in useElectric spindleAt that time, many people found it difficult to determine when to replace the bearings of the electric spindle. If the electric spindle is overloaded for a long time, foreign objects will enter the bearing and the cooling will be poor. Check if the service life of the bearing has expired. Replace and apply lubricating grease. Check if the front nut is loose and if there are any foreign objects on the spindle. When the above-mentioned problems occur with the electric spindle, we need to check the specific problems of the electric spindle and then determine whether to replace the electric spindle bearings based on the specific situation.

When the following specific situations occur with the electric spindle bearing, it is time to replace the electric spindle bearing.

1. Any one of the inner ring, outer ring, rolling element, or cage has cracks or gaps. Either the ring or the rolling element breaks.

2. The bearing raceway, retaining edge, and rolling elements have obvious scratches. The retainer is visibly worn or the rivets are loose.

3. The raceway and rolling elements of the electric spindle bearing have rust or scratches. There are serious indentations or scratches on the surface of the raceway and rolling elements.

4. There is significant creep on the inner diameter surface of the inner ring or the outer diameter surface of the outer ring. Overheating causes severe discoloration.

5. The sealing ring or dust cover of the electric spindle is severely damaged.

If any of the above situations are found during the inspection of the electric spindle bearings, the electric spindle bearings should be replaced. Do not replace after complete damage, otherwise it will accelerate the damage speed of other components.