The NRB 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-NRB 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 to drawing the workpiece against the part stop
  • Lubricated-for-life design requires minimal maintenance
  • All components hardened and precision ground for highest accuracy and long life.
Non-rotating dead length designs are quoted on request. CB120-NR & CB140-NR models are also quoted on request.
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Model

Collet Model

Through Capacity

Clamping Range

Piston Stroke

Max. Hydraulic Force

Max. Clamp Force

Weight

Accuracy

List Price

CB42-NRB N/A SK42BZI N/A 1.625 in42 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 580 psi4.0 MPa N/A 17,985 lbs80 kN N/A 18.6 lb8.5 kg N/A .0004 in0.010 mm QUOTE
CB65-NRB N/A SK65BZI N/A 2.560 in65 mm N/A +/- .020 in+/- 0.5 mm N/A 0.16 in4 mm N/A 580 psi4.0 MPa N/A 23,605 lbs105 kN N/A 27.5 lb12.5 kg N/A .0004 in0.010 mm QUOTE
CB100-NRB N/A SK100BZI N/A 3.937 in100 mm N/A +/- .040 in+/- 1 mm N/A 0.275 in7 mm N/A 530 psi3.7 MPa N/A 33,721 lbs150 kN N/A 54.6 lb24.8 kg N/A .0006 in0.015 mm QUOTE
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