Description:Shaft couplings are suitable for 3D printers, CNC machine tools, stepper motors, photoelectric encoders and other automation equipment.The coupler joint is made of aluminum alloy, motor couplers feature high strength, lightweight, corrosion resistance, and ensures long-term reliability.The spiral cutting design can compensate for angular, parallel, and axis deviations between connecting shafts.During installation, avoid applying excessive force on one side, which may result in clamping that is not secure or damage to the shaft surface.Specification:Connection Bore Diameter: 5mm to 8mmOverall Size: 0.59 x 0.79 inches/15 x 20mm (Dia x L)Material: Aluminum AlloyColor: SilverPackage Content:4 Pcs x Integrated Coupling.
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