Abstract: Cone-coupling for interconnecting a hub (4) and a shaft (5) and comprising an outer cone sleeve (1) and an inner cone sleeve (2) designed for being clamped together by means of screws (3), whereby at least one of the cone sleeves is brought to move in the radial direction for interconnecting the hub (4) and the shaft (5). The radially moving cone sleeve or cone sleeves (1, 2) are formed with several axial slots (16, 17) extending through the material of the sleeves, and the said sleeve or sleeves (1, 2) are formed with a weakened deformation portion (18, 19) located axially outside the hub (4) to be connected to the shaft (5) and allowing a radial parallel displacement of the slotted sleeve portions (14, 15).

Abstract: The invention relates to a method and an apparatus for setting up tools, work pieces and similar (11, 12, 19) on a rotatable spindle (10) by means of a clamp bushing comprising a double walled sleeve (2, 3) which is closed at both ends and which has at one end a fixed radially outwards directed collar (5) and at the opposite end means (6-9) for axially securing the tools or similar (11, 12, 19) on the clamp bushing, and in which the bushing is formed with means (16, 17) for providing a pressure in a recess (4) formed between the outer wall (2) and the inner wall (3) of the bushing and for releasing the pressure from said recess.