Accuracy Adjustable Self Centering Chucks

AS TYPE CHUCKS ARE GENERALLY USED FOR 2ND. OPERATIONS & IN TOOL ROOM WHERE'S HIGHER ACCURACY IS REQUIRED. THESE CHUCKS ARE ADJUSTABLE UP TO 0.005 MM ARE REPEATING ACCURACY WITHIN 0.015 MM ON THE SAME DIAMETER.
* ADJUSTING PROCEDURE : HOLD THE WORKPIECE IN THIS CHICK IN NORMAL MANNER. SLACKEN THE ADJUSTING SCREWS WITH DUAL PURPOSE KEY PROVIDED. PLACE THE DIAL INDICATOR AGAINST WORKPIECE AND ROTATE THE CHUCK FILL LOWEST READING IS OBTAINED. THE ADJUSTING SCREWS NEAREST TO LOW READING IS THEN TIGHTENED UNTIL GAUGE NEEDLE MOVES HALF OF THE TOTAL CONCENTRICITY READING. THE SAME PROCEDURE IS REPEATED TILL THE DESIRED LEVEL OF CONCENTRICITY IS ACHIEVED. ALL ADJUSTING SCREWS THEN FINALLY BE CHECKED FOR FULL TIGHTNESS. NO FURTHER ADJUSTMENT IS REQUIRED FOR REPETITIVE MATCHING OF SIMILAR JOBS OF THE SAME DIAMETER WHICH IS POSSIBLE WITHIN 0.015 MM ACCURACY. ALWAYS USE NOMINATED PINION FOR REPETITIVE GRIPPING ACCURACY.
* LIMITATIONS : AS TYPE CHUCKS ARE SLIGHTLY UNBALANCE DUE TO ADJUSTMENT FEATURE AND MAY CAUSE SPINDLE VIBRATION AT HIGH SPEED.