Collet chuck for rolling element screw drive

Abstract

A collet chuck with a chuck body, a collet, and a clamping nut in which the chuck body has a coupling section for coupling the collet chuck to the working spindle of a machine tool and has a collet holder embodied in the form of an inner cone and at least one thread groove for the screwing-on of the clamping nut; the collet has an outer cone, which is complementary to this inner cone, as well as a cylindrical tool holder; the collet chuck is embodied so that by tightening the clamping nut, the collet can be driven far enough into the collet holder that the tool shaft is held in a rotationally secured fashion; and the clamping nut has at least one thread groove; where rolling elements are inserted between the thread grooves of the chuck body and the clamping nut so that the clamping nut and the chuck body constitute a rolling element screw drive.

Dependencies are inferred from the claim text.