A power collect chuck for supporting cylindrically shaped workpieces which are to be machined by means of a machine tool in the area of their free ends, consisting of: - a chuck body with a passage opening worked into its lengthways axis in order to accommodate the workpiece, - a driving means by means of which an actuation force is produced, which is absorbed by at least one actuating pin in an axially movable mounting in the chuck body, - a guide hole worked into the chuck body, in which case the guide hole is angled in the direction of the free end of the workpiece to be machined and has the actuating pin inserted in it and - at least three centring jaws, each of which is mounted in a guide groove provided in the chuck body, mounted so as to move radially in the direction of the workpiece, and each of which interacts in a driving arrangement with one of the actuating pins, characterised in that, an anti-friction bearing, preferably in the form of a roller or a plain bearing is provided on the end of the driving means facing the actuating pin, that a contact surface is worked onto the free end of the actuating pin running at right angles to the lengthways axis of the chuck body, that the contact surface and the roller or the plain bearing interact in such a way that the actuation forces of the driving means are transferred from the roller or the plain bearing onto the contact surface of the actuating pin in an axial direction, and that simultaneously a relative movement vectored at right angles to the lengthways axis of the chuck body is released between the contact surface of the actuating pin and the roller of the anti-friction bearing or the plain bearing, or an anti-friction bearing, preferably in the form of a roller or a plain bearing is provided on the free end of the actuating pin facing the driving means, that a contact surface is worked onto the free end of the driving means facing the actuating pin running at right angles to the lengthways axis of the chuck body, that the contact surface and the roller of the anti-friction bearing or the plain bearing interact in such a way that the actuation force of the driving means is transferred via its contact surface in an axial direction onto the roller of the anti-friction bearing or the plain bearing attached to the actuating pin, that simultaneously a relative movement vectored at right angles to the lengthways axis of the chuck body is released between the contact surface of the driving means and the roller of the anti-friction bearing or the plain bearing of the actuating pin, that the driving means is formed by at least two advance pistons and clamping pistons mounted one inside another in a telescopic arrangement, and that the clamping piston can be moved axially relative to the advance piston in order to generate the clamping force. - a chuck body with a passage opening worked into its lengthways axis in order to accommodate the workpiece, - a driving means by means of which an actuation force is produced, which is absorbed by at least one actuating pin in an axially movable mounting in the chuck body, - a guide hole worked into the chuck body, in which case the guide hole is angled in the direction of the free end of the workpiece to be machined and has the actuating pin inserted in it and - at least three centring jaws, each of which is mounted in a guide groove provided in the chuck body, mounted so as to move radially in the direction of the workpiece, and each of which interacts in a driving arrangement with one of the actuating pins,