SOFT DISK, FLEXIBLE COUPLING PROVIDED WITH SUCH A SOFT DISK, FIXING FLANGE WITH SUCH A FLEXIBLE COUPLING AND TRANSMISSION SHAFT PROVIDED WITH SUCH A FLANGE

摘要

The disk (1) has a recessed central zone (10), a circular base (20), a transition zone (30) and a peripheral flange ring (40) from a center of the disk towards a periphery of the disk. The transition zone has a minimum thickness (e1) at an edge (41) of the flange ring. The minimum thickness is determined with the help of thickness relation constituting parameters such as constant depending on an alignment defect, torque applied on a transmission torque, distance (r), and radius (R) of the central zone, to thickness of the zone (30) at the distance from a rotational axis (AX). An independent claim is also included for a method for manufacturing a flexible disk.