The Punk® Prime is composed of three nested rings with spherical mating surfaces: effectively it’s a spherical bearing inside a spherical bearing. Each male surface has a pair of diametrically opposed cylindrical keys, which we call ‘Mohicans’ as they resemble the famous punk hairstyle. The Mohicans are received into Mohican slots, such that each mating pair of rings has a single free axis of relative rotation, one at 90° to the other. Thus, the mid ring acts like the cruciform component in a Cardan joint, rocking back and forth to cater for angular misalignment.
The Punk® Prime elegantly separates the shaft torque from axial and radial loads and carries these load components across the joint via different paths. The load capacity across each of these paths is extremely high, making the Punk®Prime one of the most torque-dense products on the market.