NSK调心球轴承失效的原因往往是多因素的，所有设计制造过程的影响因素都会与轴承的失效有关，分析起来不易判断。在一般情况下，大体上可以从使用因素和内在因素两方面考虑和分析。
The failure of NSK aligning ball bearing is often caused by many factors. All the factors affecting the design and manufacture process will be related to the failure of the bearing, which is difficult to judge. Generally speaking, it can be considered and analyzed from two aspects: the use factor and the internal factor.
使用因素主要是指安装调整、使用保养、维护修理等是否符合技术要求。安装条件是使用因素中的首要因素之一，轴承往往因安装不合适而导致整套轴承各零件之间的受力状态发生变化，NSK调心球轴承在不正常的状态下运转并提早失效。根据轴承安装、使用、维护、保养的技术要求，对运转中的轴承所承受的载荷、转速、工作温度、振动、噪声和润滑条件进行监控和检查，发现异常立即查找原因，进行调整，使其恢复正常。此外，对润滑脂质量和周围介质、气氛进行分析检验也很重要。
The use factors mainly refer to installation adjustment, use maintenance, maintenance and repair, etc. Installation condition is one of the most important factors in the use of bearings, often due to improper installation of bearings lead to the whole set of bearing parts between the stress state changes, NSK alignment ball bearings in abnormal operation and early failure. According to the technical requirements of bearing installation, use, maintenance and maintenance, the load, rotational speed, working temperature, vibration, noise and lubrication conditions of the bearing in operation are monitored and checked, and the causes of abnormalities are immediately found and adjusted to make it return to normal. In addition, it is also important to analyze the quality of grease and the surrounding medium and atmosphere.
内在因素主要是指结构设计、制造工艺和材料质量等决定轴承质量的三大因素。
Internal factors mainly refer to the structural design, manufacturing process and material quality of the three factors that determine the quality of bearings.
首先，结构设计合理的同时具备有先进性，才会有较长的轴承寿命。轴承的制造一般要经过锻造、热处理、车削、磨削和装配等多道加工工序。各加工工艺的合理性、先进性、稳定性也会影响到轴承的寿命。其中影响成品轴承质量的热处理和磨削加工工序，往往与轴承的失效有着更直接的关系。近年来对轴承工作表面变质层的研究表明，磨削工艺与轴承表面质量的关系密切。
First of all, the reasonable design and advanced nature of the structure will lead to longer bearing life. The manufacturing of bearings is usually done through forging, heat treatment, turning, grinding and assembling. The rationality, advancement and stability of each processing technology will also affect the life of bearings. The heat treatment and grinding processes that affect the quality of finished bearings are often more directly related to the failure of bearings. In recent years, the research on the deteriorating layer of bearing working surface shows that the grinding technology is closely related to the bearing surface quality.
NSK调心球轴承材料的冶金质量曾经是影响滚动轴承早期失效的主要因素。随着冶金技术（例如轴承钢的真空脱气等）的进步，原材料质量得到改善。原材料质量因素在轴承失效分析中所占的比重已经明显下降，但它仍然是轴承失效的主要影响因素之一。选材是否得当仍然是轴承失效分析必须考虑的因素。
The metallurgical quality of NSK aligning ball bearing material was the main factor affecting the early failure of rolling bearings. With the progress of metallurgical Technology (such as vacuum degassing of bearing steel), the quality of raw materials has been improved. The proportion of raw material quality factors in bearing failure analysis has been significantly reduced, but it is still one of the main factors affecting bearing failure. Proper selection is still a factor to be considered in bearing failure analysis.
NSK调心球轴承失效分析的主要任务，就是根据大量的背景材料、分析数据和失效形式，找出造成轴承失效的主要因素，以便有针对性地提出改进措施，延长轴承的服役期，避免轴承发生突发性的早期失效。
The main task of failure analysis of NSK aligning ball bearings is to find out the main factors causing bearing failure according to a large number of background materials, analysis data and failure forms, so as to put forward improvement measures to prolong the service life of bearings and avoid sudden early failure of bearings.