Bearing fatigue damage

Some of the common fatigue damages in bearings are caused by a variety of reasons.
       The INA bearing fatigue life test is an intensive fatigue life test method that fully lubricates the wear factor of the automobile bearing to the maximum extent, and uses the enhanced load and speed to highlight the bearing fatigue factor.
The calculation method of bearing fatigue life and fatigue life test are complementary, and the results obtained by the two have sufficient correspondence.
However, in reality, for each specific use case, a sufficient number of INA bearings are taken for life testing to verify that the selected bearings are suitable, which is very economical, time and labor. The test method for the bearing life of an automobile is used only when it is necessary or important. In most cases, the standard life calculation method is used to estimate the service life of the bearing, which has a sufficient degree of dependence.
To predict the fatigue life of an INA bearing and determine the remaining life, it is necessary to know all the bearing fatigue damage, which will take a long time. However, since rolling fatigue is fatigue occurring under the compressive stress of the contact point, great material changes will occur to achieve breakage. Therefore, in addition to the early crack on the surface, the chemical influence of the raceway, and the expansion of the crack prior to the material change, it is possible to determine the fatigue of the automobile bearing by detecting the material change.
The secondary reason for INA bearing breakage is that the defect takes two major voxels. When a applied load crosses the material strength limit to form a part fracture, it is called an overload fracture. The reason for the overload is that the slave suddenly has a problem or is not properly installed. Defects such as microcracks, shrinkage cavities, air bubbles, large foreign bodies, overheated tissue and localized burns of bearing parts are also causing fractures at the defects when they are impacted by overload or violent vibration, called defect fracture. It should be pointed out that the automobile bearing is in the process of being manufactured, and the re-inspection of the material, the control of the casting and the heat treatment, and the control of the process can be accurately analyzed by the instrument to determine whether the above defects can be obtained or not. But in general, all the INA bearing breakage effects are generally overloaded.https://www.supplyforever.com/