A cardan joint is a universal joint that enables the linking of two intersecting driveshafts. It was patented in 1664 by Robert Hooke, and was a development based on Geronimo Cardano's ring joint, hence the name 'Cardan'.
A constant velocity joint is a mechanical coupling in which the rotational speed of the output shaft is the same as that of the input shaft whatever the operating angle of the joint.
The countertrack™ joint is a fixed joint that uses the principle of “opposed tracks“ for significant packaging reduction and efficiency improvement. It combines this with a specific track shape profile in longitudinal direction to allow angles of 50 degrees and more. This breakthrough technology sets the new benchmark for constant velocity joints on the outboard side.
A GKN Innovation in automotive ball plunging constant velocity joints that is to be used in drive shafts to improve noise, vibration and harshness.