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In the CB-NB series collet chucks, the collet is coupled directly to the draw tube connector. When 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 Z axis
  • Radial adjusting screws to true-up the chuck assembly within .0002” (0.005mm)
  • Lubricated for life design requires minimal maintenance
  • All components hardened and precision ground for highest accuracy and long life
Unit of Measure

Specifications

Collet Model

 N/A SK120BZI

Max. Clamping Diameter

 N/A 4.725 in120 mm

Min. Clamping Diameter

 N/A 1.000 in25 mm

Spindle Nose

 N/A A2-8

Accuracy

 N/A .001 in0.025 mm

Clamping Range

 N/A +/- .040 in+/- 1 mm

Linear Chuck Stroke

 N/A 0.315 in8 mm

Max. Clamp Force

 N/A 35,969 lbs160 kN

Max. Speed

 N/A 4,000 rpm

Max. Draw Tube Thread

 N/A M115x2

Weight

 N/A 88.28 lb40.04 kg

A Dimension

 N/A 5.15 in130.81 mm

Item No.

 N/A 15 120 200

Standard Equipment

N/A CB-NB collet chucks include a spindle adapter plate and a blank draw tube connector. Threaded draw tube connectors for specific machine configurations are furnished at no additional charge if draw tube dimensions are provided with your purchase order.