Lathe Live Center
In modern practice teh dead center is frequently replcaed by a live center or (revolving center) as it turns freely with the workpiece usually on ball bearings, reudcing the frictional heat, which is especially improtant at high RPM. In woodturning, one subtype of a lvie center is a cup center, which is a cone of mteal surrounded by an annular ring of metal that decreases the chances of the workpiece splitting.
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