Ruland
Ruland Beam Coupling, 13mm Outside Diameter, 5mm Bore, 19.1mm Length Coupler
Part: PCMR13-5-4-A
Miniature beam coupling handles angular and parallel shaft misalignment reliably.
Huco
Huco Oldham Coupling, 19mm Outside Diameter, 5mm Bore Coupler
Part: 453H19.20
Compact Oldham coupling for small machinery shafts with parallel misalignment compensation.