**Detailed Analysis: Things to Pay Attention to When Bearings Are in Operation** Home > Bearing Knowledge > Detailed Analysis: Things to Pay Attention to When Bearings Are in Operation *728*90 created on 2018/5/16* var cpro_id = "u3440131";

Detailed Analysis: Things to Pay Attention to When Bearings Are in Operation

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*250*250 was created on 2017/12/25* var cpro_id = 'u3171089';

With the advancement of society and the widespread use of mechanization in production, bearings have become an essential component in various machines. Their applications are expanding continuously, as they are often used for localized transformations. Monitoring the condition of a machine during operation is becoming increasingly important. Bearings, being the most critical rotating parts, require special attention. Condition monitoring plays a key role in preventing unexpected failures. Early detection of bearing damage can help avoid costly downtime caused by mechanical failure. However, not all machines are equipped with advanced diagnostic tools. In such cases, operators or maintenance engineers must remain vigilant for any signs of abnormal behavior from the bearing. Here are some important points to consider: High temperatures are often a sign of abnormal bearing conditions. Excessive heat can also degrade the lubricant inside the bearing. If a bearing operates above 125°C for extended periods, its lifespan will be significantly reduced. Common causes of overheating include insufficient lubrication, contaminated lubricants, excessive load, bearing wear, lack of clearance, or oil seal issues. Therefore, continuous temperature monitoring is essential—whether measuring the bearing directly or other critical components. Any unusual temperature change may indicate a potential problem. Checking the bearing's lubrication and moisture levels is crucial. The oil seal should be free of wear, and it's best to visually inspect the bearing and oil seal when opening the housing. Ensure that the oil seals near the bearing are properly maintained to prevent foreign substances like water, chemicals, or gases from entering along the axis. Grease the retaining ring and labyrinth seals for maximum protection. If the oil seal shows signs of wear, replace it immediately. A worn oil seal can allow contaminants into the bearing or cause lubricant leakage. Additionally, check for oil leakage around the bearing housing, which may be due to loose joints, overfilled lubricant, or damaged seals. Monitor the lubricant’s color and consistency; darkening or contamination may indicate poor quality or excessive dirt. Listening is another effective method to detect irregularities. Using an electronic stethoscope, experienced operators can identify abnormal noises from the bearing. A well-functioning bearing typically produces a smooth, humming sound. Sharp, irregular noises may signal poor performance. These sounds could be caused by inadequate lubrication, incorrect clearance, or damage to the outer race. Dents on the bearing’s outer ring can lead to vibration and loud noises. Knocking damage from external sources may also create noise that varies with the bearing’s speed. Intermittent sounds might suggest damage to rolling elements. Pollutants inside the bearing can cause squeaking, while severe damage may result in loud, unpredictable noises.

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