SPHERICAL DEVICE PROVIDED WITH CONVEX SPLINES FOR FORMING A BALL-AND-SOCKET JOINT HAVING A FINGER, AND WOBBLE PUMP PROVIDED WITH SUCH A DEVICE

摘要

The present invention concerns a device for forming a ball-and-socket joint having a finger. The device (10) comprises a cylindrical inner surface (11). The device comprises an outer surface (12) in the form of a sphere truncated at the ends of same. According to the invention, the inner surface (11) comprises at least one groove (14) or one spline. Moreover, the outer surface (12) comprises at least one convex spline (13). The invention also concerns a connection between a shaft and a plate with such a device, and a wobble pump equipped with such a device.