TENSIONING DEVICE FOR TORQUE TRANSMISSION BETWEEN A GEARED SHAFT AND A CYLINDRICAL SLEEVE SURROUNDING THE SHAFT COAXIAL

摘要

The device has an outer ring (2) at whose periphery recesses are arranged to accommodate clamping balls (10). The recesses have spherical inner surface whose inner radius is equal to or fractionally exceeds radius of the balls so that a gap remains between the inner surface and a ball-shaped surface of the balls. The ring has a thickness smaller than the radius of the balls, where the gap approaches a zero point in a contact region between the balls and inner surface in a clamping end position of the balls so that a dust-impermeable connection is generated between the balls and inner surface.