SKF bearings will inevitably be damaged during operation. If abnormal heating, vibration and noise suddenly increase, it indicates that SKF bearings may have been damaged, and the reasons should be checked and analyzed in time. Common forms of destruction are:
When the external hard particles enter the SKF bearing and press between the body and the raceway, the surface can form indentations. In addition, excessive impact load can also cause local plastic deformation of the contact surface to form pits. When the SKF bearing is stationary, even if the load is small, evenly distributed pits will be formed on the raceway due to the vibration of the surrounding environment.
When the SKF bearing seal is not good enough to allow dust or particulate matter to enter the SKF bearing, or poor lubrication, it will cause serious scratches or wear on the contact surface, and increase the vibration and noise of the SKF bearing.SKF Bearing 21313 E online, click here to contact us buy it.
Moisture, acids, alkalis, salt substances, etc. invade SKF bearings or improper selection of lubricants will cause corrosion of SKF bearings. Even slight corrosion of precision SKF bearings will cause SKF bearings to be scrapped.
4. Cracks and fractures
Material defects and improper heat treatment, too large matching interference, improper combination design, such as grooves on the bearing surface causing stress concentration, etc., will form ferrule cracks and fractures.
5. Electric current corrosion
Electric current passing through the SKF bearing will generate a small electric spark, causing the contact surface to be locally annealed and small pits or black bright spots appear. In serious cases, larger pits will appear.
6. The cage is damaged
SKF bearings, especially high-speed SKF bearings, due to the lack of lubricant, cause wear, collision, and even fracture of the cage at the contact point of the cage and the body or the ring.
7. Fatigue peeling
On the raceway or body surface of SKF bearing, due to the effect of bearing the alternating load, the surface metal of the contact surface peels off and gradually expands to form pits. If it continues to run, it will form a peeling area. Due to improper installation or the inclination of the center line of the SKF bearing seat hole and the shaft, etc., the partial area of the SKF bearing will bear a large load and early fatigue failure will occur.
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So how can the service life of SKF imported bearings be extended?
1. Installation of SKF imported bearings
Whether the installation of SKF imported bearings is correct affects accuracy, life and performance. Therefore, the design and assembly department must fully study the bearing installation. Hope to install in accordance with operating standards. The standard operation items are usually as follows:
(1) Clean SKF imported bearings and related parts of SKF imported bearings;
(2) Check the size and finishing of related parts;
(4) Inspection after installation of SKF imported bearings;
(5) Supply lubricant.
2. Alignment, alignment
After the SKF imported bearing is installed, if the alignment is not carried out carefully, the alignment may cause the bearing to suffer additional load, friction and vibration. These may accelerate fatigue and reduce the service life of SKF imported bearings, and may damage the service life of other machine parts. In addition, increased vibration and friction may greatly increase energy consumption and risk of premature failure.
3. Basic condition monitoring
During use, the basic external conditions of SKF imported bearing operation should be monitored frequently, such as temperature, vibration and noise measurement. These regular inspections will detect potential problems early and prevent unexpected machine suspensions, so that production plans can be realized, and factory productivity and efficiency will be improved.
4. Lubricate again
In the process of operation, SKF imported bearings require correct relubrication to perfect its performance. SKF imported bearing lubrication methods are divided into grease lubrication and oil lubrication. In order to make the SKF imported bearings perform well, first of all, we must choose a lubrication method suitable for the use conditions and purpose. If only lubrication is considered, the lubricity of oil lubrication is dominant. But grease lubrication has the advantage of simplifying the structure around the bearing.
When the bearing reaches its end of life, it should be replaced. Although SKF imported bearings can no longer be used, the correct removal of the original SKF imported bearings and timely replacement of new SKF imported bearings can greatly promote the extension of the service life of the new SKF imported bearings. Appropriate methods and skills for removing bearings and the use of tools will help maintain and repair SKF imported bearings for other machines.