Lubrication of ceramic bearings

The lubrication methods

In the use of ceramic bearings, if the use time is long, then the flexibility is not very good, then it is necessary to use lubricating oil, which can reduce bearing wear, reduce bearing scrap rate and ensure the normal service life of bearings. Its lubrication is divided into grease lubrication and oil lubrication. If only lubrication is considered, the lubricity of oil lubrication is dominant. But grease lubrication has the advantage of simplifying the structure around ceramic bearings. In order to make ceramic bearings play a good role, it is necessary to choose suitable lubrication methods for use conditions and purposes.

 

lubrication

Simplified ceramic bearing surrounding structure;

 

Heat dissipation and vibration reduction;

 

Rust, corrosion, dust and sealing;

 

Reduce friction and wear between metal surfaces in relative motion;

 

Reduce the contact stress and prolong the contact fatigue life of ceramic bearing;

 

Take away the wear particles or pollutants produced in the operation of ceramic bearings;

 

Selection of grease

Grease has a very important influence on the operation and life of ceramic bearings. The general principles of grease selection are briefly introduced here. In the selection, it should be noted that the performance of different types and the same kind of different grades of grease varies greatly, and the allowable rotation limit is different. The performance of grease is mainly determined by the base oil. The base oil with low viscosity is generally suitable for low temperature and high speed. High viscosity is suitable for high temperature, high load. The thickener is also related to the lubrication performance, the water resistance of the thickener determines the water resistance of the grease. In principle, different brands of grease can not be mixed, and even the same thickening agent of grease, because of different additives will bring adverse effects on each other.

 

Extend service life by lubrication

The commonly used ceramic bearing life includes fatigue life, wear life, fault life and service life. In the process of using ceramic bearings, due to their own quality and external conditions, their bearing capacity, rotation accuracy and wear resistance will change. When the performance index of ceramic bearing is lower than the use requirements and can not work normally, there will be failure or even failure.

 

Lubrication has an important influence on the fatigue life and friction, wear, temperature rise and vibration of rolling ceramic bearings. Without normal lubrication, ceramic bearings cannot work. The ANALYSIS OF THE causes OF CERAMIC BEARING damage shows that about 40% of ceramic bearing damage is related to poor lubrication, so the good lubrication of ceramic bearing is an effective measure to reduce the friction and wear of ceramic bearing.

 

The fatigue life of ceramic bearings is usually based on the normal design, manufacturing, maintenance and operation conditions of ceramic bearings, including normal lubrication conditions. At ordinary times, we need to know more about ceramic bearings, pay more attention to the use of them, and do more maintenance and maintenance work on ceramic bearings, oil more machinery and equipment, and be sure to check ceramic bearings regularly.

 

Maintenance of ceramic bearings

In order to maintain the original function of ceramic bearings in good condition for as long as possible, it is best to check and maintain them regularly. Including monitoring operation status, replenishing or replacing lubricants, periodic disassembly.

 

In addition, the cleaning of ceramic bearings is also a regular thing to do. This part is also the main working procedure in the maintenance process of ceramic bearings. When necessary, it is necessary to test the ceramic bearings, find out the extent of the pollution of the grease for iron, copper, dust and so on, and comprehensively check the above to determine whether the grease is competent for the wheel working condition, and put forward suggestions on performance improvement, replacement of oil varieties or improvement of ceramic bearings and oil seal structure