Ruland MDCS57-22-19-A, 22mm X 19mm Single Disc Coupling, Aluminum, Clamp Style, 57.2mm OD, 58.8mm Length

Ruland MJS33-16-A, 16mm Jaw Coupling Hub, Aluminum, Set Screw Style, 33.3mm OD, 15.0mm Length

Ruland MBCK41-15-12-A, 15mm X 12mm Bellows Coupling With Keyways, High Stiffness, Aluminum, 41.3Mm, OD 51.7mm Length

Ruland MOST19-6-A, 6mm Oldham Coupling Hub, Aluminum, Set Screw Style, 19.1mm OD, 9.7mm Length

Ruland DCSK36-7/8"-20MM-A, 7/8" X 20mm Single Disc Coupling, Aluminum, Clamp Style With Keyway, 2.250" (57.2Mm) OD, 2.313" (58.8Mm) Length

Upgrade D25L30 Flexible Shaft Coupling 8mm To 8mm Aluminium Plum Connector Flexible Coupler For 3D Printer CNC Machine And Servo Stepper Motor