MicroCentric Precision Workholding Solutions Quick Change Collet Chucks

MicroCentric Table of Contents Overview & Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Description of Chuck Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CB-NB Collet Chucks - Pull Back Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CB-ND Collet Chucks - Dead Length Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Collet System Overview Quick Change Change Collets in 15 Seconds • MicroCentric Collets are collapsed by a changing fixture for quick removal and insertion into the chuck High Clamping Force • Parallel clamping design generates higher clamping forces than traditional collet and three jaw chucks .0004" Accuracy • Runout of the workpiece (not only the tapered seat of the chuck) is guaranteed to be within .0004" (0,010mm) TIR after collet change 50% higher clamping force 600 Superior Rigidity • Shorter overall chuck length • Workpiece is machined closer to spindle face • High chuck rigidity improves cutting...

MicroCentric Quick Change Collet Chuck Models All components of MicroCentric Collet Chucks are made from hardened and precision ground alloy steel for highest accuracy and long term performance. Their modular design makes it possible to adapt MicroCentric chucks to all machine spindle and draw tube configurations. NB Series - Pull Back Design In the NB series chuck, the collet is coupled directly to the draw tube connector. As the draw tube is actuated, the collet is drawn into the tapered seat, efficiently translating draw tube force into maximum clamping force. ND Series - Dead Length Design...

CB-NB Collet Chucks - Pull Back Design In the CB-NB series collet chucks, the collet is coupled directly to the draw tube connector. As the draw tube is actuated, the collet is drawn into the tapered seat of the chuck body, efficiently translating draw tube force into maximum clamping force. CB-NB Features • Pull Back design maximizes the efficiency of the clamping system by concentrating all forces in the direction of the spindle for highest accuracy and greatest overall rigidity • Low profile OD and short overall length provides increased tool clearance and maximum utilization of the machine's...

Spindle Chuck Model Fig. Nose A_B_C_D_E_F G H CB-NB chucks with spindle adapters other than those listed above are quoted on request.

CB-ND Collet Chucks - Dead Length Design In the CB-ND series collet chuck, the collet is coupled to the chuck body and remains stationary as the tapered seat moves forward when the chuck is actuated. This design keeps the collet in a fixed Z axis position during clamping and does not create a pull back effect on the bar stock or workpiece. CB-ND Features • Dead Length design produces no pull back on the workpiece • Low profile OD and short overall length provides increased tool clearance and maximum utilization of the machine's Z axis • Radial adjusting screws • Lubricated-for-life design requires...

Spindle Chuck Model Fig. Nose A B C D E F

CB-NDR Collet Chucks - Pull to Close Dead Length Design for Servo Stop Bar Loaders The CB-NDR is a new patented Dead Length design collet chuck to be used with servo stop bar loaders. The NDR chuck is actuated as the draw tube is pulled into the machine spindle. The collet is coupled to the chuck body and remains stationary as the tapered seat moves forward during clamping. This feature keeps the collet in a fixed Z axis position, and since the draw tube is moving into the spindle, the bar remains positioned against the servo stop. CB-NDR Features • Pull to Close Dead Length design produces no...

Spindle Chuck Model Fig. Nose A B C D E F CB-NDR chucks with spindle adapters other than those listed above are quoted on request.

CB-NK Collet Chucks - Combination Design The CB-NK series collet chuck is a Pull Back design that offers the added flexibility of being able to mount part stops inside the chuck body for easy conversion from bar to chucking work. CB-NK Features • Pull Back design maximizes the efficiency of the clamping system by concentrating all forces in the direction of the spindle for highest accuracy and greatest overall rigidity • Low profile OD and short overall length provides increased tool clearance and maximum utilization of the machine's Z axis • Radial adjusting screws • Lubricated-for-life design...

Spindle Chuck Model Fig. Nose A_B_C_D E_F_G H CB-K chucks with spindle adapters other than those listed above are quoted on request.

CB-NS Collet Chucks - Sub Spindle Design The NS series is a reduced diameter Dead Length design for sub spindles. Similar to ND chucks, the collet is coupled directly to the chuck body and remains fixed as the chuck is actuated. NS chucks also include a provision for mounting stops and ejectors inside the chuck body. CB-NS Features • Small OD for maximum tool clearance on sub spindles. • Dead Length design produces no pull back on the workpiece. • Lubricated-for-life design requires minimal maintenance. • All components hardened and precision ground for highest accuracy and long life. • Stop...

Spindle Chuck Model Fig. Nose A_B_C_D_E_F G_H CB-NS chucks with spindle adapters other than those listed above are quoted on request. * WHEN THE CLAMEiNG LENGTH is UNDER .500" (12.7mm), a reduced nose collet must be used.

'.'MicroCentrio CB-NR Collet Chucks - Stationary Design The NR series is a pneumatic or hydraulically actuated self-contained Pull Back design for stationary applications. The collet is coupled to the built-in piston and is drawn into the tapered seat as the chuck is actuated. Part stops and ejectors can be mounted inside the chuck body. CB-NR Features • Self-contained design with built-in cylinder can be hydraulic or pneumatically operated • Pull Back design maximizes the efficiency of the clamping system by concentrating the chucking force in the direction of the machine table, in addition...