Abstract: A clamping jaw for a chuck includes a jaw body on which there is formed at least one jaw step having a step head, which has a sensor on its end face, for holding a clamping insert which is formed from a base leg and two fastening legs projecting from the base leg. On each of the opposite longitudinal sides of the step head there is formed a threaded bore for receiving a fastening screw whose screw head is received in a through-opening which is formed in the fastening leg of the clamping insert that is assigned to the longitudinal side, wherein, on each side, the longitudinal axes of the threaded bore and of the through-opening assigned thereto have an offset when the base leg bears against the end face. Also, a chuck has a chuck body, in which such clamping jaws are arranged in uniformly-distributed radial jaw guides.

Abstract: A segment collet, which includes at least two clamping segments, each of which has a receptacle, in which a coupling ring is accommodated, which connects the clamping segments to each other. A securing device is provided to connect the coupling ring to the clamping segments for the purpose of limiting the axial mobility of the clamping segments relative to the coupling ring as well as to fix their circumferential position. The invention furthermore relates to a coupling ring for a segment collet.

Abstract: A segment collet, which includes at least two clamping segments, each of which has a receptacle, in which a coupling ring is accommodated, which connects the clamping segments to each other. A securing device is provided to connect the coupling ring to the clamping segments for the purpose of limiting the axial mobility of the clamping segments relative to the coupling ring as well as to fix their circumferential position. The invention furthermore relates to a coupling ring for a segment collet.