Guehring Ohg

Hakki Aygün

Bruno Teusch

The invention relates to a hydraulic expansion chuck () with a hydraulic expansion mechanism () that is integrated into a chuck body () and exhibits an expansion bushing () with a continuous cylindrical interior wall, and to a reducing bushing () arranged in the expansion bushing () for accommodating a shank tool (W), in particular a tap drill. According to the invention, the outer circumference of the reducing bushing () is positively connected with the chuck body () in a torque-proof manner, and its inner circumference is designed to be positively connected with the shank tool (W) in a torque-proof manner.

Hydro-expansion chuck

The invention relates to an adjusting device for axially supporting a shank tool in a shrink-fit chuck tool holder, comprising a leveling section on the side facing the shank tool to level out or at least reduce any changes in position and/or orientation of the shank tool which are due to shrinkage.

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Krauchenwies, Germany

Hakki Aygün