{"product_id":"2-pcs-8mm-to-8mm-flexible-shaft-coupling-aluminum-plum-spider-jaw-coupler-d20-l30-for-3d-printer-cnc-stepper-motor-size-8x8mm","title":"2 Pcs 8mm to 8mm Flexible Shaft Coupling – Aluminum Plum Spider Jaw Coupler D20 L30 for 3D Printer, CNC, Stepper Motor - size: 8x8mm","description":"\u003ch3\u003eAbout this item\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e【Precision Fit \u0026amp; Wide Compatibility】 – Engineered with precise bore dimensions: 8mm (0.31\") on both ends. This flexible shaft coupling ensures seamless connection between drive shafts and driven components. Compatible with NEMA 17 servo motors, stepper motors, and spindles for 3D printers (Creality, RepRap) and DIY CNC machines. Size: L30mm x D20mm (1.18\" x 0.79\"). ⚠️ Please measure your motor shaft (8mm) and lead screw (8mm) before ordering.\u003c\/li\u003e\n\u003cli\u003e【Shock Absorption \u0026amp; Motor Protection】 – Features a high-elasticity polyurethane spider insert (plum-shaped) that absorbs vibration and compensates for radial, angular, and axial misalignments. This plum coupling protects motor bearings from stress damage during high-speed operation – extends the lifespan of your entire motion control system. Will this reduce vibration? Yes – the elastic insert dampens shock effectively.\u003c\/li\u003e\n\u003cli\u003e【Easy Installation \u0026amp; Secure Grip】 – Clamping type mechanism allows quick assembly without detaching the motor. This jaw coupler design provides a powerful grip on the shaft – prevents slippage even under heavy load. Installation tip: Center the spider insert between hubs. Use included Allen key – do not over-tighten. Will it hold securely? Yes – the clamping design ensures a tight, wobble-free connection.\u003c\/li\u003e\n\u003cli\u003e【Professional Grade Durability】 – Each pack includes 2 premium couplings with refined surface oxidation treatment for corrosion resistance. This motor coupling is rigorously tested for concentricity – a reliable choice for upgrading Z-axis lead screws or building custom automation equipment. Each coupling weighs approx. 34g – lightweight yet robust.\u003c\/li\u003e\n\u003cli\u003e【Complete Package \u0026amp; Versatile Application】 – Includes 2 shaft plum couplings + 1 Allen key. Suitable for CNC machines, servo motors, spindles, stepper motors, encoders, robotics, and DIY automation projects requiring reliable shaft coupling connections with vibration damping\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Type:\u003c\/strong\u003e Clamping type\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Surface oxidation treatment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Red\/Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal Type:\u003c\/strong\u003e Aluminum Alloy\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Brand: RiseDirectly","offers":[{"title":"Default Title","offer_id":52546575106268,"sku":"B0GS34X8P6-size-8x8mm","price":19.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0913\/3020\/files\/41quX37jB3L.jpg?v=1789906923","url":"https:\/\/stemora.us\/products\/2-pcs-8mm-to-8mm-flexible-shaft-coupling-aluminum-plum-spider-jaw-coupler-d20-l30-for-3d-printer-cnc-stepper-motor-size-8x8mm","provider":"Stemora","version":"1.0","type":"link"}