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Item # 450THR750, 4 Inch Model 450THR750 Through Hole Rotating Chuck


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Also available with 0.000025" (25 millionths) (0.64µ) repeatability. Master Jaws move at perfect right angle to centerline of spindle.




Specifications  · Materials

Specifications

Size

4 Inch
100
mm

Repeatability (Max. Concentricity)

0.000025" (25 millionths) (0.64µ)
0.0001 (2.5µ) T.I.R.

Repeatability (Max. End Lengths)

0.0001 (2.5µ) T.I.R.

Max. Jaw Opening

0.100 Inch
2.54
mm

Force per Jaw

View
625 lb
284
kg

Weight (with Aluminum Jaws)

5 3/4 lb
2.61
kg

Weight (with Steel Jaws)

6 1/4 lb
2.84
kg

No. of Jaws

3

Hole Size

3/4 Inch
19.10
mm

Top Jaws

Located on hardened steel pins in master jaws & secured by socket head cap screws

Max. Recommended Speed

3000 rpm


Materials

Body

Class 80 Ductile Cast Iron

Master Jaws

Hardened Steel

Wedge

Hardened Steel

Air Cylinder

Aluminum, O-Ring Sealed



 Top Jaw for Chucks 


Standard Jaws 400
AL-1-4-3/4
Standard Jaws for Series 400 Chucks

NORTHFIELD PRECISION INSTRUMENT CORP.
4400 Austin Blvd.  |  Box 550  |  Island Park, NY 11558
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