Products Catalog

The NRB series is a hydraulically actuated self-contained Pull Back design for non-rotating applications. The collet is coupled to the built-in piston and is drawn into the tapered seat when the chuck is actuated. Part stops 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.

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Unit of Measure

Items	CB42-NRB CB-NRB Collet Chucks - Stationary Design	CB65-NRB CB-NRB Collet Chucks - Stationary Design	CB100-NRB CB-NRB Collet Chucks - Stationary Design	CB80-NRB CB-NRB Collet Chucks - Stationary Design
Collet Model	N/A SK42BZI	N/A SK65BZI	N/A SK100BZI	N/A SK80BZI
Max. Clamping Diameter	N/A 1.625 in42 mm	N/A 2.625 in66 mm	N/A 4.000 in100 mm	N/A 3.250 in82.5 mm
Min. Clamping Diameter	N/A 0.156 in4 mm	N/A 0.187 in5 mm	N/A 1.000 in25 mm	N/A 0.500 in12 mm
Accuracy	N/A .0004 in0.010 mm	N/A .0004 in0.010 mm	N/A .0006 in0.015 mm	N/A .0004 in0.010 mm
Clamping Range	N/A +/- .020 in+/- 0.5 mm	N/A +/- .020 in+/- 0.5 mm	N/A +/- .040 in+/- 1 mm	N/A +/- .020 in+/- 0.5 mm
Piston Stroke	N/A 0.16 in4 mm	N/A 0.16 in4 mm	N/A 0.315 in8 mm	N/A 0.16 in4 mm
Max. Hydraulic Force	N/A 420 psi2.9 MPa	N/A 580 psi4.0 MPa	N/A 530 psi3.7 MPa	N/A 760 psi5.2 MPa
Max. Clamp Force	N/A 17,985 lbs80 kN	N/A 23,605 lbs105 kN	N/A 33,721 lbs150 kN	N/A 25,853 lbs115 kN
Weight	N/A 18.6 lb8.5 kg	N/A 27.5 lb12.5 kg	N/A 54.6 lb24.8 kg	N/A 40.69 lb18.46 kg
A Dimension	N/A
B Dimension	N/A
C Dimension	N/A
D Dimension	N/A
E Dimension	N/A
F Dimension	N/A
G Dimension	N/A
H Dimension	N/A
J Dimension	N/A
K Dimension	N/A