Patent ID: 6485032
Filing Date: 2002-11-26
Classification: B23B,Y10T

Abstract:
A chuck comprising:a chuck body adapted to be rotated about a chuck axis; a plurality of elongated jaw arms angularly spaced about the axis, pivotal in the chuck body about respective guide axes extending secantally of the chuck axis, and axially slidable in the body, each jaw arm having a front outer end formed with a generally axially extending and radially inwardly directed outer face and an axially outwardly and forwardly directed inner face extending radially inward from an axially inner end of the outer face, the outer faces each converging axially outward with the chuck axis and forming a small acute angle with the chuck axis; respective jaw inserts each having a pair of faces complementary to and flatly engaging the respective jaw faces; and means for releasably securing the inserts to the jaw outer ends with the insert faces bearing on the jaw faces.