Maintenance method to avoid shortening service life of IKO tapered roller bearings

IKO bearings usually have limited installation space. In most cases, bearings are based on mechanical design or other design limitations. Type and size of bearing, thrust angular contact ball bearing. What types of bearing seals are there? . Therefore, the decision to select the bearing diameter of the New Territories North Region is based on. Therefore, the main dimension tables of standard tapered roller bearings are sized according to international standards.
There are many factors that affect the service life of IKO bearings, which can be further explained by the use factors and internal factors.
The use factors mainly refer to whether the installation adjustment, use and maintenance, maintenance and repair, etc. meet the technical requirements. According to the technical requirements of IKO bearing installation, use, maintenance and maintenance, monitor and check the load, speed, working temperature, vibration, noise and lubrication conditions of the tapered roller bearing in operation, find the abnormality and find the cause immediately. Adjust to bring it back to normal. The installation condition is one of the primary factors in the use factor. The bearing is often changed due to improper installation, and the force state between the parts of the whole bearing changes, the bearing runs in an abnormal state and ends the service life early.
     In order for IKO bearings to be fully utilized and to maintain their proper performance for a long time, regular maintenance (regular inspection) must be performed. Through proper periodic inspections, early detection of failures and prevention of accidents are important to improve productivity and economy.
1, cleaning
     When the IKO bearing is removed for inspection, the appearance record is first recorded by photography. Also, verify the amount of lubricant remaining and sample the lubricant before cleaning the tapered roller bearing.
     a. The cleaning of the bearing is carried out by rough washing and fine washing, and a metal mesh frame can be placed on the bottom of the used container.
     b. When rough washing, remove the grease or adhesive with a brush or the like in the oil. At this time, if the IKO bearing is rotated in the oil, be careful that the rolling surface will be damaged by foreign matter or the like.
     c. When fine washing, slowly rotate the IKO bearing in the oil, which must be carried out carefully.
     The cleaning agent generally used is a neutral non-aqueous diesel oil or kerosene, and a warm alkali liquid or the like is sometimes used as needed. Regardless of which cleaning agent is used, it is often filtered and kept clean. Immediately after cleaning, apply anti-rust oil or anti-rust grease to the tapered roller bearing.
2, inspection and judgment
     In order to judge whether the removed IKO bearing can be reused, it is important to check its dimensional accuracy, rotation accuracy, internal clearance, mating surface, raceway surface, cage and seal. Regarding the inspection result, it can be judged by a person who uses a conventional bearing or a tapered roller bearing. The criteria for judgment vary depending on mechanical properties and importance, inspection period, and the like. IKO bearings must not be reused if they are damaged and must be replaced.
     a, the fracture and defects of the bearing components.
     b. Peeling of the rolling surface of the raceway surface.
Bearings are generally manufactured through multiple processes such as forging, heat treatment, turning, grinding and assembly. The rationality, advancement and stability of each processing technology will also affect the life of the bearing. The heat treatment and grinding processes that affect the quality of the finished tapered roller bearing often have a more direct relationship with the failure of the bearing. In recent years, research on the metamorphic layer of bearing working surface shows that the grinding process is closely related to the bearing surface quality.
The main task of IKO bearing life analysis is to find out the main factors causing bearing failure based on a large amount of background materials, analysis data and failure modes, so as to propose improvement measures in a targeted manner, extend the service life of tapered roller bearings and avoid The bearing has a sudden early failure.

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Regular maintenance of IKO outer spherical bearing equipment

When inspecting the IKO bearing equipment for regular inspection, operation, and removal of the outer spherical bearing when the peripheral parts are replaced, it is necessary to judge whether the bearing parts can be reused or not, and whether the use condition is good or bad. Also carefully investigate and record the removed bearings and appearance. In order to clarify and investigate the remaining amount of lubricant, the bearings should be cleaned well after sampling. If the bearing is found to be damaged or abnormal, please find out the cause according to the phenomenon of bearing damage and formulate countermeasures. In addition, the inspection results, if there are the following defects, the outer spherical bearing can no longer be used, need to replace the new bearing.
The actual life that can be achieved before the bearing is damaged is caused by the wear and damage of the IKO bearing, which is usually not caused by fatigue, but by wear bearings, erosion, seal damage and other reasons. However, whether in laboratory tests or in actual use, it can be clearly seen that under the same working conditions, the outer spherical bearing has the same appearance. In general, one-third of the bearing damage is caused by fatigue damage. Another third of the bearings are due to poor lubrication, and the other third is due to contaminants entering the bearing or improperly installed.
Improve the rotation accuracy of the bearing and reduce the vibration and noise of the IKO bearing. Tests have confirmed that the improvement of the rotation accuracy of the outer spherical bearing, the vibration and the noise reduction are all related to the significant reduction of the circular deviation of the ferrule. This creates good conditions for improving the bearing capacity of the complete bearing. In addition, bearing-to-rolling bearings can improve the bearing capacity of bearings if they are super-finished in addition to the crown. Super-precision greatly improves the working performance and service life of the bearing. Because of the many functions and effects, the super-fine finishing is more and more favored by the finishing of the bearing ring.
Cleaning of the bearing: When disassembling the outer spherical bearing for inspection, first record the appearance of the bearing, confirm the residual amount of the lubricant, and after sampling the lubricant for inspection, wash the IKO bearing. As a cleaning agent, gasoline and kerosene are commonly used. Bearing inspection and judgment: In order to judge whether the removed bearing can be used, it should be checked after the bearing is cleaned. Check the raceway surface, the rolling surface, the state of the mating surface, the wear of the cage, the increase of the bearing clearance, and the damage and abnormality that are irrelevant in dimensional accuracy. Purpose of bearing lubrication: The purpose of lubrication of rolling bearings is to reduce the internal friction and wear of the bearings and prevent burnt sticking.
It is hoped that the shaft lubrication will be opened before the installation, and the grease will be directly filled without cleaning. The lubricating oil is lubricated and does not need to be cleaned normally. However, for instrument or high-speed IKO bearings, it should be cleaned with clean oil to remove the rust inhibitor applied to the outer spherical bearing.

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