Using INA non-standard bearing failure caused by high temperature

Because the INA bearing is high precision products, such as improper assembly is easy to cause damage to bearing channel, result in bearing damage. When bearing assembly shall have a dedicated mold, not casually, only small circle of stress when pressure into the shaft, pressure can force the circle circle. Require the use of pneumatic or hydraulic assembly, lower die when being connected to outside the state level, if there are any tilt can lead to a non-standard bearing channel due to mechanical damage, and make the bearing guide ring. Bearing in loaded on the rotor dynamic balance when it is easy to will be generated when the dynamic balance of iron into internal INA bearing, so it is best to install bearing before do dynamic balance. Some manufacturers in order to convenient assembly, assembly in bearing indoor coated with some oil or grease lubrication effect, but usually operators good amount of it is hard to control, if oil or grease in the bearing interior storing up more, the non-standard bearing rotates along axis to the bearing inside easily. Bearing is best not to apply oil or grease, if must apply to control shall not be storing up in bearing interior. Rust paint is characterized by multiple in sealing type motor, the motor sound is very good, when it is assembled but put some time in the warehouse, the motor sound is very big, remove the bearing has serious rust phenomenon. Many manufacturers will think is a problem of INA bearings before, after our propaganda, motor factory now have realized mainly is a question of insulating varnish. Acid varnish comes out of the problem is mainly due to the formation of corrosive substances under certain temperature, humidity, and damage to the bearing channel after the corrosion cause of non-standard bearings. The problem now is only to choose good insulating paint, after drying and ventilation assembly after a period of time. Bearing life is closely related to manufacturing, assembly, use, and must be made at each link to make the bearing is in optimum operation state, so as to prolong the service life of INA bearings. On analyzing the factors mainly look, use, maintenance, repair and maintenance to install the related operations is not conform to the requirements of the bearing of the official. Installation conditions is to use one of the primary factor of bearing elements, non-standard bearings are often caused by improper installation of a complete set of change the stress of bearing between various parts, INA bearings under the abnormal state of operation and early failure. According to the bearing installation, use, maintenance, maintenance of technical requirements, the operation of the bearing on the load, speed, temperature, vibration, noise and lubrication condition monitoring and inspection, found that abnormal immediately to find the reason, adjustment, so that it is back to normal. In addition, for the quality of the lubricating oil and the surrounding medium test is important. Structure design is reasonable and advanced, will have a long bearing life. Bearing manufacturing generally go through forging, heat treatment, cutting, grinding and assembly, and multi-channel processing operations. The rationality of the processing technology, advanced, stability will also affect the INA bearing's life. Which affects the quality of finished products bearing heat treatment and grinding process, tend to have a more direct relationship with bearing failure. Metamorphic layer on the surface of a bearing work in recent years, research has shown that the surface quality of the grinding process and its close then, bearing the main reason for the failure analysis is based on a lot of background material, analysis data and failure forms, find out the main factors of bearing failure, so that the improvement measures are put forward, and extend the non-standard bearing, to avoid premature failure of the attack.