You searched for "parallel misalignment"
Lenze
Lenze Jaw Coupling, 45mm Outside Diameter, 12mm Bore, 54mm Length Coupler
Part: 13024170
Flexible jaw coupling for 12mm shafts with angular and parallel misalignment tolerance.
Lenze
Lenze Jaw Coupling, 35mm Outside Diameter, 6mm Bore, 51mm Length Coupler
Part: 13024169
Precision jaw coupling for small bore shafts with flexible misalignment tolerance.