Model 450 Sliding-Jaw Air Chuck

Contact Details

Northfield Precision Instrument Corp.
4400 Austin Blvd.
Island Park
United States
Toll Free Phone
March 01, 2015

Northfield Precision Instrument Corp. introduces its Model 450 Sliding-Jaw Air Chuck. This air chuck (0.0001" TIR) has special ID-gripping top jaws and an integral axial locator.

Northfield Precision Instrument has a customer who inspects and balances torque converters and other driveline parts. The customer requested a chuck that could expand to grip the ID of their female splined shafts while it rotates on their balancing machine.

Previously, the customer used a "homemade" fixture that had a slip-fit without the expanding capability to grip the ID of the part. Northfield custom-designed the Model 450 sliding-jaw air chuck to also grip the ID of the part.

Related Glossary Terms

  • 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.

  • fixture


    Device, often made in-house, that holds a specific workpiece. See jig; modular fixturing.

  • inner diameter ( ID)

    inner diameter ( ID)

    Dimension that defines the inside diameter of a cavity or hole. See OD, outer diameter.