Specification Brand : uxcell BulletPoint : Industrial Motors BulletPoint1 : General-purpose power transmission coupling, also used in motion control applications and rotational power transmissions. Widely used in servo stepped motor, 3D printer, CNC, and encoder motor. BulletPoint2 : Package Content:2 x Flexible Shaft Couplers;Color: Silver, Red;Material: Aluminum;Connection Diameter: 8 to 8mm/0.31 to 0.31inch;Total Length: 25mm/0.98inch;Outside Diameter : 20mm/0.79inch;Attachment:Inner Hex Wrench. BulletPoint3 : The jaw coupling has three parts: two metallic hubs and an elastomer insert. The two fixed ends are made of hard aluminum alloy and the middle is made of polyurethane elastomer. You need to fit the three parts together with the jaw lock. BulletPoint4 : Due to the limitation in the shaft misalignment, please check your shaft misalignment. Too much angular or parallel misalignment will result in bearing loads that may lead to premature system wear or failure. BulletPoint5 : Wear-resistant, high hardness and excellent response. Super elastic torque can absorb vibration, appropriate a large torque transmission. Color : White Department : Women DriveSystem : External Hex ExteriorFinish : Silver ExternallyAssignedProductIdentifier : 9485557109689 ItemName : uxcell Aluminum Plum Shaft Coupling 8mm to 8mm Bore L25xD20 Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor Pack of 2 ItemPackageDimensions_Height : 0.79 inches ItemPackageDimensions_Length : 5.51 inches ItemPackageDimensions_Width : 3.94 inches ItemPackageQuantity : 1 ItemTypeKeyword : spider-couplings Manufacturer : uxcell Material : Polyurethane Material1 : Polyurethane Material2 : Aluminum MetalType : Aluminum ModelNumber : VH041227CUZX NumberOfItems : 2 NumberOfPieces : 1 PartNumber : a24010300ux1482 ProductDescription : Description: The two fixed ends are made of hard aluminum alloy and the middle is made of polyurethane elastomer, can absorb vibration, appropriate a large torque transmission. General-purpose power transmission coupling, also used in motion control applications and rotational power transmissions. Widely used in servo stepped motor, 3D printer, CNC, and encoder motor. Wear-resistant, high hardness and excellent response,high torque capacity.Simplifies the debugging difficulty.