TIMKEN bearing itself does not produce noise. We usually feel the "noise" in fact, directly or indirectly, with the surrounding structure of the vibration of the sound effect. The noise is the result of the spread of vibration in the air by the feelings of the human auditory system.

This is the noise problem in many cases can be considered as related to the vibration of the entire application. Arising as a result of load changes in the number of rolling element excitation when a radial load to load a roller bearing, the number of load bearing rolling element in the operation of a slight change in :2-3-2-3 .... this has led to the offset of the load direction. The resulting vibration is inevitable, but through the axial pre-load to reduce the load at all rolling element
 
1) bearing design parameters: bearing the number of rolling bodies, the ferrule wall thickness, and clearance.
 
2) bearing parts of the manufacturing error: TIMKEN bearing raceway and rolling element surface roughness, the transition pattern degrees and roundness difference. A large number of experimental studies have shown that corrugated roller bearing vibration dominated by relatively small, the influence of surface roughness and roundness.
 
3) bearing the working conditions: TIMKEN the bearing during operation, load, speed, lubrication condition, three aspects of the bearing vibration maximum.
 
4) bearing installation parameters: roller bearing shaft and the bearing with the installation bias factors also have an impact on the bearing vibration.
 
The wave of components in the case of the close tie between the bearing ring and the bearing or drive shaft, the ring may be deformed shape to match adjacent parts. If the deformation, it may lead to vibration in the running. Therefore, the seat and the shaft machined to the required tolerance is very important. Local damage due to the operation or installation errors, a small part of the roller bearing raceway and rolling element may be damaged. Running, rolling across the damaged bearing components will generate a specific vibration frequency. Frequency analysis can identify damaged TIMKEN bearing components. The vibration behavior of applications in many applications, the stiffness and the stiffness of the surrounding structures. Because of this characteristic, as long as correctly choose TIMKEN bearings (including pre-load and clearance) and its configuration in the application, it is possible to reduce applications vibration.



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