The main items of every KOSTYRKA® clamping sleeve are flexible bushes made from a metal-plastic composite. They are axially held in housings and surround the part and clamp it by applying pressure oil to the sleeve jacket. Especially interesting: The oil pressure is converted loss- and reaction-free into a radially acting clamping force. The sleeves spring back elastically to their starting position after the oil pressure is removed, and the previously clamped part is released again. The surfaces of the clamped parts are not damaged with this adherence-actuated form of power transmission.