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INA bearings are precision components, therefore requiring considerable care in their use. Even high-performance thrust ball bearings cannot achieve their intended performance and can easily be damaged if used improperly. Therefore, the following precautions should be taken when using bearings:
Even microscopic dust, invisible to the naked eye, entering the bearing will increase wear, vibration, and noise.
Strong impacts are prohibited. Direct hammering of the bearing is prohibited. Pressure should not be transmitted through the rolling elements. It is recommended to open the INA bearing packaging only during installation. For ordinary grease lubrication, do not clean the bearing before applying grease. For oil lubrication, cleaning is generally not necessary. However, for bearings used in instruments or at high speeds, clean with clean oil to remove the rust inhibitor applied to the bearing. Bearings without rust inhibitor are prone to rusting and should not be left unattended.
I. Maintain the cleanliness of the bearing and its surrounding environment. Even microscopic dust, invisible to the naked eye, entering the thrust ball bearing will increase wear, vibration, and noise.
II. Care must be taken when using the bearing. Forceful impact is prohibited. Directly striking the bearing with a hammer is forbidden. Pressure must not be transmitted through the rolling elements.
III. Use appropriate and safe tools. Use specialized tools whenever possible, and avoid using cloths or short-fiber materials.
IV. Prevent bearing corrosion. When handling bearings directly, thoroughly wash away sweat and apply high-quality mineral oil before handling. Pay special attention to rust prevention during the rainy and summer seasons.
However, under certain special operating conditions, thrust ball bearings can achieve a lifespan better than conventionally calculated, especially under light loads. These special operating conditions are when the rolling surfaces (raceways and rolling elements) are effectively separated by a lubricating oil film, limiting surface damage that may be caused by contaminants. In fact, under ideal conditions, a so-called perpetual bearing life is possible.
INA bearing life is defined in revolutions (or hours of operation at a given speed): within this life, the bearing should experience initial fatigue damage (sparging or chipping) on any of its bearing rings or rolling elements. However, in both laboratory experiments and practical applications, it is evident that thrust ball bearings with identical appearances under the same operating conditions can have vastly different practical lifespans. Furthermore, there are several different definitions of bearing "life," one of which is the so-called "operating life," which indicates the practical life a bearing can reach before failure. Failure is usually not caused by fatigue, but rather by factors such as wear, corrosion, and seal damage.
INA bearing life is defined in revolutions (or operating hours at a given speed): within this lifespan, the bearing should experience initial fatigue damage (sparging or chipping) on any of its bearing rings or rolling elements. However, in both laboratory experiments and practical applications, it is evident that thrust ball bearings with identical appearances under the same operating conditions can have vastly different practical lifespans. Furthermore, there are several different definitions of bearing "life," one of which is the so-called "operating life," which indicates the practical life a bearing can reach before failure. Failure is usually not caused by fatigue, but rather by factors such as wear, corrosion, and seal damage.
