{"product_id":"nbk-japan-mfbs-12-3mm-to-4mm-bellows-type-flexible","title":"NBK Japan MFBS-12 3mm to 4mm Bellows-type Flexible Coupling Stainless Steel, Zero-Backlash Bellows Flexible Shaft Coupling for Servo and Stepper Motors","description":"\u003cdiv\u003eNBK Japan MFBS-12 3mm to 4mm Bellows-Type Stainless Steel Flexible Coupling - Zero-Backlash, High-Torque Shaft Coupling for Servo and Stepper Motors \u003cbr\u003e\n✔️ Bellows-style stainless steel coupling for 3 mm and 4 mm shafts, 23.5 mm long, 12 mm OD, zero backlash, high torsional rigidity, ideal for servo and stepper motors. \u003cp\u003eNBK Japan MFBS-12 is a bellows-type flexible coupling designed to absorb angular misalignment, eccentricity, and end-play between motor and driven components. It is commonly used in precision motion setups such as CNC machines, 3D printers, and robotics to ensure accurate torque transfer with minimal backlash.\u003c\/p\u003e ✅ Bore 1: 3 mm; Bore 2: 4 mm\u003cbr\u003e\n✅ Length: 23.5 mm\u003cbr\u003e\n✅ Outer diameter: 12 mm\u003cbr\u003e\n✅ Material: stainless steel\u003cbr\u003e\n✅ Type: bellows-type flexible coupling\u003cbr\u003e\n✅ Features: zero backlash, high torsional rigidity, high torque, constant velocity\u003cbr\u003e\n✅ Ideal for servo and stepper motors\u003cbr\u003e\n✅ Made in Japan\u003cbr\u003e\n✅ Quantity: One\u003cbr\u003e\n✅ Wrench torque: 0.5 N-m\u003cbr\u003e 💡 What is a bellows-type flexible coupling used for in precision motion systems?\nBellows couplings transmit motion precisely while absorbing minor shaft misalignment and end play, keeping motion smooth and accurate.\n- Absorbs angular misalignment and end play\u003cbr\u003e\n- Maintains zero-backlash torque transfer for accurate position control\u003cbr\u003e\n- Delivers high torsional rigidity in a compact form factor\u003cbr\u003e\n- Suits CNC, 3D printing, and robotics where reliable motion matters\u003cbr\u003e\nThis handy coupling helps maintain accuracy and performance in fast, precise motion tasks. \u003cbr\u003e \u003ctable cellspacing=\"2\" cellpadding=\"10\" bg=\"\" border=\"1\"\u003e\u003ctbody\u003e\u003ctr align=\"center\"\u003e\u003ctd align=\"center\"\u003e\u003cfont face=\"Tahoma\" size=\"+2\"\u003eNBK Japan MFBS-12 3mm to 4mm\u003cbr\u003estainless steel Bellows-type Flexible Coupling\u003c\/font\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e \u003cbr\u003e \u003ctable cellspacing=\"2\" cellpadding=\"5\" width=\"80%\" border=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd valign=\"top\" align=\"left\"\u003e\n\u003cp align=\"justify\"\u003e\u003cfont face=\"tahoma\"\u003eNBK Japan MFBS-12 3mm to 4mm Bellows-type Flexible Coupling stainless, this is a bellows type flexible coupling. The bellows allows eccentricity, angularmisalignment, and end-play. \u003c\/font\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eCoupling Bore 1 Diameter: 3mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eCoupling Bore 2 Diameter: 4mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eCoupling Length: 23.5\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eCoupling Outer Diameter:12\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eMaterial: Stainless Steel\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eZero Backlash\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eHigh torsional rigidity\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eHigh Torque\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eConstant Velocity\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eSimple Design\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eMade in Japan\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eQuantity: One\u003c\/font\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfont face=\"tahoma\"\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/font\u003e\u003ccenter\u003e\u003ctable cellspacing=\"2\" cellpadding=\"5\" border=\"1\"\u003e\u003ctbody\u003e\n\u003ctr align=\"center\"\u003e\n\u003ctd align=\"center\"\u003e\u003cfont face=\"tahoma\"\u003eA\u003c\/font\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cfont face=\"tahoma\"\u003eL\u003c\/font\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cfont face=\"tahoma\"\u003eW\u003c\/font\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cfont face=\"tahoma\"\u003eE\u003c\/font\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cfont face=\"tahoma\"\u003eF\u003c\/font\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cfont face=\"tahoma\"\u003eM\u003c\/font\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cfont face=\"tahoma\"\u003eWrench Torque(N-m)\u003c\/font\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr align=\"center\"\u003e\n\u003ctd align=\"center\"\u003e\u003cfont face=\"tahoma\"\u003e12mm\u003c\/font\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cfont face=\"tahoma\"\u003e7.5mm\u003c\/font\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cfont face=\"tahoma\"\u003e23.5mm\u003c\/font\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cfont face=\"tahoma\"\u003e7mm\u003c\/font\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cfont face=\"tahoma\"\u003e2.5mm\u003c\/font\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cfont face=\"tahoma\"\u003eM2.6\u003c\/font\u003e\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003cfont face=\"tahoma\"\u003e0.5\u003c\/font\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"8\" align=\"Center\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/center\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e","brand":"NBK","offers":[{"title":"Default Title","offer_id":43560133066987,"sku":"MFBS-12-3mm-4mm","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/bellows-flexible-coupling-stainless-steel.jpg?v=1770442670","url":"https:\/\/vxb.com\/products\/nbk-japan-mfbs-12-3mm-to-4mm-bellows-type-flexible","provider":"VXB Bearings","version":"1.0","type":"link"}