Bearing as a vital part of mechanical equipment, its performance directly affects the operating efficiency, stability and life of the equipment. In the bearing work, the lubrication condition is one of the most important factors, which directly affects the friction, wear and fatigue properties of bearing materials. Therefore, the in-depth study of the influence of lubrication conditions on bearing material properties is of great significance for improving the working efficiency and extending the service life of bearings.

At present, the research on the influence of lubrication conditions on bearing material properties is relatively limited. Previous studies mainly focused on the selection and performance evaluation of lubricating oil or grease, but the specific mechanism of different lubrication conditions (such as dry lubrication, lubricating oil lubrication, grease lubrication, etc.) on the bearing material properties has not been fully explored. Therefore, the purpose of this study is to systematically study the friction characteristics, wear behavior and fatigue life of bearing materials under different lubrication conditions, in order to provide a scientific basis for optimizing bearing design and lubrication scheme.

Through in-depth study of the influence of lubrication conditions on the performance of bearing materials, we can provide more reliable data support for engineering practice, promote the performance optimization of bearing materials and the improvement of bearing working conditions, so as to improve the reliability and service life of mechanical equipment, reduce maintenance costs, and promote the sustainable development of industrial production.

The influence of lubrication conditions on bearing material properties is an important research topic. Lubrication conditions directly affect the friction, wear and life of bearings. The following are several aspects of the influence of lubrication conditions on the performance of bearing materials:

Friction characteristics: Lubrication conditions have a direct impact on the friction characteristics of bearings. Suitable lubrication conditions can reduce the friction coefficient, reduce energy loss, and improve the working efficiency of the bearing. Proper lubrication can also reduce friction and wear and extend the service life of bearings.

Wear characteristics: Lubrication conditions also have a significant impact on the wear characteristics of bearings. Good lubrication can reduce the wear rate, reduce the wear degree, and extend the service life of the bearing. Proper lubrication can also reduce the generation of wear particles and reduce the harm of wear to the system.

Fatigue characteristics: Lubrication conditions will also affect the fatigue life of the bearing. Proper lubrication can reduce the expansion rate of fatigue cracks, delay the occurrence of fatigue failure, and improve the reliability and durability of bearings.

Temperature characteristics: Lubrication conditions will affect the operating temperature of the bearing. Suitable lubrication can reduce the heat generated by friction, reduce the working temperature rise of the bearing, and keep the bearing in the appropriate working temperature range, which is conducive to the stability of the bearing material properties.

Corrosion characteristics: Some lubrication conditions may have a corrosive effect on the bearing material, resulting in a decline in material performance. Therefore, the corrosion effect on the bearing material needs to be considered when selecting the lubrication conditions.

In general, suitable lubrication conditions can improve the performance of bearings, extend the service life, reduce maintenance costs, and improve the reliability of the system. Therefore, in the bearing design and selection of lubrication conditions, it is necessary to comprehensively consider the characteristics of bearing materials and working conditions to obtain the best performance.

Lubrication can be divided into many types, mainly according to the form of lubrication medium and lubrication method to classify. Here are some common types of lubrication:

Dry lubrication: Under dry lubrication conditions, the lubricating medium is absent or very little. It is usually used under high temperature, high vacuum or high speed conditions. For example, in the space environment, dry lubrication technology is often used due to the lack of liquid medium.

Grease lubrication: Grease is a semi-solid lubricant, usually composed of a base oil, thickeners and additives. Greases are suitable for applications where liquid lubricants cannot be used, such as lubrication under high load, low speed, high temperature or polluted environment.

Lubricating oil: Lubricating oil is a liquid lubricating medium, usually composed of base oil and additives. The lubricating oil is suitable for high-speed, low load, high temperature or clean environment lubrication.

Solid lubrication: Solid lubrication is achieved by applying a solid lubricant to the friction surface to form a solid film. Common solid lubricants include graphite, molybdenum disulfide and so on. Solid lubrication is suitable for high temperature, high vacuum, no grease or oil applications.

Edge oil lubrication: In the condition of edge oil lubrication, the lubricant is supplied to the friction surface through the oil groove or hole in the bearing or shaft. Edge oil lubrication is suitable for high speed, high temperature or sealing applications.

Oil and gas lubrication: Oil and gas lubrication refers to the suspension of lubricant particles in the gas, through the air flow to the friction surface to achieve lubrication. Oil and gas lubrication is suitable for high-speed, high temperature or need to clean the environment.

By studying the influence of lubrication conditions on bearing material properties, we have drawn some important conclusions:

Friction and wear: Under different lubrication conditions, the friction and wear characteristics of bearings will change significantly. Good lubrication can effectively reduce friction, reduce wear rate, extend bearing life.

Temperature and thermal stability: Lubrication conditions will also affect the operating temperature and thermal stability of the bearing. Proper lubrication can effectively reduce the working temperature of the bearing, improve thermal stability, and reduce material fatigue and deformation.

Corrosion and delamination: The wrong lubrication choice can lead to corrosion and delamination of bearing materials, which can affect bearing performance and life. Therefore, it is important to choose the lubrication method suitable for the working conditions.

In summary, the appropriate lubrication conditions have an important impact on the performance of bearing materials, and are essential to ensure the normal operation of bearings and extend their service life. In future studies, the changes in the microstructure of bearing materials under different lubrication conditions, as well as the formation and stability of lubrication film can be further explored to deeply understand the mechanism of the influence of lubrication conditions on bearing performance and provide more in-depth guidance for bearing design and application.