What is this?Couplings are widely used in blowers, 3D printers, DIY robots, CNC machine tools, stepper motors, etc. Similar to rigid clamp couplings, shaft couplings are used to secure bearings and sprockets tightly to shafts and are used in motor and transmission components. Suitable for model cars, model ships, hardware, mechanical drive occasions, etc.What will I get?Connection Bore Diameter: 8mm to 8mmSide Diameter: 3.2mm/0.13-inchTotal Length: 25mm /0.98-inchOutside Diameter: 14mm/0.55-inchThrough Angle: 180 DegreeMaterial: Aluminum AlloyScrew Thread Size: M4In the package of: 12 Pcs x Motor Rigid Coupling + 1 Pcs x Hex Head Spanner + 48 Pcs x Black Screws,48 Pcs x Silver ScrewsAre there any advantages of the product?Made of high-strength aluminum alloy, integrated structure, maintenance-free, oil-proof and corrosion-resistant.
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