Common faults and solutions of Dalian railway bearings

Common faults and solutions of Dalian railway bearings

As a key component of railway transportation equipment, the operation status of Dalian railway bearings directly affects the safety and efficiency of trains. Understanding common faults and their solutions is crucial for ensuring railway transportation.

Wear and tear fault: Railway bearings will experience wear and tear between rolling elements and raceways due to friction during long-term operation. This may be due to poor lubrication, resulting in an increase in friction coefficient; It is also possible that foreign objects have entered the interior of the bearing, exacerbating wear. To solve the problem of wear and tear, the first step is to ensure that the bearings receive sufficient and appropriate lubrication, regularly inspect and replace lubricants, and select lubrication products that meet the working requirements of railway bearings. At the same time, strengthen sealing and protection measures to prevent foreign objects such as dust and impurities from entering.

Fatigue peeling fault: Prolonged exposure to alternating loads can cause fatigue peeling on the surface of railway bearings. When the load exceeds the fatigue limit of the bearing material, small cracks gradually form and propagate, leading to surface material peeling. To prevent fatigue spalling, it is necessary to choose the appropriate bearing model to ensure that its load-bearing capacity meets the actual operational requirements. In daily maintenance, non-destructive testing technology is used to regularly inspect the surface condition of bearings. Once early cracks are found, bearings should be replaced in a timely manner to avoid deterioration of the fault.

Overheating fault: If overheating occurs during bearing operation, it may be due to improper assembly, resulting in insufficient bearing clearance, increased friction, and excessive heat generation; It may also be due to poor heat dissipation conditions. To solve the overheating problem, it is necessary to strictly follow the standard for assembly and ensure that the bearing clearance is appropriate. At the same time, optimize the heat dissipation structure, such as adding heat sinks or improving ventilation conditions, to dissipate heat in a timely manner.

Through in-depth understanding and effective solutions to common faults in railway bearings in Dalian, the reliability and service life of railway bearings can be improved, providing solid guarantees for the safe and efficient operation of railway transportation.