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 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.
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.
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.
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.
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.
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..
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.
@@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
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.
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
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?
@@Jonasty00 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.
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.
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.
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!
' 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
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.
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
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.
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.
great animations and examples....seems weird you were willing to put all that work into the graphics, but decided to use a robot for the voice-over. Good information though.
![Applications of Bearings 1 [Common Types]](http://i.ytimg.com/vi/lFA6YXNKGII/mqdefault.jpg)
Not a big fan of the robot voice, but the video was very informative nonetheless. Keep up the great work.
Agreed
Robot voice plus misspelling Thrust as "Thurst" is even better. 🙂
Off course
It's better than a British accent
@@lukelanckriet Which British accent? Every city in England has its own accent.
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.
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.
@@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.
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.
@@JeffreyAllanBackowski if you fire him can apply for the vacancy?
@@JeffreyAllanBackowski what is your plant name?
This was a very good video but it needed an explanation about radial and axial loads. The visuals were great, well done.
Your info on bearings has helped me in my workplace. Thank you very much
Awesome !
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.
True. And also, in 2 strokes bikes, they use normal bearings. I think Needle ones. Strange!
The answer is that in two strokes you don't have enough oil...
He did cover these bearings
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.
I have college and university science and technology degrees, I learned many new bering types from your video . Thanks
I LOVE YOU CHANNEL TO DEATH. Gonna watch & Thumb UP EVERY singe one of them. Thank you for the uploads!
You're most welcome
I m very happy to watch the bearings video.
My father worked 40 years for Bower, which was bought by Federal Mogul, then NTN. Thanks for the memories!
I am impressed. Voice, language & pronunciation, graphics/illustrations are good & easily understandable.
Thanks sir, the vdo is crystal clear and informative
I can't take the computer voice.
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 ♥️🙏
Thanks a ton
we can offer various bearing to you
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
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.
1/3/22; wonderful animation & graphics, clear explanation of purpose, limitations & life span. Well done!👍👍👍🛠😊
Thank you for helping me know more about mechanical
Massive work with excellent knowledge proud of you continue these videos
Absolutely mind blowing animations!
Super explained & explanation 🙏🙏🙏.
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.
Thank you, sir
Very useful topics and excellent explanation .
I'm from India
Thanks and welcome
The best explainer❤😊
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..
Yes, you are right
Very informative. Liked it and also subscribed to your channel.
It’s midnight but I do need to learn this before bed.
This helped so much thanks
Great video sir! Thank you!
Excellent, i gets knowledge about bearing from this video.
Very useful information, exploring more on this channel.
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.
I wanna know how to set the tolerances of the housing and the axis...
What about linear motion bearings?
Aren't these things often used in 3D Printers or CNC nowadays?
Can you discuss that too?
and skateboard bearings while your at it.
@@WhatisAPaladin Skateboard bearings are rolling element bearings aren't they?
@@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
@@quelixfenzer5108 Interesting, can you show me some examples of a linear bearing used to roll a skateboard wheel?
@@Navitus no i mean rolling element bearing as in theres something inside the bearing that rolls, in this case the balls
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.
Very helpfull presentation for students etc.
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
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?
@@Jonasty00 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.
Excellent graphics.
Great explain sir
good job, very good elaboration and animation
Thanks for watching
I wish I would have known about this during my youth. It would have made my skateboard hobby much more fun.
This is good video on basics of bearings.
Well done...
Top video !
Thank you! Very informative!
My company manufacturers taper roller bearing...thank u for the knowledge ❤️
Thanks for your educating video. 👍👌💐
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.
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.
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!
Great video.
Besides the sprague clutch (one way roller bearings) the spherical roller also flexes to increase the contact area in proportion to load
This video is very useful and good information . keep up the great work 👍
It is great!, and we would prefer to add the thin section ball bearings.
Excellent. I would appreciate you following up flexure bearings if you expand this video.
EXCELLENT...INFORMATIVE--VIDEO
'
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
The video is very useful and informative, if you could add real world applications to each types it would be great.
Noted
yeah, but it sucks to listen to synthesized voice from a text to speech program.
@@absolute___zerotrue
My favourite topic 🎉
thanks for useful information
6:08 Needle roller bearings are also used for axial bearings. Often used in transmissions.
Please where are you located
Informative video.
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.
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?
👍 Nicely explained.
We are a cage factory, we can manufacture all kinds of bearing cages。Thank you for sharing
very useful thank you
You are welcome
What does axial load in both directions mean
Very nice👍
thanks so much
You're welcome!
Very useful
Glad you think so!
The neat thing about flexure bearings is that if the flexing is small enough they can last FOREVER.
ขอขอบคุณปัญญาประดิษฐ์ของคนที่คิดค้นการสร้าง แบริ่ง มาใช้ในอุตสาหกรรมครับ..เราได้ประโยชน์มากมายจากการใช้ เช่นลดความเร็วที่สูง มาแปลงเป็นพลังงานในรถยนต์ทุกชนิดเลยครับ...
So Motor Starter is a bearing 👊🏿. I learned something today
I was an automotive mechanic many years ago, and I see the name Timken frequently.
Bearings paid for my entire existence through college. It's all ball bearings nowadays!
Very useful 👌👌
It's very nice with great useful knowledge,May I transfer these excellent matter to my vocational degree students soon ?
Good i have learnd.
interesting! pls expand to include appropriate construction materials for the intended application. like wear and tear, heat, moisture and stress.
good video.
Love the informations. Not the robot voice :)
Thank you!
More information on one way clutch bearing.
Really amazing information 👍
Sir could you please please explain the bearing selection for any application for a machine design project.
Thank You.
how aobut journal bearin? can be put into your "plain bearing" category or something else?
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
Excellent. TY
best video🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰🥰
Thanks 😊
Good video. Oddly, no mention of Babbitt bearings which are still used in some industrial machines.
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.
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.
The plant where I worked for 44 years in Rogersville Tn. is hiring. So have at it.
Thank you
PRODIGY The Engineers Post
Thank you
From Nick Ayivor from London England UK 🇬🇧
Thank you sar 🎉
It would be helpful if the rpm limits were included for each design type.
Is there a product like a holding bearing to keep the return direction when stopping rotation?
great animations and examples....seems weird you were willing to put all that work into the graphics, but decided to use a robot for the voice-over. Good information though.
HI I PREFER TO HAVE YOU SPECIFY THE DIFFERENT BEARINGS INDUSTRIAL USE AND SPEC INCLUDING AVIATION BEARINGS. FOR HELICOPTERS FOR EXAMPLE.
Hello there, only Linear Bearing is the one that's missing, what does it do?
Good night what type of bearings do you recomend for an indoor bike roller trainer
Air bearings used in aviation/aerospace applications could be a video all on its own.