Features 1、 The structure is simple, easy to install, buffer, damping, convenient to disconnect 2、 Compact size and smooth surface 3、The elastic connection, it can absorb vibration, compensate radial, angular and axial misalignment 4、Good character of oil resistant, electrical insulation 5、Shaft coupling is often used to connect servo motor stepper motor, encoder, screw driving, machine platform etc Specification Features: The structure is simple, easy to install, buffer, damping, convenient to disconnect. Compact size and smooth surface. The elastic connection, it can absorb vibration, compensate radial, angular and axial misalignment. Good character of oil resistant, electrical insulation. Shaft coupling is often used to connect servo motor stepper motor, encoder, screw driving, machine platform etc. Clockwise and counterclockwise rotation properties are identical. Clamp the screws and fix them. Widely used in the shafting transmission of various mechanical devices, such as pumps, fans, compressors, petroleum machinery, printing machinery. Specifications: Elastomer material: imported polyurethane Sleeve material: high strength aluminum alloy Nominal torque: 10 (N.m) Allowable speed: 10 (r/m) Allowable torque: 8 (N.M) Length: 25mm / 0.98in Outer diameter: 20 mm / 0.79in Weight: 21g Type: 5 x 8mm / 0.20 x 0.31in Package included: 1 x Flexible Coupler Package List