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Northfield Precision Instrument Corp. introduces their special 5 inch diameter diaphragm chuck with morse taper number three female bore for locators. The chuck has a built-in pneumatic hammer to expel morse taper locators. The diaphragm centers the work piece and pulls it onto the MT-3 stops.
The MT-3 type stops (not shown) are hardened and ground to 60-63 RC and ground between centers to guarantee concentricity.
Related Glossary Terms
- centers
centers
Cone-shaped pins that support a workpiece by one or two ends during machining. The centers fit into holes drilled in the workpiece ends. Centers that turn with the workpiece are called “live” centers; those that do not are called “dead” centers.
- chuck
chuck
Workholding device that affixes to a mill, lathe or drill-press spindle. It holds a tool or workpiece by one end, allowing it to be rotated. May also be fitted to the machine table to hold a workpiece. Two or more adjustable jaws actually hold the tool or part. May be actuated manually, pneumatically, hydraulically or electrically. See collet.
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