ntn bearing noise and to identify and repair

1. By working to identify the temperature
This method is more recognition method is limited to use in running condition is not change the situation. To this end, the temperature must be continuously recorded. Fails, the temperature not only increased, but also irregular changes. This method is suitable voice recognition method and use.
2. Through the identification of the state of lubricant
Sampling and analysis of the lubricant, through its pollution level, whether or metal powder mixed with foreign judgments, etc.. This method can not be close to the observed large-scale import of import bearings or bearing especially effective.
3. Through voice identification
To identify needs through sound experience. Must be adequately trained to be able to identify imported bearings imported bearings with non-voice sounds. Therefore, we should try to carry out this work by hand. Listening, or listening with a stick attached to the enclosure can clearly hear the voice of imported bearings.
ntn bearing noise Maintenance:
1.ntn bearing jarring noise and its control jarring sound of a cylindrical roller bearings on all occasions possible ear-piercing sound of metal friction, most of grease lubrication in bearings larger models, while in the base oil properties more likely to have deterioration of lubricating grease, oil lubrication in almost no time. In addition, more prone to occur in winter, when pure radial load bearing, radial clearance in the big occasions vulnerable, and with models of different sizes, in the context of a particular speed is high, both occurring consecutive will also intermittent. External ring raceway take special processing methods to prevent the emergence of jarring sound,
When necessary use of such bearings, or appropriate to reduce the radial bearing clearance, excellent performance and the bearing grease and match parts to improve rigidity.
2. Rolling sound and control the impact of large models of ball bearings or cylindrical roller bearings in a pure radial load, low speed operation, due to the centrifugal force rolling small area in the non-load rolling element will impact or roller and cage noises. But with the speed increase, this sound will disappear. Impact on the rolling sound control methods include: reduction of radial clearance appropriate to use a reasonable structure of the material is supple nature of the bearing cage. (2) the ball and control the impact of large acoustic models of ball bearings or cylindrical roller bearings in a pure radial load, low speed running,
As the ball centrifugal force smaller area in the non-load rolling element will impact the cage or raceway and noises. But with the speed increase, this sound will disappear. Impact on the rolling sound control methods include: reduction of radial clearance appropriate to use a reasonable structure of the material is supple nature of the bearing cage.

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