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NSK bearing a direct bearing on the operational status of rotating equipment, bearing in the device application is extensive. Especially in the continuity of production enterprises, widely applied in large rotating equipment vital parts and, therefore, actual production in the good condition monitoring and fault diagnosis of bearing is important part of improving equipment maintenance and management. After the provisional practice and trial and error, have some practical skills for fault diagnosis of bearings.
One, bearing fault diagnosis method and key points
NSK bearings are practical method for condition monitoring and fault diagnosis of vibration analysis. Required attention to the signal acquisition and accurate real, practical needs attention to select the location of the measuring point and acquisition methods. To be true and accurate reflect the State bearing vibration.
II, bearing characteristics of normal operation and practical diagnostic skills
NSK bearings in the course of its use to demonstrate a high level of regularity, found temporary production status monitoring. And very good repeatability. Normal quality bearings when used at the start, vibration and noise are small, but some scattered spectrum, amplitude is small, it may be due to some defect in the manufacturing process, such as the appearance of burrs caused by.
Three, bearing characteristics and diagnostic techniques of abnormal operation
The mobile bearing and serious fault is often caused by sudden catastrophic such as adhere to the sudden rupture, NSK bearings inner and outer rings of bearing burning bursting fracture and so on, due to fake bearings will inevitably enter the enterprise and device now. These failures will cause the rotor axle, severe cases cause the rotor or scrapping of equipment.
Rapid diagnosis of bearing of four, practical skills
Often simply judge the NSK bearing for better or worse, in actual condition monitoring. How long it can be used, and sophisticated analysis and diagnosis of fault diagnosis of bearings in a parts are often little practicality. Practical precision diagnosis due to the effects of factors such as working conditions, often find bearings correspond to the characteristic frequency. Although in recent years the development of fast Wavelet analysis and common analysis on vibrating demodulation technology more accurate, but the equipment required a substantial investment, but also require more analysis, onsite troubleshooting applications typically have fewer personnel.
Five bearings, practical spectral analysis and diagnosis techniques
NSK bearings kurtosis is unlikely, now uses a more general data collector. But note in the practical skills. Little vibration. Vibration signal spectrum complex, difficult to judge when there is trouble-free, the vibration signal acquisition back, spread to computers for precise analysis.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| RNA4852 NSK | 285 | 320 | 60 |
| RNA4848 NSK | 265 | 300 | 60 |