Feature 1CROSS SLIDER: Cross type slider coupling, sliding design, which can more effectively compensate for radial and angular deviations. 2DURABLE MATERIAL: The coupler is made of high strength aluminum alloy, the block is made of PA66, with good corrosion resistance, electrical insulation. 3HIGH TORSION: The rated torsion of the shaft coupling is 9N.M, which can absorb vibration, and has good responsiveness, not easy to loosen. 4DETACHABLE TYPE: The flexible shaft coupler is detachable type, adopts clamping screw fastening method, making it easy to install and use. 5WIDE APPLICATION: This flexible shaft coupling is mainly used for CNC machine tools, servo motors, stepper motors, spindles, etc., compact and durable.Item Type: Flexible CouplerModel: D40L50Product Size: Approx. 40 x 50mm / 1.6 x 2inRated Torsion: 9N.MAllowable Eccentricity: 2.4mmAllowable Deviation Angle: 3mmMaximum Speed: 3600rpmStatic Torsion Stiffness: 520N.M/radCommonly Use D1 D2 Shaft Diameter: 8mm, 9mm, 9.525mm, 10mm, 11mm, 12mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mmThread: M5Shaft Sleeve Material: High Strength Aluminum AlloyPlastic Block Material: PA66Finish Treatment: Anodizing Treatment .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Flexible Coupler