Small parts of the bearing raceway and rolling elements may be damaged. During operation, local damage may occur due to operational or installation errors. Rolling over damaged bearing components will generate a specific vibration frequency, and vibration frequency analysis can identify the damaged deep groove ball bearing components. The vibration behavior in the application site is similar to that of the surrounding structure in many applications, where the stiffness of the bearing is the same as that of the surrounding structure. Due to this characteristic, aslong as the bearings (including preload and clearance) are correctly selected and configured in the application, it is possible to reduce vibration in the application.
The rolling bearings in bearings do not produce noise themselves. It is usually felt that the bearing noise is actually the sound effect of the bearing directly or indirectly vibrating with the surrounding structure. The number of rolling elements carrying the load will slightly change during operation. This is why noise problems can often be regarded as vibration problems related to the entire deep groove ball bearing application The excitation caused by the change in the number of rolling elements loaded is when a radial load is applied to a certain bearing. The vibration that occurs as a result is unavoidable but can be alleviated by axial preloading applied to all rolling elements.
The bearing ring may deform due to fitting with the shape of adjacent components. If deformation occurs, vibration may occur during operation due to the tight fit between the bearing ring and the bearing seat or transmission shaft. Therefore, it is important to machine the bearing seat and transmission shaft to the required tolerance.
Contact fatigue failure refers to the failure of the bearing working surface under the action of alternating stress. Contact fatigue peeling occurs on the bearing working surface, often accompanied by fatigue cracks. It first occurs from the large alternating shear stress below the contact surface, and then extends to the surface to form different peeling shapes, such as pitting or pitting peeling, and peeling into small flakesis called shallow peeling. Wear failure refers to the failure caused by the continuous wear of the working surface metal due to the relative sliding friction between the surfaces. Continuous wear will gradually damage the bearing parts and ultimately lead to the loss of dimensional accuracy and other related problems of deep groove ball bearings. Wear may affect shape changes, increase fit clearance, and change the working surface morphology, which may affect the lubricant or contaminate it to a certain extent, causing complete loss of lubrication function. As a result, deep groove ball bearings lose rotational accuracy and cannot operate normally. Wear failure is one of the common failure modes of various types of bearings, which can be divided into common abrasive wear and adhesive wear according to the wear form.
1. It is the outer ring running trajectory when the radial load is correctly applied to the deep groove ball bearing used in the inner ring rotation load.
2. It is a running trajectory where the inner and outer rings are relatively inclined and the shaft has a large deflection. The running trajectory of the raceway surface produces a gradient in its longitudinal direction at the outlet of the load ring, and the running trajectory is inclined. The bearing rotates the inner ring
3. Indicate the running trajectory of the outer ring when only bearing radial loads. L represents the trajectory when only subjected to axial load. When the inner and outer rings are relatively inclined and only bear radial loads, their trajectory deviates 180 degrees from the two track surfaces. Position (m).