Giubo

The giubo is made from flexible synthetic rubber and is designed to allow some angular and axial misalignment while reducing driveline vibration in mechanical power transmission applications.

The giubo may also have a harmonically "phased" design, typically requiring arrows that are marked on it to point to the corresponding flange arms.

[1] Boschi later founded GIUBO SpA, a company solely dedicated to manufacturing flex discs.

As used on several British cars, such as the Hillman Imp, Triumph GT6 MKII/GT6+, Lotus Elan and some early versions of the Land Rover Discovery, the item is known as a Rotoflex coupling.

[3][4][5] The Porsche 917 used a Giubo centered on the rear half-shaft, but in a manner that did not require the joint to laterally flex.