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 relates to a device for forming a ball-to-finger connection. The device (10) includes a cylindrical internal surface (11). The device has an outer surface (12) having a truncated sphere shape at its ends. According to the invention, the internal surface (11) comprises at least one groove (14) or a groove. In addition, the outer surface (12) has at least one domed groove (13). The invention also relates to a connection between a shaft and a plate with such a device, as well as a barrel pump equipped with such a device.