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1, and check NSK bearing in work in the of vibration situation from peeling, and pressure trace, and rust, and crack, and wear, will in bearing of vibration measurement in the reflect, NSK bearing vibration on bearing of injury is is sensitive of, therefore, and through used special of NSK bearing vibration measurement Manager (frequency Analyzer,) can measurement out vibration of size, through frequency points not inferred out exception of specific situation. Due to the conditions of use of measured values for bearings or sensor installation location different is required prior to each machine after analysis and comparison of the measured values determined in its discretion standard.
2, check the sound because bearings NSK bearings as you scroll even with minor injuries such as split, also is making an abnormal sound and irregular sound, so using the measuring apparatus can be distinguished using acoustic logging, NSK bearings in operation size of the scroll and the sound quality is checked, playing the role of prevention in advance.
3, NSK bearings rotation should be checked for temperature if using oil hole can directly measure the bearing outer ring temperature, is more appropriate. Under normal circumstances, the bearing temperature, generally on bearing housing outside of the temperature will be conjecture. If lubricated, install appropriate, NSK bearing temperature is rising quite sharply, abnormal high temperature appears, then you must stop running and take the necessary precautions.
In General, NSK bearing's temperature as the operation began slowly to rise, 1-2 hours to stabilize. NSK bearing normal temperatures as the heat capacity of the machines, thermal output, speed and load to another.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7220CTYNDBLP4 NSK | 100 | 180 | 34 |
| 7219ATYNDBLP4 NSK | 95 | 170 | 32 |