Specification Brand : Yuecoom BulletPoint : Couplings BulletPoint1 : Size: 5 x 8mm / 0.20 x 0.31in, Outer diameter: 20 mm / 0.79in; Length: 25mm / 0.98in; Nominal torque: 10 (N.m); Allowable speed: 10 (r/m); Allowable torque: 8 (N.M). BulletPoint2 : Easy to Install: The structure is simple, just clamp the screws and fix them, easy to install, buffer, damping, convenient to disconnect. Compact size and smooth surface. Clockwise and counterclockwise rotation properties are identical. BulletPoint3 : High Perofrmance: The elastic connection, it can absorb vibration, compensate radial, angular and axial misalignment. Good character of oil resistant, electrical insulation. BulletPoint4 : Product Features: Shaft coupling has high torque, high rigidity, good vibration resistance, flexible response and durability in removes stress between the motor and driving components. BulletPoint5 : Wide Application: Shaft coupling is often used to connect servo motor stepper motor, encoder, screw driving, machine platform etc. Widely used in the shafting transmission of various mechanical devices, such as pumps, fans, compressors, petroleum machinery, printing machinery. ExteriorFinish : Aluminium,Aluminum ExternallyAssignedProductIdentifier : 9195480212751 ItemName : Flexible Shaft Coupling, OD20mm x L25mm 5mm to 8mm Aluminium Flexible Spider Shaft Coupler Connector for 3D Printer, CNC Machine and Servo Stepped Motor ItemPackageQuantity : 1 ItemTypeKeyword : spider-couplings Manufacturer : Yuecoom Material : Aluminum Material1 : Polyurethane Material2 : Aluminum MetalType : Aluminum NumberOfItems : 1 NumberOfPieces : 1 PartNumber : Yuecoomtykn92870c ProductDescription : Specifications:Elastomer material: imported polyurethane Sleeve material: high strength aluminum alloyNominal 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: 21gType: 5 x 8mm / 0.20 x 0.31in Package included:1 x Flexible Coupler ProductSiteLaunchDate : 2023-04-24T10:25:35.235Z Size : 7mm-11mm Style : Modern UnspscCode : 26111500