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 Draw Tube Force

Max. Clamp Force

Max Speed

Weight

Spindle Nose

N/A SK42BZI N/A 1.625 in42 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 7,868 lbf3569.02 kgf N/A 17,985 lbf8157.76 kgf N/A 6,000 rpm N/A 16.7 lb7.6 kg N/A 140mm
N/A SK42BZI N/A 1.625 in42 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 7,868 lbf3569.02 kgf N/A 17,985 lbf8157.76 kgf N/A 6,000 rpm N/A 16.7 lb7.6 kg N/A A2-5
N/A SK42BZI N/A 1.625 in42 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 7,868 lbf3569.02 kgf N/A 17,985 lbf8157.76 kgf N/A 6,000 rpm N/A 16.7 lb7.6 kg N/A A2-6
N/A SK65BZI N/A 2.625 in66 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 10,116 lbf4588.74 kgf N/A 23,605 lbf10707.06 kgf N/A 6,000 rpm N/A 25.8 lb11.7 kg N/A A2-5
N/A SK65BZI N/A 2.625 in66 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 10,116 lbf4588.74 kgf N/A 23,605 lbf10707.06 kgf N/A 6,000 rpm N/A 27.6 lb12.5 kg N/A A2-6
N/A SK65BZI N/A 2.625 in66 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 10,095 lbf4,590 kgf N/A 18,170 lbf8,260 kgf N/A 6,000 rpm N/A 34.0 lb15.4 kg N/A A2-8
N/A SK80BZI N/A 3.25 in82.5 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 11,240 lbf5098.6 kgf N/A 25,853 lbf11726.78 kgf N/A 5.000 rpm N/A 39.1 lb17.7 kg N/A A2-6
N/A SK80BZI N/A 3.25 in82.5 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 11,240 lbf5098.6 kgf N/A 25,853 lbf11726.78 kgf N/A 5.000 rpm N/A 40.9 lb18.5 kg N/A A2-8
N/A SK100BZI N/A 3.937 in100 mm N/A +/- .040 in+/- 1 mm N/A 0.275 in7 mm N/A 14,612 lbs lbf65 kN kgf N/A 33,721 lbs lbf150 kN kgf N/A 4,500 rpm N/A 47.9 lb21.8 kg N/A A2-8
N/A SK100BZI N/A 3.937 in100 mm N/A +/- .040 in+/- 1 mm N/A 0.275 in7 mm N/A 14,612 lbf6628.18 kgf N/A 33,721 lbf15295.8 kgf N/A 4,500 rpm N/A 47.9 lb21.8 kg N/A A2-11
N/A SK120BZI N/A 4.72 in120 mm N/A +/- .040 in+/- 1 mm N/A 0.275 in7 mm N/A 15,736 lbf7240.012 kgf N/A 35,969 lbf16315.52 kgf N/A 4,000 rpm N/A 72.6 lb33 kg N/A A2-11
N/A SK140BZI N/A 5.51 in140 mm N/A +/- .040 in+/- 1 mm N/A 0.275 in7 mm N/A 16,860 lbf7647.9 kgf N/A 38,218 lbf17335.24 kgf N/A 4,000 rpm N/A 89.1 lb40.5 kg N/A A2-11
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