Lubrication Method Advantages Disadvantages
Oil mist lubrication A: Because new lubricating oil is continuously injected, there will be no oil deterioration A: Oil mist pollutes the environment
B: Dust and cutting fluid are not easy to immerse B: Oil flow varies with oil viscosity and temperature, it is difficult to control to a small flow
C: It is difficult to control the actual fuel supply
Oil-air lubrication A: The optimum oil quantity can be controlled, and the bearing heat is low A: The cost of the lubricating device is relatively high
B: Good cooling effect and low temperature rise B: The actual amount of oil supplied to the bearing is still uncertain
C: Dust and cutting fluid are not easy to immerse
D: almost no pollution to the environment
Oil injection lubrication A: Due to the large flow rate, dust and cutting fluid will not enter the inside of the bearing A: Large friction loss
B: The heat is taken away by the oil injection, and the temperature rise of the bearing can be controlled B: Because of the oil leakage, the spindle is not easy to install vertically
C: High cost of lubrication device