Routine maintenance of carrier roller bearings

Bearing Consultation: Some Knowledge of Bearing Heating Defects Bearing is a fixed component in machinery; Is the main body of machinery; Its function is basically to adhere to the central direction of the shaft; And components that control movement. Bearings play an irrelevant and grand role in any machine; Without imported bearings, the machine cannot operate.

The carrier roller bearing is the most important member of the carrier roller accessory. The quality of the bearing determines whether the idler operation is normal, so we need time to understand the condition of the idler bearing. Monitor bearing lubrication. According to the analysis of the causes of idler bearing damage, about 40% of the bearing damage is related to poor lubrication.

If the oil is changed too little, the bearing will fail in advance; If the oil is changed too much, the bearing of the carrier roller accessory may get into trouble or damage the power coil and coil for a long time, which has not been well addressed. Therefore, it is necessary to set a time scale to avoid excessive lubrication or prolonged non lubrication.

Monitor the bearing temperature. Generally, it can be estimated from the temperature outside the bearing. If the temperature of the bearing outer ring can be directly measured using an oil hole, it is more suitable. Generally speaking, the bearing temperature gradually increases with the operation and reaches a stable state after 1-2 hours. The normal temperature of bearings varies depending on the heat capacity, heat dissipation, rotational speed, and load of the machine. If the lubrication and device are not suitable, the bearing temperature will rise sharply and abnormal high temperatures will occur. At this point, it is necessary to pause the operation and adopt the necessary cooling methods.

Using a thermal sensor, the operating temperature of the bearing can be monitored at any time, and the heavy-duty bearing pedestal automatically gives an alarm when the temperature exceeds the specified value. Monitor the vibration of the roller bearings. Bearing vibration is very sensitive to damage to idler bearings, such as peeling, indentation, corrosion, cracks, wear, etc. Will be reflected in the bearing vibration measurement.

The common repair types of SKF bearings are analyzed. What are some knowledge about the heating disadvantages of idler bearings? The general types of bearing repair are as follows.

Defect repair: When there is a defect in the bearing; Stop inspection and repair. Timely repair: ensure the normal operation of the host machine according to the requirements of the host machine and the design theory and application experience of the bearings; Set the repair cycle; Repair on time. What is the knowledge of roller bearing heating defects? Early warning and repair: using pre emptive SKF bearing defect diagnosis techniques; Monitor the use of bearings in real time; Provide advance notice before bearing defects occur; Repair.

The bearing is in operation; There must be sound, temperature, and vibration. Therefore, protect the bearings in operation; Abnormal changes in bearings can be detected by listening, touching, observing, and using bearing defect diagnostic instruments; Judge whether the bearing operates normally based on the change.

Therefore, select a special bearing vibration measuring device (frequency analyzer, etc.) to measure the magnitude of the vibration, and then determine whether the lottery will be damaged based on the preset specifications. With the development of family planning households, the manufacturing process of carrier rollers will become more and more perfect, but the importance of carrier roller accessories is often forgotten, especially the daily maintenance of carrier roller bearings. We strengthen our daily monitoring work to prevent accidents before they occur.