Chuck head for chuck; has clamp jaws divided by separation slits and provided with elastic connection elements, where each jaw has recess with expansion in exchange direction of coupling part

摘要

The chuck head (12) has a coupling part to engage a chuck tube and is divided by separation slits into clamp jaws (22), which are provided with elastic connection elements. Each clamp jaw has a recess (24), which has an expansion (26) in the exchange direction of the coupling part. The expansion connects the outer side of the recess in the radial direction and widens radially out towards the end face.