{"product_id":"rigid-shaft-coupler-d40l45-stepper-servo-motor-coupling-3d-printer","title":"Rigid Shaft Coupler D40L45 Stepper Servo Motor 3D Printer CNC","description":"\u003ch2\u003eKande D40L45 Rigid Shaft Clamp Coupler – Precision Motor Coupling for 3D Printers \u0026amp; CNC Machines\u003c\/h2\u003e\n\n\u003cp\u003eUpgrade your 3D printer, CNC router, or servo motor setup with the \u003cstrong\u003eKande D40L45 Rigid Shaft Clamp Coupler\u003c\/strong\u003e. Engineered from high-grade aluminium alloy with a disc-type structure, this coupler delivers rock-solid shaft-to-shaft connection for stepper and servo motors. Whether you're building or maintaining a 3D printer or precision motion control system, this coupling provides the rigidity and dimensional accuracy your project demands.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Bore Sizes:\u003c\/strong\u003e Compatible with shaft diameters of 8, 10, 12, 14, 15, 16, 18, 20, and 22mm — fits a wide range of stepper and servo motors\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRigid Construction:\u003c\/strong\u003e Disc-type rigid coupling ensures minimal flex and maximum torque transmission between motor and lead screw or shaft\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAluminium Alloy Body:\u003c\/strong\u003e Lightweight yet durable aluminium alloy construction resists corrosion and withstands continuous operation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecise Dimensions:\u003c\/strong\u003e Outer diameter (OD) 40mm × Length 45mm (D40L45) for accurate, repeatable alignment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Clamp-style design for quick, tool-assisted shaft mounting and secure hold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3D Printer Ready:\u003c\/strong\u003e Ideal for use with popular 3D printer drive systems, CNC axes, and motor coupling applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKANDE BEARINGS\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eD40L45\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOuter Diameter (OD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e45mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminium Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStructure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDisc \/ Clamp Type\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRigid\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Shaft Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 \/ 10 \/ 12 \/ 14 \/ 15 \/ 16 \/ 18 \/ 20 \/ 22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 piece per order\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × D40L45 Rigid Shaft Clamp Coupler (Aluminium Alloy)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e3D printer lead screw and motor coupling\u003c\/li\u003e\n  \u003cli\u003eCNC machine motor shaft connections\u003c\/li\u003e\n  \u003cli\u003eStepper and servo motor drive systems\u003c\/li\u003e\n  \u003cli\u003eRobotics and automation projects\u003c\/li\u003e\n  \u003cli\u003eDIY motion control builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-durable-gold-blade-nut-metal-universal-trimmer-accessories-anti-loosening-line-left-hand-thread-replacement-parts-1\"\u003e10pcs Durable Gold Blade Nut Metal Universal Trimmer Accessories – Anti-Loosening Left Hand Thread Replacement Parts\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-2-pin-quick-splice-spring-wire-connectors-lock-terminals\"\u003e10pcs 2-Pin Spring Wire Connectors – Quick Splice Lock Terminals\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-self-tapping-screws-m2-2-m4-8-phillips-wood-hinge\"\u003e10PCS Stainless Steel Self-Tapping Screws M2.2–M4.8 Phillips\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What shaft sizes is the D40L45 rigid coupler compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: The Kande D40L45 rigid shaft coupler supports bore (shaft) diameters of 8mm, 10mm, 12mm, 14mm, 15mm, 16mm, 18mm, 20mm, and 22mm, making it versatile for a wide range of stepper motors, servo motors, and 3D printer drive systems.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this coupler suitable for 3D printer lead screw connections?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This rigid disc-type clamp coupler is an excellent choice for connecting stepper motors to lead screws in 3D printers, CNC machines, and other precision motion systems. Its aluminium alloy body ensures a secure, play-free connection for accurate positioning.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between a rigid and a flexible coupler?\u003c\/h4\u003e\n\u003cp\u003eA: A rigid coupler, like this D40L45, transmits torque with no flex between the two shafts, making it ideal for applications requiring precise alignment and maximum torque transfer. Flexible couplers absorb minor misalignment but may allow slight movement. Choose rigid when shaft alignment is well-controlled, such as in most 3D printer and CNC setups.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How many couplers are included in one order?\u003c\/h4\u003e\n\u003cp\u003eA: Each order includes 1 (one) piece of the D40L45 rigid shaft clamp coupler.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What shaft sizes is the D40L45 rigid coupler compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The Kande D40L45 rigid shaft coupler supports bore (shaft) diameters of 8mm, 10mm, 12mm, 14mm, 15mm, 16mm, 18mm, 20mm, and 22mm, making it versatile for a wide range of stepper motors, servo motors, and 3D printer drive systems.\"}}, {\"@type\": \"Question\", \"name\": \"Is this coupler suitable for 3D printer lead screw connections?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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