When is it necessary to replace the dynamic and static pressure spindles?

Abnormal rattling noise from the spindle during operation is usually caused by damage to the bearing, loosening of the bearing seat, and excessive clearance between the inner and outer rings of the bearing. If the abnormal noise is not handled in time, it will lead to further damage and increased instability of the spindle. At this time, it is necessary to replace the bearings and related parts of the spindle.

2. Deterioration of spindle machining accuracy

Spindle in the operation process, due to wear, thermal deformation and other reasons, will lead to spindle machining accuracy degradation, such as increased axis deviation, bearing radial clearance becomes larger, bearing housing surface wear. If the spindle is not repaired or replaced in time, it will lead to a decline in the machining accuracy of the machine tool and even prevent normal machining. At this time, it is necessary to replace the spindle and related components to restore the machining accuracy and stability of the machine tool.

3. Unsteady spindle operation

Unsteady spindle operation may be caused by improper spindle installation, damaged bearing inner or outer rings, uneven or loose bearing housing, etc. If not dealt with in time, it will lead to a decrease in machine tool machining quality and a shortening of bearing life. At this time, it is necessary to replace the spindle and related components to ensure the stability of the machine's operation and machining quality.

4. Severe spindle wear

After a long time of use, the spindle will have serious wear and tear, such as bearing surface wear, journal deformation, bearing radial clearance becomes larger. If the spindle is not replaced in time, it will lead to a decrease in the machining quality and stability of the machine tool. At this time, it is necessary to replace the spindle and related components to restore the machining accuracy and stability of the machine tool.

In short, the spindle as one of the important parts of the machine tool, its operating conditions on the machine tool machining quality and efficiency has a critical impact. Therefore, the spindle in the above situation, the need for timely replacement and repair.