In CNC Lathe Head Stock is only the main spindle without Gear Box.The spindle is driven by AC servo motor.Power transmitted to spindle from motor by V belt.
Difference Between CNC & Manual Lathe head stock.
| Manual Lathe | CNC Head Stock |
| It has gear Box. | It has only the Spindle. |
| Spindle mounted in gear box. | Spindle is supported by cylindrical roller with taper bore bearing. |
| The spindle is driven by gears of gear box.The gear box is driven by AC motor. | The spindle is driven by AC servo motor by V belt/multi rib belt. |
| Spindle Speed can be selected by lever i.e by changing the gears. | Speed can be changed by programming. |
| Speed can’t be measured. | Spindle speed can be measure by rotary incremental encoder. |
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