The bearings of the gypsum powder machine bear all the load of the machine, so good lubrication has a great relationship with the bearing life. It directly affects the service life and operating rate of the machine. Therefore, it is required that the injected lubricating oil must be clean and well sealed. The main oil injection points of this machine include (1) rotating bearings, (2) rolling bearings, (3) all gears, (4) movable bearings, and sliding surfaces