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NTN tapered roller bearing vibration phenomenon causes in the running - bearing knowledge

by:Waxing     2020-05-26
Generally speaking, the rolling bearing itself does not produce noise. Often feel 'NTN tapered roller bearing noise' is in fact bearing directly or indirectly, with the surrounding structure vibration sound effects. This is why many times the noise can be seen as involving the whole NTN tapered roller bearing vibration problem of application. Due to loading quantity change roller vibration when a radial load loading in an imported bearing, the number of rolling element bearing load will be a slight change in the operation, i. e. , 2 - 3 - 2 - 3. 。 。 。 This caused the load in the direction of migration. The resulting vibration is inevitable, but can be by axial preload to ease, loading in all rolling body ( Do not apply to the cylindrical roller bearing) 。 Parts of waviness in NTN tapered roller bearing and the bearing or the shaft between reamer, NTN tapered roller bearing ring with adjacent components are likely to match the shape and deformation. If there is a deformation, can produce vibration in the operation. Therefore, the bearing and the shaft are machined to the required tolerance is very important. Local damage due to the operation or installation errors, a small number of NTN tapered roller bearing raceway and rolling element may be damaged. In the running, rolled NTN tapered roller bearing damaged parts will produce a particular vibration frequency. Vibration frequency analysis can identify the damaged bearing parts. The vibration behavior of applications in many applications, NTN tapered roller bearing stiffness with the surrounding the stiffness of the same structure. Due to this feature, as long as the correct choice NTN tapered roller bearings ( Including the preload and clearance) And its application in the configuration, it is possible to reduce the application of vibration. There are three methods can reduce vibration: - get rid of critical excitation vibration from the application; - antimicrobial resistance stimulate critical excitation vibration between components and the resonance components; - change the stiffness of the structure, so as to change the critical frequency.
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