Mixed Lubrication (Mixed Lubrication) There are dry friction between two solid friction surfaces, boundary lubrication or fluid lubrication in a mixed state of lubrication

Solid Lubrication (Solid Lubrication) The relative lubrication between two solid surfaces separated by powder or film solid lubricant

Boundary Lubrication The friction and wear characteristics between two solid surfaces that move in relative motion depend on the characteristics of the two surfaces and the interaction between the lubricant and the surface and the lubrication state of the nature of the resulting boundary film

Extreme-pressure lubrication (Extreme-pressure Lubrication) The friction and wear characteristics between two solid surfaces in relative motion depend on the lubrication state of the lubricant under heavy load and chemical reaction with the friction surface

Hydrodynamic Lubrication (Hydrodynamic Lubrication) relies on the beginning of the sliding surface of the motion pair to form a layer of fluid film with sufficient pressure during relative movement, thereby separating the two surfaces from the lubrication state. Hydrodynamic lubrication

Hydrostatic Lubrication (Hydrostatic Lubrication) relies on an external oil supply system to supply lubricant with a certain pressure to the support, forming a lubricating oil film with sufficient pressure in the support oil chamber to separate the two surfaces in a lubricated state. Also known as hydrostatic lubrication.

Elasto-hydrodynamic Lubrication (Elasto-hydrodynamic Lubrication) The friction between the two surfaces of the relative motion and the thickness of the fluid lubricant film depend on the surface elastic deformation and the lubrication state of the rheological properties of the lubricant in the surface contact area. Also known as elastic hydrostatic lubrication.

Gas Lubrication (Gas Lubrication) Lubrication of two surfaces separated by a gas lubricant in relative motion.

Magnetic fluid dynamic pressure lubrication [Magneto-by-drodynamic Lubrication (MHD Lubrication)] The effective force is fluid dynamic pressure lubrication caused by electromagnetic action. Also known as magnetohydrodynamic lubrication.

Lubrication method (Method of lubrication) to provide lubrication to the friction surface

Continuous Lubrication (Continuous Lubrication) Lubricant is continuously fed into the friction surface

Intermittent lubrication (Periodical Lubrication) Lubricating method that the lubricant is periodically fed into the friction surface

Circulating lubrication (Criculating Lubrication) Lubricant is sent to the friction point for lubrication and then returned to the tank for recirculation

Total Loss Lubrication (Total Loss Lubrication) lubricant is sent to the friction point for lubrication and will not return to the oil tank for circulation. Also known as one-way lubrication (Once-through Lubrication)

Pressure lubrication (Pressure Lubrication) is a lubrication method in which an oil pump device supplies lubricant with a certain pressure to friction points. Also known as Forced Lubrication (Force Feed Lubrication)

Oil Lubrication (Bath Lubrication) The lubrication method in which part or all of the friction surface is immersed in the lubricating oil pool

Wick Lubrication (Wick Lubrication) uses the principle of siphon and capillary action to lubricate the lubricant to the friction point with the help of the oil rope

Oil-ring lubrication (Oil-ring Lubrication) is a lubrication method that uses a ring with a diameter larger than the journal to rotate with the shaft and bring the lubricant in the oil reservoir below to the journal

Pad Lubrication (Pad Lubrication) Lubricating method of oil pad made of felt or similar material to the friction surface

Dip-feed Lubrication (oil bath lubrication)

Splash Lubrication Splashes lubricant onto the friction surface of the moving pair to maintain lubrication

Drop-feed Lubrication intermittently and regularly drops lubricating oil onto the friction surface of the moving pair to maintain lubrication

Overflow lubrication (Flood Lubrication) is a lubrication method that continuously sends low-pressure lubricating oil to the friction surface and then overflows. Sometimes used to reflect oil bath lubrication

Chain oiling (Chain Oiling) uses the oil chain to rotate with the shaft to bring the lubricating oil in the oil reservoir below to the journal.

Fixed-Collar Oiling uses the oil wheel fixed on the shaft to rotate with the shaft to bring the lubricating oil in the oil reservoir to the journal.