Bearing

1. Paired bearings must be installed in pairs according to the paired products, and cannot be assembled in any way;

 2. Before installation, check the dimensional accuracy and shape position tolerance of the shaft and bearing seat matched with the bearing to meet the requirements of the machine tool drawings and clean these surfaces;

 3. Check if the distance between the sides of the bearing seat cover is less than the total width of the bearing set. If this is not the case, there will be axial play in the main shaft;

4. When the bearing is heated on the induction heater or the heating plate, the temperature is 20~30°C higher than the ambient temperature;

5. Ensure that the paired bearings are oriented correctly. This is a paired bearing. Be sure to check the mark on the outer diameter of the outer ring of the bearing.

6. Adjust the high point on the inner and outer rings of the bearing so that the marks on the high points of the inner and outer rings are in the same position, ensuring that the load is distributed optimally between the bearings;

7. Before the bearing is heated, the lubricating grease should be added to the bearing to meet the performance of the spindle bearing. Generally, it can be 1/3~2/3 of the bearing space. No need to add more, it will cause heat; use a reasonable method to add grease. , so that the grease can be evenly distributed around the rolling elements of the bearing;

8. The bearing is cleaned of the anti-rust oil on the bearing with clean utensils and kerosene before adding the grease, and the bearing is dried to ensure the lubrication effect;

9. Use a torque wrench or other tool to lock the bearing according to the value of the medium preload.
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