three-jaw chuck


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three-jaw chuck

[′thrē ¦jȯ ′chək]
(design engineering)
A drill chuck having three serrated-face movable jaws that can grip and hold fast an inserted drill rod.
References in periodicals archive ?
The keyless three-jaw chuck was an improvement over the more common collet arrangement, which requires a small spanner to tighten.
The clamping pins can be used to clamp a standard 6" vise, a three-jaw chuck, a customized fixture, or even a pneumatic fixture.
Spindle tapers and styles include: CAT or BT 40 and 50, HSK63, three-jaw chuck with a through hole, and a 150mm diameter faceplate.
Hurco will also launch the TMM10 slant-bed lathe with live tooling that has a 10" three-jaw chuck.
While Wilson and his company appreciate three-jaw chucks for some applications, "when we're turning a rough forging, a three-jaw chuck won't work, because there are small flats and peaks on the part that won't let the chuck properly grip the bar," he said.
GHA6-8-66 in a big bore, 8", three-jaw chuck with a 66mm through hole, compared to a standard 52mm through hole for this size chuck, allowing the user to chuck larger parts or bar feed a larger diameter bar.
Most of us are familiar with the standard three-jaw chuck used for either first or second turning operations.
Standard equipment includes Siemens 840 control; digital axis, spindle drives, and motors; 12-station Sauter auto-indexing turret; and 250-mm diameter three-jaw chuck.
Product introductions at the Logansport Matsumoto booth included the GHA6-8-66 big bore three-jaw chuck for larger parts and larger diameter bar, LMC quick change wheel chucks for processing of up to 25" diameter aluminum wheels, WDF deflash/degate wheel chuck, and Neidlein face drivers.