Analysis of the skills of the launching machine sliding bearing (1)

Analysis of the Skills of the Launching Machine Sliding Bearing (1)

Source: Bearing Network | Time: 2014-05-04
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Sliding bearings are an essential component in launching machines, and they include both bushings and bearing shells. These types of bearings are critical for ensuring the precision and smooth operation of the machine. The working clearance of these sliding bearings must be maintained at a high standard to avoid performance issues. The primary causes of damage to sliding bearings in launching machines often stem from poor lubrication conditions or contamination that disrupts the oil film. Common factors include improper installation, unclean parts, incorrect application methods, and chemical reactions. According to an analysis by Cummins in the United States, four main reasons contribute to the failure of sliding bearings: 1. **Contamination due to poor hygiene** – 45% 2. **Wear caused by inadequate lubrication** – 25% 3. **Damage from improper use or equipment misalignment** – 15% 4. **External factors such as chemical exposure** – 15% From this breakdown, it's clear that hygiene is the most significant factor affecting bearing life. To prevent damage from unclean conditions, it's crucial to maintain cleanliness during assembly and throughout the operational process. Operators and maintenance personnel should follow proper procedures, especially when working in environments with dust or chemicals. Protective measures must be taken to prevent corrosion and extend the lifespan of the machine. The outer bearing alloy layer of the main bearing bush and connecting rod in the launching machine is the softest part and bears the highest load. Therefore, any damage to these components can lead to serious failures. When damage occurs, it's important to analyze the root cause to prevent recurring problems. **Common Issues Caused by Poor Hygiene:** 1. **Wear from Small Particle Contamination:** During engine oil drainage, small particles like alloy powder may appear in the first few drops of oil. These particles can enter the bearing surface, causing gradual wear. Although initial damage may not be severe, continued exposure leads to more serious issues, including damage to the shaft. Timely cleaning is essential to prevent long-term harm. A small amount of abnormal wear from particles can equate to 2500 hours of normal wear.
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