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南京INA轴承失效的主要原因是两个主要因素：缺点和过载。当外部载荷超过材料强度极限时，零件开裂称为过载开裂。超载的主要原因是主机的突然损坏或安装不当。轴承部件的微裂纹、缩孔、气泡、异物、过热结构、局部烧灼等缺点也会在冲击、过载或剧烈振动下产生裂纹，称为缺点裂纹。
The main reasons for the failure of INA bearings in Nanjing are two main factors: disadvantages and overload. When the external load exceeds the material strength limit, the part cracking is called overload cracking. The main reason for overload is the sudden damage or improper installation of the main engine. Bearing components of micro-cracks, shrinkage holes, bubbles, foreign bodies, superheated structure, local cauterization and other shortcomings will also produce cracks under impact, overload or violent vibration, called defective cracks.
应当指出，上述缺点可以通过仪器手段进行正确分析，包括南京INA轴承原材料的重新检验、铸件的质量控制、轴承制造过程中的热处理和加工控制。今后仍有必要加强控制。一般来说，轴承故障大多是过载故障。
It should be pointed out that the above shortcomings can be correctly analyzed by instrumental means, including the re-inspection of raw materials for Nanjing INA bearings, the quality control of castings, the heat treatment and processing control in the manufacturing process of bearings. It is still necessary to strengthen control in the future. Generally speaking, bearing failures are mostly overload faults.
在运行中，由于南京INA轴承外部或内部因素的影响，原有的配合间隙发生了变化，精度下降，甚至“咬死”间隙的变化也变得无效。过干涉、安装不当、温升引起的大膨胀、瞬态过载、残余奥氏体和不稳定状态下的残余应力是导致空洞转变失效的主要原因。
In operation, due to the influence of external or internal factors of Nanjing INA bearing, the original fit clearance has changed, the accuracy has decreased, and even the change of "bite dead" clearance has become invalid. Over-interference, improper installation, large expansion caused by temperature rise, transient overload, retained austenite and residual stress in unstable state are the main causes of void transformation failure.
如果达到良好的平滑性，杂质和湿气的正确阻塞表明不应该戴油封。然而，尽量在南京INA轴承箱打开时观察轴承并定期检查油封。检查轴承附近的油封，确保它们足以防止热或腐蚀性液体或气体沿轴穿透轴承、油或气体。如果密封件磨损，应尽快更换。
If a good smoothness is achieved, the correct obstruction of impurities and moisture indicates that oil seals should not be worn. However, observe bearings as far as possible when the INA bearing box opens in Nanjing, and check the oil seals regularly. Check the oil seals near the bearings to ensure that they are sufficient to prevent hot or corrosive liquids or gases from penetrating the bearings, oil or gases along the shaft. If the seal is worn, it should be replaced as soon as possible.
高温常表明南京INA轴承处于异常状态。高温对轴承润滑剂也是有害的。有时轴承的过热可以归因于轴承的平滑剂。如果轴承运行超过125摄氏度，轴承寿命将减少。
High temperature often indicates that the INA bearing of Nanjing is in an abnormal state. High temperature is also harmful to bearing lubricants. Sometimes the overheat of the bearing can be attributed to the smoothing agent of the bearing. If the bearing runs more than 125 degrees Celsius, the bearing life will be reduced.
高温轴承失效的原因包括：润滑不适或过热平滑、载荷平滑剂、过载、轴承损坏、间隙不足、高温油封冲突等。
Failure causes of high temperature bearings include: lubrication discomfort or overheating smoothing, load smoothing agent, overload, bearing damage, insufficient clearance, high temperature oil seal conflict, etc.
文章来自：南京SKF轴承 www.wh-skf.com
The article is from: Nanjing SKF bearing www.wh-skf.com
文章来自：南京INA轴承 www.ina-china.cn
The article is from: Nanjing INA bearing www.ina-china.cn
文章来自：南京NSK轴承 www.klbbearings.com
The article is from: Nanjing NSK bearing www.klbbearings.com
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