00 is my favourite type of bearing.

@jeffskent 2 жыл бұрын

What about the bearing on a crankshaft which uses babbit or some such material in a conventional car engine wherein the journals are submerged in engine oil?

@julioduarte7021 2 жыл бұрын

Hello Mister The Engineers Post. That de rodamientos sellados puede usarse en los ejes de las bicicletas ya los usan pero desconozco la forma de solicitarlos. Los mas estandar. Thank you E. Post.

@PJ6300gaming 2 жыл бұрын

what about ceramic and hybrid bearings? they are supposed to have decreased friction compared to all metal bearings.

@oscarmercadovillarreal5546 2 жыл бұрын

I would like to know more about ceramic bearings

@ShanthalalWeragoda Жыл бұрын

Please explain about the Turn Table Bearings

@shaurya31261 2 жыл бұрын

At 2:29 could you please explain that why the outer bearing remains stationary...

@TheEngineersPost 2 жыл бұрын

Rolling element bearings place rollers between two rings called “races” that allow motion with little rolling resistance and sliding. The large race that goes into a bore is called the outer race, and the small race that the shaft rides in is called the inner race. These rolling elements are placed between turning and stationary races to prevent sliding friction.

@shaurya31261 2 жыл бұрын

@@TheEngineersPost Thank you ❤️❤️ This video was very helpful 😄

@w3vjp568 Ай бұрын

Engineers - what kind of bearings would I need to support a rotating disc (work surface) designed to hold a heavy glass 18" porthole for polishing? It would need to be driven at up to 60 RPM and be driven by a pulley or sprocket system, and hold up to 100 pounds. It'll probably use 7/8" or 1" shaft, depending on what I can scrounge, and be driven by a 1/2HP drill press motor.