Analysis of the Main Causes of Bearing Failure in the Y839 Boiler Fan

Analysis of the Main Causes of Bearing Failure in the Y839 Boiler Fan

Analysis of the Causes of Bearing Failure in the Y839 Boiler Fan: In actual production, there are many factors that cause bearing failure in the Y839 boiler fan, but one factor in particular stands out. Overloading the bearings of the Y839 boiler fan can damage the lubricating oil film. The reasons for bearing wear are as follows: (1) Excessive adjustment of the fan blade angle, resulting in friction between the rotating and stationary parts. The drive belt is too tight, the bearing clearance is too small, and the operating time is too long. Long-term causes, such as lubrication issues, are primarily due to the viscosity of the lubricating oil. Lubricating oil; water contamination in the lubricating oil, insufficient lubricating oil, and other factors Reasons related to Y839 boiler fan accessories and assembly: Substandard quality of accessories. Rough surfaces and low precision of the Y839 boiler fan bearing rollers and sliding surfaces; excessive bearing clearance; the fan shaft not perpendicular to the horizontal plane; damage to individual blades; the damaged Y839 boiler fan bearing housing not securely fastened; and the parallelism between the Y839 boiler fan shaft and the motor shaft exceeding the standard. The causes of bearing failures in the y839 boiler fan include lubricant emulsification in the bearing housing and water ingress during summer firefighting operations; the primary reason for frequent maintenance of the y839 boiler fan is bearing wear caused by emulsification. Wear on the rotating and stationary parts of the Y839 boiler fan, along with frequent vibrations, pose safety hazards due to lubricant leakage from the bearing housing. Therefore, it was decided to partially overhaul the Y839 boiler fan and design a waterproof system for it.