Northfield Precision Instruments introduces Model 450 sliding-jaw air chuck

Offers special ID-gripping top jaws and an integral axial locator.


Island Park, New York – This air chuck (0.0001" TIR) has special ID-gripping top jaws and an integral axial locator.

Northfield Precision Instrument has a customer who requested a chuck that could expand to grip the ID of female splined shafts while they rotate on a 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 their model 450 sliding-jaw air chuck to also grip the ID of the part.

Northfield Precision Instrument designs and manufactures air chucks for lathes, boring machines, grindesr or VMCs. Models include through-hole, high-speed and quick-change. Chucks are available in SAE or metric, in sizes from 3" (76mm) to 18" (457mm). Accuracies of 0.001" to 0.00001" (0.254m) are guaranteed.

Custom workholding chucks and jaws are available and free engineering assistance is offered.

Source: Northfield Precision Instrument Corp.