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Mainly refers to the use of factors of installation and adjustment, use and maintenance, maintenance and repair compliance with technical requirements. Installation conditions is one of the leading factors in the use factor, import bearings are often caused by the installation of inappropriate stress state between the various parts of the complete bearing change, bearing an abnormal state operation and early failure. According to the requirements of imported bearings installed, use, maintenance, maintenance technology, the bearing of the bearing in operation load, speed, temperature, vibration, noise and the work of lubrication condition monitoring and inspection, found abnormal immediately find reasons, adjust, restore normal. In addition, the quality of lubricating grease and the surrounding medium, gas analysis test is also very important. How to judge the quality of imported bearings? Please see "how to judge the quality of imported bearings" the introduction.
Internal factors mainly are the three major factors refer to structural design, manufacturing process and material quality decides the quality of imported bearings.
First of all, reasonable structure design of both have advanced, there will be a longer bearing life. Manufacture of bearings are generally after forging, heat treatment, turning, grinding and assembly etc. multiple processing procedures. Rationality, advanced, stability of the machining process can also affect the life of bearing. The effect of heat treatment and grinding process quality of finished bearings, often has a more direct relationship with the failure of the bearing. The research showed that the working surface of the bearing metamorphic layer in recent years, the relationship between the grinding process and the bearing surface quality closely.
The metallurgical quality of imported bearing materials are the main factors affecting the early failure of rolling bearings once. With the development of Metallurgical Technology (such as vacuum degassing of steel bearing) progress, improved quality of raw materials. Raw materials quality factors have a significant decline in the proportion of bearing failure analysis, but it is still one of the main influence factors of bearing failure. Proper selection is still bearing failure analysis of factors must be taken into consideration.