The reason of the failure of NSK aligning ball bearing is often many factors, and the influence factors of all design manufacturing process will be related to the failure of bearing, and the analysis is not easy to judge. In general, in general, it can be considered and analyzed from two aspects of the use of factors and internal factors.

Factors mainly refers to the installation and adjustment, maintenance, maintenance and repair, and is in conformity with the technical requirements. Installation conditions is one of the factors in the primary factor use, bearings are often installed due to inappropriate caused stress state changes between the parts of the whole set of bearings, NSK aligning ball bearings under abnormal operation and early failure. According to the bearing installation, use, maintenance, maintenance of the technical requirements, the operation of the bearing to withstand the load, speed, temperature, vibration, noise, and lubrication condition of monitoring and inspection, found abnormal immediately find reasons, to adjust, to return to normal. In addition, the quality of the grease and the surrounding medium, the atmosphere is also very important to analyze the test.

Internal factors mainly refers to the structure design, manufacturing process and material quality and so on to determine the bearing quality of the three factors.

First of all, the structure design is reasonable at the same time with advanced, will have a longer bearing life. Bearing manufacturing generally through forging, heat treatment, turning, grinding and assembly, and other multi-channel processing. The rationality of the processing technology, advanced nature, stability will affect the life of the bearing. Which affects the quality of the finished product bearing the quality of heat treatment and grinding process, often with the failure of the bearing has a more direct relationship. In recent years, the research on the surface modification of the bearing surface shows that the grinding process is closely related to the surface quality of the bearing.

The metallurgical quality of NSK aligning ball bearing material was the main factor affecting the early failure of rolling bearing. With the progress of Metallurgical Technology (such as vacuum degassing of bearing steel, etc.), the quality of raw materials has been improved. Raw material quality factors in the bearing failure analysis of the proportion has decreased significantly, but it is still one of the main factors affecting the failure of bearing. Whether the selection of material is still a factor that must be considered in the analysis of bearing failure.

NSK adjustable ball bearing failure analysis of main task is according to the large amount of background material, analysis of data and failure forms, find out the main factors causing bearing failure, in order to have improvement measures for, extended bearing service, to avoid bearing early sudden failure occurs.