Spherical roller bearing fault diagnosis technology vibration diagnostic techniques, diagnostic techniques Ferrography temperature diagnostic techniques, acoustic diagnostic techniques, the film resistance diagnostic technology and fiber optic monitoring and diagnosis technology, which vibration Tiepu, temperature diagnostic technology applications and more.
First, the structural design is reasonable, while with advanced, will have a long-aligning roller bearing life. Bearing manufacturing generally after forging, heat treatment, turning, grinding and assembly of multi-channel processing. Reasonable process, advanced, stability can also affect the life of the bearing. Which affect the quality of products bearing the heat treatment and grinding process, tend to have a more direct relationship with the failure of the bearing. In recent years, the study showed that the affected layer of the bearing surface, the close relationship of the grinding process with the bearing surface quality.
Metallurgical quality of the bearing material once the main factors affecting the rolling bearing to early failure. With the advances in metallurgical technologies (such as bearing steel vacuum degassing), to improve the quality of the raw materials. The proportion of the raw material quality factors in bearing failure analysis has decreased significantly, but it is still one of the main factors bearing failure. The selection is still bearing failure analysis must consider the factors properly.
The main task of bearing failure analysis, is based on a lot of background material, analysis of data, and failure modes to identify the main factors causing bearing failure so that the proposed improvements to extend bearing service period, to avoid self-aligning roller bearings A sudden early failure occurred.
A vibration diagnostic techniques
Spherical Roller Bearing components work surface fatigue spalling, indentation, or localized corrosion, self-aligning roller bearings run there will be a periodic pulse signal. This periodic signal can be mounted on the bearing seat of the sensors (speed or acceleration type) to receive, through the analysis of the vibration signal to diagnose the fault aligning roller bearings.
Features: wide range of the vibration diagnostic technology application; online monitoring; diagnosis, diagnostic theory has matured.
Applications: especially suitable for self-aligning roller bearings in rotating machinery fault monitoring.
Ferrography diagnostic techniques
Spherical roller bearing wear particles and their working conditions are closely linked. Lubricant with wear particles by a strong magnetic field, the role of the strong magnetic field, abrasive precipitated according to certain rules on in Ferrography piece the iron spectrum piece on in Ferrography microscope for qualitative observation or test in a quantitative instrument judge Spherical roller bearings working condition.
Features: machine without disintegration; investment is low, the effect is good; early fatigue failure can be found Spherical roller bearings; wear mechanism to do research.
Applications: Suitable for lubricating Spherical roller bearings fault diagnosis difficult Spherical roller bearings with grease lubrication.
Third, the film resistance diagnostic techniques
Oiled-aligning roller bearings between the inner and outer rings due to the role of the film, a lot of resistance. Therefore, by measuring the self-aligning roller bearings, the outer ring of resistance, can be reversed Spherical Roller Bearing exception to make judgments.
Features: use the same criteria for different working conditions. Flaking, indentation, cracks and other abnormal diagnostic poor.
Applications: apply to the rotating shaft exposed occasions.


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