| 摘要 |
An air actuated multi-jaw chuck. The jaws are actuated by a piston coupled to the jaws by means of an angularly deployed key which mates with a keyway connected to the jaw. Means are provided for adjusting the relationship between the jaw and the actuating mechanism. This permits the achievement of extreme concentricity. A radially acting collet accepts workpieces whose diameters might vary by as much as 0.040 inches and still maintain concentricity.
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