The Gear chuck is designed specifically to provide quick and accurate part change- overs in a simple and economic manner. Aimed primarily at gear families, the chuck also has appli- cations in hard turning and grinding applications, where repeatability, interchangeability and roundess are a concern.

The key to the operation is the simplistic locating wedge pin design, with each pin set in a jaw that snaps into place to orient and accurately locate each individual pin’s position relative to the mas- ter jaw set. Two half-turn clamp screws securely lock and hold the jaw in place, and just as easily the jaws are released, removed, changed over, and retightened with no additional adjustments or setup procedures required. The pins are nitrided to pro- vide a hard, long wearing surface area for greater service life.