Small localized bearing raceways and rolling elements may be damaged. In operation, partial damage due to operation or installation errors. Rolling over damaged bearing components produces a specific vibration frequency. Vibration frequency analysis identifies damaged cylindrical roller bearing components. Vibration Behavior in the Application Site In many applications, the stiffness of the bearing is the same as the stiffness of the surrounding structure. Because of this feature, it is possible to reduce vibration in the application as long as the bearing (including preload and clearance) is properly selected and its configuration in the application. Rolling bearings in ina bearings do not generate noise themselves. Bearing noise is usually perceived as a sound effect in which the ina bearing vibrates directly or indirectly with the surrounding structure. The number of rolling elements that carry the load varies slightly during operation, which is why many times noise problems can be viewed as vibration problems involving the entire cylindrical roller bearing application. Excitation due to changes in the number of loaded rolling elements when a radial load is applied to a bearing. The resulting vibrations are unavoidable but can be mitigated by axial preloading on all rolling elements. The bearing ring may be deformed to match the shape of the adjacent parts. If deformation occurs, the waviness of the part is in the case of a tight fit between the bearing ring and the bearing seat or drive shaft. Vibration may occur during operation. Therefore, it is important to machine the bearing housing and drive shaft to the required tolerances. Contact fatigue failure refers to the failure of the ina bearing working surface under the action of alternating stress. Contact fatigue spalling occurs on the working surface of the bearing, and is often accompanied by fatigue cracks. It first occurs from the maximum alternating shear stress below the contact surface, and then expands to the surface to form different spalling shapes, such as pitting or pitting spalling. The peeling off into small flakes is called shallow peeling.
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