How to use bearings and bearings properly not everyone knows. There have been many cases of self-destroying the life of the bearings when not investigated.
Using bearings incorrectly inadvertently reduces the performance of bearings. This makes the bearing quickly reach the operating limit, so it will directly affect the operation of the machinery and production line, if heavier it will be the main cause of risk your system Here are 9 important notes to help you use bearings and bearings effectively.
Diagram of the structure of bearings - bearings
1. Select suitable lubricants for bearings.
Lubricants have a lubricating role, reducing friction wear, and they also have efficient heat transfer and transmission functions. Therefore, depending on the type of bearings, the manufacturer recommends which type to use. There are many people who use lubricants for bearings without knowing what kind they are? This is a mistake right from the beginning. Because each type of lubricant has viscosity and operates in different conditions. Therefore, to use the right type, consult the manufacturer's recommendations.
Some types of bearings, bearing manufacturers have oiled, or lubricated grease and. We buy and install and use it without further investigation. There are some people who often open the bearings and look more. This is not recommended because additional investigation if not the same type is already extremely dangerous. When operating, they can react because they do not work in the same mode, which will create a cohesive residue that directly affects the bearing. If this type of grease is of the same type as the available one, it is also not good to reduce the viscosity, reduce the heat transfer, thus, more or less affect the operation of the bearing.
Need to replace grease in bearings? How long it takes to replace once. Manufacturers who calculated the amount of grease available in the bearings will operate at the end of its life cycle without having to replace it. If you install and use the correct bearing as recommended by the manufacturer, there is no need to replace grease.
2. How to fit bearings correctly?
Installing the correct bearings plays an important role for the stability of operation and the life of the bearings. Each type of bearing has different functions and dimensions, which are specified in the Catalog, and usually the assemblers install it very gently, never use a lot of force or try to insert the bearing. Properly fitting bearings is to choose people with mechanical experience, know your system, understand each type of bearings. Therefore, if you are inexperienced in the machinery system or are not knowledgeable about the type of bearings, you should not install it but need to consult experts or manufacturer's recommendations.
Technical workers are removing FAG taper bearings
3. How to choose bearings?
There are many types of bearings that are manufactured to accommodate the different parts of each machine. We cannot replace bearings in large load cranes fitted to motor systems. Each type of bearing is generally defined by the manufacturers of specifications such as: size, speed, load-bearing level ... A person who understands the parameters of the bearing to compare with the operating system It is a smart job to choose the most suitable bearings for your machinery. But if you are not familiar with either of the above, please consult the expert's opinion, or the manufacturer's recommendations. In addition, you should choose genuine bearings and original bearings to make your apparatus more stable.
4. Working life of bearings?
The main use of bearings is to reduce contact friction. More precisely, replace rolling friction action with sliding friction. The working life of the same bearing but used for different applications will not be the same. Technically, the life of the bearing is determined by the number of revolutions and changes (influenced) depending on: load (heavy or light, regular or irregular), working temperature (high or low) , working environment (dust, moisture, chemicals, ...).
5. How to know when bearings are about to fail?
The phenomenon of defective bearings is the phenomenon of bearings operating to the limit of revolutions. Or operating too hard, or being hit by external forces ... Broken bearings often have the following signs:
- The temperature of bearing bracket is abnormally high
- There is unusual noise and hiss.
- There is an abnormal vibration and shaking
- Or have deformed bearings
The regular monitoring of the operation, parameters, signs described above, the user can self-assess and accurately predict the operating status of the bearings. From that point out, solutions to overcome when having problems.
6. How to identify the operating status of bearings while in use?
The operating status of the bearings will be reflected through the parameters of temperature, noise, vibration ... Currently, the method is evaluated as the most effective way to monitor the status of operation and predict soon. The damage of bearings is the method of measuring and analyzing the vibration of bearings.
7. How to measure the wear of bearings?
Each type of bearing is manufactured with a certain error. We understand that this error is the contact between the ball and the ring, so it is called the error. Each type of bearing has a different degree. Measuring and checking this (clearance) gap requires specialized equipment with high accuracy. Checking the wear of bearings cannot remove and measure each component and compare with the manufacturer's parameters. Normally after a process of operation, the wear of bearings will be uneven on the entire rolling groove surface. Micro-peels on the surface of rolling tracks will be the main cause of rapid deterioration of bearings if lubrication is not well guaranteed. The assessment of bearings through "low" feeling in one way or another does not allow users to accurately assess the state of bearings.
Currently, the monitoring of the operating status of bearings by vibration measurement and analysis method to detect and monitor the damaged frequencies of bearings (Bearing Defect Frequency - BDF) is being popularly applied to specialized vibration measuring and analysis tools.
8. When replacing the tapered ball bearings fitted on the breaker, is it faster to damage? Remedial measures?
When replacing tapered ball bearings (self-supporting bearings, drum bearings) are often fast and damaged, this happens largely because when tightening the screw tightening makes the bearings no longer necessary internal slits . The best remedy is according to the manufacturer's recommendation, tightening the screw to the limit allowed, installing the right technique. If you are not familiar with this issue please contact the supplier or manufacturer with more accurate information.
9. What to do when the inner ring or outer ring is rotated on the shaft or drive body?
The cause of this phenomenon is due to:
- Bearings are stuck (not running) due to loss of internal clearance or due to improper lubrication.
- Improper mounting tolerances.
As a result, the bearing slowly rotates in the drive or on the shaft when working and grows gradually. ball as well as shaft (or drive)
The best method is to replace the shaft or drive. In case it is not possible to replace it, it is possible to use the method of welding and machining again to make the fitting tolerances. However, care must be taken during machining to avoid axial deviation.
SPECIAL ADVICE
-How to protect bearings - bearings?
Compliance with the manufacturer's rules about the type of bearing you are owning is most noticeable. Like installing, choosing the right bearings, the operation of bearings without load bearing capacity and number of revolutions, choosing grease suitable for each type of bearings, good operating environment, proper hygiene and maintenance techniques ... The principles seem to be quite simple but not everyone does it right.
- How to maintain bearing life - bearings?
The lifespan of each bearing is different whether it is the same type, but due to use, application, environment using bearings - different bearings on the life of silver bearings - bullets are also different . So how to maintain bearing life?
To maintain the bearing life the best way is to perform good protection of the bearings, by following the periodic monitoring of parameters, identifiers, and from which it can be predicted. operating characteristics of bearings.
