Exceeding the maximum permissible spindle speed on a CNC lathe can lead to several serious consequences. First, it can cause premature bearing failure. Spindle bearings are designed to operate within a specific speed range. Exceeding this range generates excessive heat due to increased friction, leading to accelerated wear and eventual failure of the bearings. This can result in costly repairs and machine downtime. Second, it can cause workpiece instability and potential ejection. At high speeds, the centrifugal for....
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