Ruland DCSK32-25MM-7/8"-A, 25mm X 7/8" Single Disc Coupling, Aluminum, Clamp Style With Keyway, 2.000" (50.8Mm) OD, 1.813" (46.1Mm) Length

Ruland MDCDK25-10-10-A, 10mm X 10mm Double Disc Coupling, Aluminum, Clamp Style With Keyway, 25.4mm OD, 34.9mm Length

Ruland MDCD41-20-20-A, 20mm X 20mm Double Disc Coupling, Aluminum, Clamp Style, 41.3mm OD, 55.0mm Length

Ruland DCS36-7/8"-16MM-A, 7/8" X 16mm Single Disc Coupling, Aluminum, Clamp Style, 2.250" (57.2Mm) OD, 2.313" (58.8Mm) Length

Ruland BCK36-1 1/8"-20MM-A, 1 1/8" X 20mm Bellows Coupling With Keyways, High Stiffness, Aluminum, 2.250" (57.2Mm), OD 3.235" (82.2Mm) Length