{"product_id":"3d-printer-rigid-shaft-coupling-3mm-to-4mm-bore-20","title":"3D Printer Rigid Shaft Coupling 3mm To 4mm Bore, 20mm Length, 9mm Dia M3 Brass Shaft Coupler Connector, Copper Tone, Dope For DIY Robotics, Cars, Boats, CNC Machines, Includes 2 Couplings, 8 Screws, 2 Wrenches","description":"\u003cdiv\u003eRigid Shaft Couplings for 3mm to 4mm Bore, 20mm Length\u003cbr\u003e\n✔️ Brass rigid coupling with 3mm to 4mm bore, M3 screws, 2 pcs \u003cp\u003eThese brass rigid shaft couplings join shafts in 3D printers, CNC machines, robotics, and DIY projects, offering high torque transmission with minimal play.\u003c\/p\u003e ✅ Connection bore diameter: 3mm to 4mm\u003cbr\u003e\n✅ Screw thread size: M3x0.5\u003cbr\u003e\n✅ Total length: 20mm (0.79 inch)\u003cbr\u003e\n✅ Outside diameter: 9mm (0.35 inch)\u003cbr\u003e\n✅ Material: Brass\u003cbr\u003e\n✅ Package: 2 couplings, 8 screws, 2 wrenches\u003cbr\u003e\n✅ High torque, high rigidity, low inertia\u003cbr\u003e \u003cp\u003e💡 What is a shaft coupling and why choose a rigid brass coupling for small machinery? It’s handy for quick, solid shaft connections that minimize misalignment and transmit torque cleanly\n- Transfers torque between shafts with minimal backlash\n- Keeps shafts aligned in tight spaces, reducing vibration\n- Brass construction offers good conductivity and corrosion resistance\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49144714559723,"sku":"VXB0D3TF7PJ9","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/61yhVLWe9hL.jpg?v=1785764140","url":"https:\/\/vxb.com\/products\/3d-printer-rigid-shaft-coupling-3mm-to-4mm-bore-20","provider":"VXB Bearings","version":"1.0","type":"link"}