During the operation of the engraving machine, the spindle bearing part will make noise. Bearings of different brands have more or less noise. This is unavoidable. However, there are some special circumstances that cause noise from the spindle bearing of the engraving machine. Investigate the cause and solve it reasonably. So what are the reasons for the noise of the engraving machine spindle bearing? The editor summarizes a few points for you: 1. The main shaft bearing of the engraving machine sometimes makes noise because the bearing is not installed properly, the bearing cover is not covered correctly, or the engraving machine is caused by wear of the bearing cover during long-term operation. Spindle bearing is making noise. 2. The problem of bearing lubricating oil; When the bearing lubricating oil is insufficiently lubricated or the engraving machine leaks oil, the quality of the lubricating oil is not good, or the running time of the lubricating oil is too long, the main shaft bearing of the engraving machine may be too noisy. 3. Bearing damage or wear problem; When the bearing is used for too long or improperly used, the cage of the bearing may be damaged, the inner and outer rings of the bearing may be worn, and the balls will fall out, which will lead to excessive bearing noise. How should we prevent the excessive noise of the spindle bearing of the engraving machine caused by some abnormal reasons? 1. When selecting a cage, choose a cage made of aluminum alloy, copper alloy, etc., which is not easy to be damaged. The inner and outer casings of the bearing cannot be mixed with those of other manufacturers, but can only be used from the same manufacturer; 2. Regularly check the bearing oil level. Regularly check the bearing In use, if the bearing wear is serious, it should be replaced in time, and the bearing oil should be checked regularly to select high-quality bearing oil and refill.