Conical gripping arrangement

Conical gripping arrangement for fixing a hub onto a shaft having an axis, said hub including an external peripheral surface and an axis, the external peripheral surface of said hub designed in the form of a conical surface having a conical angle, said conical surface being coaxial to said hub axis, a conical ring having a conical internal peripheral surface and having a conical angle generally the same as said conical angle of said conical surface and which is arranged together with said internal peripheral surface on said external peripheral surface of said hub, axial tension screws which are distributed uniformly over the circumference of said hub by means of which said conical ring is located together with said conical internal peripheral surface on said conical external peripheral surface of said hub whereby said conical ring is capable of being tightened and whereby said hub is compressed radially and is clamped together with said shaft, said arrangement comprising said conical ring having first and second ends, said first end having a smaller diameter of said conical internal peripheral surface, said conical ring connected at said first end to a conical ring component, said conical ring component being non-subdivided about its circumference and located axially beyond said first end, whereby said conical ring component has a conical internal peripheral surface of generally the same conical angle as said conical surface of said hub and is coaxial to said conical ring, said hub having an internal peripheral surface which is turned towards the shaft, and a cylindrical cut away section which is coaxial to said shaft, a conical casing is further provided and located on the external peripheral surface of said shaft, said conical casing having a conical section with a conical external peripheral surface for working with said conical internal peripheral surface of said conical ring component and is connected to a casing section, said casing section connected axially to said conical section, said casing section fits into said cut away section whereby said casing section is capable of being compressed and is capable of being clamped firmly onto the shaft when said hub is compressed, said conical internal peripheral surface of said conical ring and said conical external peripheral surface of said hub forming a first pair adjacent conical surfaces, said conical internal peripheral surface of said conical ring component and said conical external peripheral surface of said conical casing forming a second pair of adjacent conical surfaces, each of said adjacent conical surfaces forming said first and second pairs of conical surface are co-optimized in such a way that on tightening said tension screws radial clamping forces are capable of being exerted in the region of said conical ring and in the region of said conical ring component.