Mixed Lubrication is a lubrication state in which dry friction, boundary lubrication or fluid lubrication exists between two solid friction surfaces at the same time.

Solid Lubrication is the lubricating state when two solid surfaces in relative motion are separated by powdered or thin film solid lubricants

Boundary Lubrication (Boundary Lubrication) The friction and wear characteristics between two solid surfaces in relative motion depend on the characteristics of the two surfaces and the lubrication state of the interaction between the lubricant and the surface and the properties of the generated boundary film

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

Hydrodynamic lubrication (Hydrodynamic Lubrication) relies on the beginning of the sliding surface of the kinematic pair to form a layer of fluid film with sufficient pressure during relative movement to separate the two surfaces. hydrodynamic lubrication

Hydrostatic Lubrication relies on an external oil supply system to supply lubricant with a certain pressure to the bearing, and a lubricating oil film with sufficient pressure is formed in the bearing oil cavity to separate the two surfaces. Also known as hydrostatic lubrication.

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

Gas Lubrication is the lubrication in which the two surfaces of relative motion are separated by a gas lubricant.

Magneto-by-drodynamic Lubrication (MHD Lubrication) The effective force is hydrodynamic lubrication caused by electromagnetic action. Also known as magnetohydrodynamic lubrication.

Lubrication method (Method of lubrication) The method of supplying lubrication to the friction surface

Continuous Lubrication is a lubrication method in which the lubricant is continuously fed into the friction surface

Periodic Lubrication is a lubrication method in which the lubricant is periodically fed into the friction surface

Criculating Lubrication is a lubrication method in which the lubricant is sent to the friction point for lubrication and then returned to the oil tank for recycling.

Total loss lubrication (Total Loss Lubrication) is a lubrication method in which the lubricant is sent to the friction point for lubrication and is not returned to the oil tank for circulation. Also known as One-way Lubrication (Once-through Lubrication)

Pressure Lubrication is a lubrication method in which an oil pump device is used to supply a lubricant with a certain pressure to the friction point. Also known as Force Feed Lubrication

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

Wick Lubrication is a lubrication method that uses the siphon principle and capillary action to send lubricating oil to the friction point with the help of the wick.

Oil-ring Lubrication is a lubrication method in which a ring with a diameter larger than the journal rotates with the shaft, and the lubricating oil in the oil reservoir below is brought to the journal.

Pad Lubrication is a lubrication method in which an oil pad made of felt or similar material supplies lubricant to the friction surface

Dip-feed Lubrication is oil bath lubrication

Splash Lubrication is a method of splashing lubricant on the friction surface of the moving pair to maintain lubrication

Drop-feed Lubrication is a method of intermittently and regularly dripping lubricating oil onto the friction surface of the moving pair to maintain lubrication

Flood Lubrication is a lubrication method in which low-pressure lubricating oil is continuously sent to the friction surface and then overflows. Also sometimes used to reflect oil bath lubrication

Chain Oiling uses the oil chain to rotate with the shaft, and brings the lubricating oil from the oil reservoir below to the shaft journal.

Oil tanker lubrication (Fixed-Collar Oiling) uses the oil tanker fixed on the shaft to rotate with the shaft, and brings the lubricating oil in the oil reservoir to the lubrication method on the journal