Ruland PSMR16-5-5-SS, 5mm X 5mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.9mm OD, 20.3mm Length

Ruland MRLC25-12-5-A, 12mm X 5mm Long Slit Coupling, Aluminum, Clamp Style, 25.0mm OD, 34.0mm Length

Ruland BC16-1/2"-6MM-A, 1/2" X 6mm Bellows Coupling, High Stiffness, Aluminum, 1.000" (25.4Mm), OD 1.345" (34.2Mm) Length

Ruland MDCDE57-30-25-A, 30mm X 25mm Double Disc Coupling, Aluminum, Clamp Style, Electrically Isolating, 57.2mm OD, 78.2mm Length

Ruland DCSK32-20MM-1/2"-A, 20mm X 1/2" Single Disc Coupling, Aluminum, Clamp Style With Keyway, 2.000" (50.8Mm) OD, 1.813" (46.1Mm) Length