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 Z axis
  • Radial adjusting screws
  • Lubricated for life design requires minimal maintenance
  • All components hardened and precision ground for highest accuracy and long life
  • Spindle speeds up to 6,000 rpm.
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Model

Collet Model

Through Capacity

Clamping Range

Draw Tube Stroke

Max Speed

Weight

Spindle Nose

Accuracy

N/A SK42BZI N/A 1.625 in42 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 6,000 rpm N/A 16.7 lb7.6 kg N/A 140mm N/A .0004 in0.010 mm
N/A SK42BZI N/A 1.625 in42 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 6,000 rpm N/A 16.7 lb7.6 kg N/A A2-5 N/A .0004 in0.010 mm
N/A SK42BZI N/A 1.625 in42 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 6,000 rpm N/A 16.7 lb7.6 kg N/A A2-6 N/A .0004 in0.010 mm
N/A SK65BZI N/A 2.560 in65 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 6,000 rpm N/A 25.8 lb11.7 kg N/A A2-5 N/A .0004 in0.010 mm
N/A SK65BZI N/A 2.560 in65 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 6,000 rpm N/A 27.6 lb12.5 kg N/A A2-6 N/A .0004 in0.010 mm
N/A SK65BZI N/A 2.560 in65 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 6,000 rpm N/A 34.0 lb15.4 kg N/A A2-8 N/A .0004 in0.010 mm
N/A SK80BZI N/A 3.250 in82.5 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 5,500 rpm N/A 39.1 lb17.7 kg N/A A2-6 N/A .0004 in0.010 mm
N/A SK80BZI N/A 3.250 in82.5 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 5,500 rpm N/A 40.9 lb18.5 kg N/A A2-8 N/A .0004 in0.010 mm
N/A SK100BZI N/A 3.937 in100 mm N/A +/- .040 in+/- 1 mm N/A 0.275 in7 mm N/A 5,000 rpm N/A 47.9 lb21.8 kg N/A A2-8 N/A .0008 in0.020 mm
N/A SK100BZI N/A 3.937 in100 mm N/A +/- .040 in+/- 1 mm N/A 0.275 in7 mm N/A 5,000 rpm N/A 47.9 lb21.8 kg N/A A2-11 N/A .0008 in0.020 mm
N/A SK120BZI N/A 4.725 in120 mm N/A +/- .040 in+/- 1 mm N/A 0.275 in7 mm N/A 4,000 rpm N/A 72.6 lb33 kg N/A A2-11 N/A .001 in0.025 mm
N/A SK140BZI N/A 5.512 in140 mm N/A +/- .040 in+/- 1 mm N/A 0.275 in7 mm N/A 3,500 rpm N/A 89.1 lb40.5 kg N/A A2-11 N/A .001 in0.025 mm
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