Feature: 1. Double Diaphragm Coupling: This is a double section U shaped diaphragm coupling, which has an outer diameter 26mm. 2. Clip Mount: This double coupler can be firmly attached to the shaft, accommodate angular, parallel deviations, greatly help your work. 3. Aluminum Alloy, Stainless Steel: Aluminum alloy wheels are lightweight and stainless steel discs are strong, giving the product a long life span. 4. Main Application: The coupler is manufactured by fine workmanship, professional and standard, which is an important accessory for screw rod. 5. Wide Application: This double couplings are suitable for connecting servo motors, stepper motors, encoders, screw drives, machine tool platforms, etc. Specification: Item Type: Double Diaphragm Coupling Coupler Material: Aluminum Alloy, Stainless Steel Outer Diameter: Approx. 26mm/1in Shaft Diameter: Approx. 12mm/0.5in(Maximum) Approx. 10mm/0.4in(Minimum) Axial Displacement: ±0.33K²a Eccentricity: 0.15Kr Angular: 2.2a Static: 960Nm/rad Radial: 700Nm/rad Rated Torsion: 2.2Nm Maximum Torsion: 4.4Nm. Package List: 1 x Double Diaphragm Coupling Coupler Note: Pay attention to the correct operation.