Common Fault diagnosis of Spherical Roller Bearings in Cement Industry

Spherical Roller Bearing are a very important rotating component in cement equipment, and are also a major source of cement equipment. This article mainly elaborates on the diagnostic methods for common faults of self-aligning roller bearings in cement equipment, and further analyzes their practical skills. Through practice, it has been proven that these methods are very easy to use and maintain in cement equipment, and also reflect good economic efficiency in the use process.

In cement equipment, self-aligning roller bearing is a very important rotating part, and also a main source of cement equipment. To a certain extent, the good operation status of self-aligning roller bearings is directly related to the performance of the entire equipment.

On the whole, the self-aligning roller bearing is a very precise part in the machine. Usually, the tolerance of self-aligning roller bearings is controlled within about one tenth of the tolerance of other components. However, a large number of practical studies have shown that less than 10% of bearings can reach the theoretical operating life. Among them, 40% of bearings fail mainly due to lubrication problems, while 30% fail due to jamming or incorrect assembly errors. In addition, Another 20% of failures are caused by defects in manufacturing or overloading during use. There are many examples of equipment failures caused by early failures of self-aligning roller bearings in cement machinery equipment.

So, in our work, we must promptly detect faults, actively search for the root cause of faults, and then eliminate them through corresponding remedial measures. This is the key to ensuring the normal operation of equipment. The fault diagnosis technology and dynamic monitoring technology for self-aligning roller bearings can detect potential faults early during use, and can also improve the performance and management level of the equipment. The economic benefits in actual use are very significant. Based on the above background, this paper further analyzes and discusses the practical skills of fault diagnosis and treatment of self-aligning roller bearings in cement equipment. Now let's enter into the discussion of this paper.

Typical fault analysis

As for spherical roller bearings, their early failures mainly include roller and raceway peeling, cracking, and dents. The main reasons for these malfunctions are careless handling, careless installation, and tilting of bearings. Generally speaking, the main mode of failure of self-aligning roller bearings in cement equipment is simple fatigue peeling caused by rolling contact. The surface area of peeling is approximately 2mm2, and the depth is approximately 0.2-0.3mm. Its surface area and depth can be determined by monitoring instrument vibration. This kind of peeling may occur on the outer ring, inner ring, and rolling element, among which the inner ring has a relatively high contact stress, so the possibility of fracture is greater.