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What are bearings?

wallpapers Tech 2020-10-28
"Bearing" is a kind of mechanical parts, but do you know their function? In fact, they are very important to the machinery industry, so they are called the "bread and butter" of industry. They can be used in various machines, but because they are carried out in the dark, most people who have nothing to do with the machine industry might hear this word and think "what is that?"
 
Therefore, for this first "bearing row", we will explain the absolute basis of bearings and briefly introduce their functions.
 
1. So what is a bearing?
Bearings are "parts that assist the rotation of objects". They support the rotating shaft inside the machine.
 
Machines that use bearings include automobiles, airplanes, and generators. They are even used in household appliances that we use every day, such as refrigerators, vacuum cleaners and air conditioners.
 
Bearings support the rotating shafts of wheels, gears, turbines, rotors, etc. in those machines, so that they can rotate more smoothly.
 
In this way, various types of machines require a large number of shafts to rotate, which means bearings are almost always used, so that they are called "the bread and butter of the machine industry". At first glance, bearings look like simple mechanical parts, but without bearings, we cannot survive.
 
2. The role of bearings: So why are they so important?
So, what role does the bearing play in making the machine run smoothly?
 
They perform the following two main functions.
 
Function 1: Reduce friction and make rotation more stable
There will inevitably be friction between the rotating shaft and the parts supporting the rotation. Use bearings between these two components.
 
The bearing reduces friction and allows smooth rotation. This reduces energy consumption. This is the most important function of the bearing.
 
Function 2: Protect the rotating parts and keep the correct position of the rotating shaft
A large amount of force is required between the rotating shaft and the part supporting the rotation. The function of the bearing is to prevent the force from causing damage to the rotating parts and to maintain the correct position of the rotating shaft.
 
This function of the bearing allows us to reuse the machine for a long time.
 
3. What is the application range of the bearing? What should we do without them?
Let us ask ourselves how much our daily lives depend on bearings. Usually you don’t see them, so it’s hard to imagine, right? Let's talk about cars, because we all know these.
 
When you were a kid, you probably played an electric toy racing car at least once, right? You may remember to install the bearings of the wheels.
 
But what about real cars? How many bearings does a car need?
 
Figure: Main places where bearings are used in automobiles
 
① Power generating equipment (parts)
Examples: alternator, turbocharger, etc.
 
②Steering equipment (parts)
Examples: steering gears, pumps, etc.
 
③ Equipment (parts) that transmits power
Examples: gearbox, differential, etc.
 
④ Equipment (parts) for driving a car
Examples: wheels, suspensions, etc.
 
 
...The correct answer is about 100!
For high-end cars, the number of bearings is more like 150! Usually, you can see ball bearings and roller bearings in cars.
 
All these bearings play a very important role.
 
If the car does not have bearings,
 
Spinning becomes difficult and consumes a lot of energy, and
The part supporting the rotation will be damaged almost immediately.
Therefore, without bearings, we will not be able to drive the car safely and comfortably.
 
In this way, bearings continue to work in the shadows, making our lives more comfortable.
 
Conclusion: Bearings are mechanical parts that make the world go round
Bearings play a vital role in our daily lives, but because of their importance, we must constantly strive to make them more accurate and durable.
 
In addition, it is vital to the development of machine technology that we will continue to develop bearings that can work under more and more demanding and professional conditions.
 
Bearings will undoubtedly continue to develop and change, and improve our livelihoods by "making the world go".

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