TIMKEN roller bearing caused by vibration during operation of the four factors

TIMKEN bearings in itself does not produce noise. We usually feel 'noise' is, in fact, directly or indirectly, with the surrounding structure vibration sound effects. Noise is the vibration propagation in the air by the human auditory system results. This is a time when many noise problems can be seen as involving the vibration problems of the application of the whole. Because of the loading quantity change and roller vibration when a load on a roller bearing radial load, the number of rolling element bearing load will be a slight change in the running, 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 all the roll body (1) Bearing design parameters, including the number of rolling element bearings, ring throwing, wall thickness and clearance, etc. 2) Bearing parts manufacturing error: including TIMKEN bearing raceway and rolling body surface roughness, grain degree and the roundness error. A large number of experimental study show that the waviness of roller bearing vibration influence of dominant, and the influence of surface roughness and the roundness is relatively small. 3) Bearing working conditions: TIMKEN bearing in the process of operation, load, speed, lubrication condition the influence of the three aspects of bearing vibration is the largest. 4) Bearing installation parameters: the roller bearing and the shaft and bearing seat, and the bias of installation and other factors also affect the vibration of the bearing. Parts of the wave degrees between the bearing ring and bearing or the shaft under the condition of reamer, circle with adjacent components are likely to match the shape and deformation. If there is a deformation, can produce vibration in the operation. As a result, the bridge 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 roller bearing raceway and rolling element may be damaged. In the running, rolled the damaged bearing parts will produce a certain vibration frequency. Vibration frequency analysis can identify the damaged TIMKEN bearing parts. The vibration behavior of applications in many applications, the stiffness with the surrounding the stiffness of the same structure. Due to this feature, as long as the correct choice TIMKEN bearing ( Including the preload and clearance) And its application in the configuration, it is possible to reduce the application of vibration.