Northfield Precision Instrument Corporation recently introducesd 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, their 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 the world’s most accurate air chucks for any lathe, boring machine, grinder or VMC. Models include through-hole, high-speed and quick-change. Chucks are available in SAE or metric, in sizes from 76mm to 18 457mm. Accuracies of 0.001" to 0.00001"(0.254m) are guaranteed.