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Center
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Ç¥ÁØÇü center
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A live center or revolving center is constructed so that the 60 ¡Æ center runs in its own bearings and is used
at the non driven or tailstock end of a machine.[1] It allows higher turning speeds without the need for separate
lubrication, and also greater clamping pressures. CNC lathes use this type of center almost exclusively and
they may be used for general machining operations as well.
A pipe center has a larger diameter at the 60 ¡Æ taper end. This allows the center to be used in the bore of a pipe (or similar workpiece). While a pipe center ensures the workpiece remains concentric, its main advatage is that it supports the workpiece securely. Thin walled material such as pipes easily collapse if excessive pressures are used at the chuck end,
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