NSK bearings vibration damage of the four reasons - bearing knowledge

NSK bearings vibration in production in general, NSK bearings rolling itself does not produce noise. Usually feel NSK bearings of NSK bearings 'noise' is, in fact, directly or indirectly, with the surrounding structure vibration sound effects. This is why many times the noise can be seen as involving the whole the vibration problems of the application of NSK bearings. Due to loading quantity change roller vibration when a radial load loading in an NSK bearings, the number of rolling element bearing load will be a slight change in the running, 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 ( NSK bearing) is not applicable to cylindrical roller 。 Local damage due to the operation or installation errors, a small number of NSK bearing raceway and rolling element may be damaged. NSK bearings in operation, rolled the damaged parts will produce a particular vibration frequency. NSK bearings vibration frequency analysis can identify the damaged parts. This principle has been used in the condition monitoring equipment, NSK bearings used to detect the damage situation. NSK bearings to calculate frequency, please see the application NSK bearings 'frequency'. The precision of the related components in NSK bearing NSK bearing ring with or under the condition of close cooperation between the shaft, NSK bearing ring with adjacent components are likely to match the shape and deformation. If there is a deformation, can produce vibration in the operation. Pollutants if running in the environmental pollution, impurities may be rolling element into the NSK bearings and rolling. Vibrations depends on the number of impurity particles crushed, size, and composition won't produce the frequency of the typical form, but you can hear a disturbing noise.