The core issue in lubrication technology is to address the lubrication of friction pairs, or what we commonly refer to as lubrication points. For those involved in the application of lubrication technology, the focus should be on the lubrication points. Regardless of the lubrication method you choose—whether it's dry oil, thin oil, oil mist, or gas oil lubrication—the goal is to maintain the lubrication points in an optimal lubricated state.

So, what kind of lubrication does a lubrication point actually require? Is it better to add more oil? The answer is no.

Lubrication points, or the friction pairs operating under full-film lubrication, represent an ideal condition. In this full-film lubrication state, there is a lubricant between the friction surfaces, forming a complete lubricating film that completely isolates the two surfaces. As the friction pairs move, the friction occurs internally between the molecules within the lubricating film, rather than as direct external contact between the friction surfaces.

The lubricant required for lubrication points should reach the bearings in a slow, even, and微量 oil flow. If the lubricant needed at the lubrication points can be supplied in a continuous, fine stream, the lubrication effect is considered ideal.

For instance, a bearing requires 1ml of lubricant per hour. Is it better to add 1ml at a time, or to distribute that 1ml over the course of an hour? The correct answer is the latter. If we can ensure that the lubrication point receives only 0.1ml of oil during each lubrication cycle, then 1ml of oil can be supplied 10 times in an hour, with refueling every 6 minutes. This achieves a highly satisfactory result, and it represents a proper lubrication method.

Rare oil lubrication is indeed an effective lubrication method. With the advancement of lubrication technology, rare oil lubrication has evolved from the initial high-flow method to a more sophisticated micro-lubrication approach, such as oil mist lubrication, which represents a micro-lubrication technique. Its introduction has propelled the development of rare oil lubrication to a new level. Although oil mist lubrication has taken a significant step in the right direction for lubrication, its application is limited by various constraints and poses serious environmental pollution and health hazards. Consequently, its application prospects are becoming increasingly dim. Replacing it is an even more micro-lubrication method that does not pollute the environment—oil-gas lubrication.

Oil and gas lubrication revolutionizes traditional lubrication methods with a novel lubrication concept. It continuously injects minute oil droplets into the lubrication points, enabling equal distribution of lubricant over time and adapting to various harsh operating conditions—a feat unattainable by other lubrication methods.