MicroCentric Corp.
25 South Terminal Drive
Plainview, NY 11803
Phone:516.349.7220 • Fax:516.349.9354
E-mail: sales@microcentric.com • Web site: www.microcentric.com
All Categories > Quick Change Collet Chucks > Quick Change Chucks > CB-NB Collet Chucks - Pull Back Design > Model CB120-NB/A15  


Model CB120-NB/A15, CB-NB Collet Chucks - Pull Back Design

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





Specifications  · Standard Equipment

Specifications

Collet Model
SK120BZI

Max. Clamping Diameter
4.725 in
120 mm

Min. Clamping Diameter
1.000 in
25 mm

Spindle Nose
A2-15

Accuracy
.001 in
0.025 mm

Clamping Range
+/- .040 in
+/- 1 mm

Linear Chuck Stroke
0.315 in
8 mm

Max. Clamp Force
35,969 lbs
160 kN

Max. Speed
4,000 rpm

Max. Draw Tube Thread
M150x2

Weight
134.73 lb
61.1 kg

A Dimension
6.65 in
168.91 mm

B Dimension
2.65 in
67.31 mm

C Dimension
14.95 in
379.73 mm

Item No.
15 120 203


Standard Equipment
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.



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