In industrial production, the use of various mechanical equipment is essential. Therefore, in general, if the temperature of the self-aligning roller bearing is found to be too high or hot during the use of the machine, it is usually a malfunction of the machine. If it is not detected in a timely manner and correct treatment is not taken, it may result in twice the result with half the effort. In more serious cases, It may also shorten the service life of self-aligning roller bearings, increase maintenance costs, and even lead to the scrapping of self-aligning roller bearings, all of which are possible occurrences.

So, it is essential to timely and accurately identify the true cause of machine malfunctions and take appropriate measures to handle them in the operation and maintenance of equipment. Today, the editor will first analyze the cause of the most commonly encountered heating problem of self-aligning roller bearings in use.

1. Poor lubrication has a significant impact on the service life, friction, wear, vibration, etc. of self-aligning roller bearings. Good lubrication is a necessary condition to ensure the normal operation of self-aligning roller bearings. According to statistics, about 40% of the damage to self-aligning roller bearings is related to poor lubrication.

However, the factors that usually cause poor lubrication of self-aligning roller bearings are:

1) Insufficient lubricating oil

2) Lubricating oil pipe blocked by foreign objects, etc

3) There is an issue with the quality of the lubricating oil

4) Failure to add lubricating oil on time

5) Lubricating oil contains impurities

2. Wear of self-aligning roller bearings

As an important component, self-aligning roller bearings are used in various sizes of machinery. However, some machinery (such as crushers) have a high amount of dust in their working environment. When some fine dust enters the high-speed operation of the self-aligning roller bearing seat, it causes the lubricating oil or grease inside the bearing seat to deteriorate, resulting in poor lubrication and subsequent wear of the self-aligning roller bearing. The self-aligning roller bearing continues to operate in a worn state, but due to increased friction and heat, the temperature of the self-aligning roller bearing increases

3. Improper installation

Improper installation is another important reason for the heating of self-aligning roller bearings. Because the correct installation of self-aligning roller bearings has a direct impact on their lifespan and host accuracy, it is required that the centerline of the shaft and the hole of the self-aligning roller bearing must coincide during installation. If the installation of the self-aligning roller bearing is not correct, the accuracy is low, and the self-aligning roller bearing has deflection, torque will be generated during rotation, causing heating or wear of the self-aligning roller bearing. In addition, self-aligning roller bearings can also generate vibration, increase noise, and cause an increase in temperature rise.

4. Improper selection of self-aligning roller bearings

When selecting self-aligning roller bearings, attention should be paid to the maximum speed and load capacity of the bearing. It should not be used at excessive speed or load, as it will only shorten the service life of the self-aligning roller bearing and not be worth the loss.