Many users have encountered many problems in the use of SKF bearings. Many problems have arisen in the use of SKF bearings. The general mechanical enterprise staff understand the knowledge of SKF bearings, know how to maintain the bearings, and pay attention to the use of the bearing process. Everything is clear, some newcomers don't understand, just know that simply watching the machine running, today we will introduce a phenomenon that the SKF bearing in the machine will be excited, what is the reason?
1. Vibration behavior in applications
In many applications, the stiffness of an SKF bearing is the same as the stiffness of the surrounding structure. Due to this feature, it is possible to reduce the vibration in the application by properly selecting the SKF bearings (including preload and clearance) and their configuration in the application.
2. The waviness of SKF bearing components
In the case of a tight fit between the SKF bearing ring and the SKF bearing housing or the drive shaft, the SKF bearing ring may be deformed in accordance with the shape of the adjacent component. If deformation occurs, vibration may occur during operation. Therefore, it is important to machine the SKF housing and drive shaft to the required tolerances.
3. Excitation caused by the change in the number of loaded rolling elements
When a radial load is applied to a SKF bearing, the number of rolling elements carrying the load changes slightly during operation, ie this causes a shift in the load direction. The resulting vibration is unavoidable, but can be mitigated by axial preloading and applied to all rolling elements (not suitable for cylindrical roller SKF bearings).
4, local damage
Small parts of SKF bearing raceways and rolling elements may be damaged due to handling or installation errors. In operation, rolling through damaged SKF bearing components produces a specific vibration frequency. Vibration frequency analysis identifies damaged SKF bearing components.
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