The reason for the failure of lubricating grease?

Grease is used a lot in the lubrication and maintenance of machinery and equipment, and it plays a very important role in the maintenance of equipment. Once the grease fails, if it cannot be found in time, it will cause great damage to the equipment. Therefore, when using grease It is necessary to observe the use state frequently, understand the reasons for the failure of the grease, and timely prevent and prevent the loss caused by the failure of the grease. This article mainly analyzes what are the reasons for the failure of the grease?