{"product_id":"aluminum-flexible-shaft-coupler-3d-printer-cnc-stepper-motor","title":"Aluminum Flexible Shaft Coupler for 3D Printer \u0026 CNC Machines","description":"\n\u003ch2\u003eAluminum Flexible Shaft Coupler for 3D Printers, Engraving \u0026amp; CNC Machines\u003c\/h2\u003e\n\u003cp\u003eKeep your motors running true with this compact \u003cstrong\u003eAluminum Alloy Flexible Shaft Coupler\u003c\/strong\u003e. Designed for 42mm stepper motors commonly used in 3D printers, engraving machines, CNC routers, boat models, and other DIY builds, this coupler absorbs minor shaft misalignment so your drives stay smooth and accurate. The helical-cut flexible section compensates for angular and parallel offsets without transmitting unwanted vibration to your lead screw or driven shaft.\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\u003eMaterial:\u003c\/strong\u003e Durable aluminum alloy – lightweight yet rigid enough for precision motion\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Blue anodized finish for easy identification and corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter Dimensions:\u003c\/strong\u003e 14 mm (diameter) × 25 mm (length)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable Bore Sizes:\u003c\/strong\u003e 5×5 mm \/ 5×8 mm \/ 6×8 mm \/ 8×8 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Motor:\u003c\/strong\u003e 42 mm NEMA 17 stepper motor (standard 3D printer \/ CNC motor)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo assembly required\u003c\/strong\u003e – ready to install straight out of the package\u003c\/li\u003e\n  \u003cli\u003eConnects two shafts of equal or different diameters with secure set-screw clamp\u003c\/li\u003e\n  \u003cli\u003eIdeal for 3D printers, laser engravers, CNC machines, model boats, model cars, and other DIY mechanical projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlexible Shaft Coupler\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOuter Diameter × Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14 × 25 mm (approx. 0.55 × 0.98 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5×5 mm \/ 5×8 mm \/ 6×8 mm \/ 8×8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlue\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAssembly Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\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\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Aluminum Flexible Shaft Coupler\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Due to manual measurement, please allow a tolerance of 0–1 cm. Slight color variation may occur due to lighting and display settings.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-2-inch-8-piece-hex-short-socket-set-vanadium-steel\"\u003e1\/2\" Drive 8-Piece Hex Short Socket Set – Vanadium Steel\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-piece-complete-gardening-tool-kit\"\u003e10-Piece Gardening Tool Kit – Iron Head \u0026amp; Plastic Handle\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/hex-nut-bolt-extractor-tool-kit-10-piece\"\u003e10-Pc Hex Nut \u0026amp; Bolt Extractor Kit 9–19mm | HIP Tools\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What bore sizes does this aluminum shaft coupler come in?\u003c\/h4\u003e\n\u003cp\u003eA: This flexible shaft coupler is available in four bore size combinations: 5×5 mm, 5×8 mm, 6×8 mm, and 8×8 mm, making it compatible with a wide range of stepper motor and lead screw shaft diameters used in 3D printers and CNC machines.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this coupler compatible with NEMA 17 stepper motors?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The coupler is specifically designed for 42 mm (NEMA 17) stepper motors, the most common motor size used in 3D printers, engraving machines, and DIY CNC builds.\u003c\/p\u003e\n\u003ch4\u003eQ: How does the flexible shaft coupler handle misaligned shafts?\u003c\/h4\u003e\n\u003cp\u003eA: The helical-cut flexible section of the coupler absorbs angular and parallel misalignment between the motor shaft and the driven shaft, ensuring smooth, accurate power transmission without putting stress on bearings or motor axes.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this coupler require any tools or assembly before use?\u003c\/h4\u003e\n\u003cp\u003eA: No assembly is required. Simply slide the coupler onto the motor shaft and lead screw, then tighten the set screws with a standard hex key (Allen wrench) to secure it in place — it is ready to use right out of the package.\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 bore sizes does this aluminum shaft coupler come in?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This flexible shaft coupler is available in four bore size combinations: 5×5 mm, 5×8 mm, 6×8 mm, and 8×8 mm, making it compatible with a wide range of stepper motor and lead screw shaft diameters used in 3D printers and CNC machines.\"}}, {\"@type\": \"Question\", \"name\": \"Is this coupler compatible with NEMA 17 stepper motors?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. 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Simply slide the coupler onto the motor shaft and lead screw, then tighten the set screws with a standard hex key (Allen wrench) to secure it in place — it is ready to use right out of the package.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/rw8eae-v1.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Tools \u0026 Household\", \"item\": \"https:\/\/rw8eae-v1.myshopify.com\/collections\/tools-household\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Aluminum Flexible Shaft Coupler for 3D Printer \u0026 CNC Machines\", \"item\": \"https:\/\/rw8eae-v1.myshopify.com\/products\/aluminum-flexible-shaft-coupler-3d-printer-cnc-stepper-motor\"}]}\u003c\/script\u003e","brand":"HIP","offers":[{"title":"5x8mm \/ CN","offer_id":46305503314154,"sku":"1005012454686595-5x8mm-CN","price":1.7,"currency_code":"USD","in_stock":true},{"title":"6x8mm \/ CN","offer_id":46305503346922,"sku":"1005012454686595-6x8mm-CN","price":1.7,"currency_code":"USD","in_stock":true},{"title":"8x8mm \/ CN","offer_id":46305503379690,"sku":"1005012454686595-8x8mm-CN","price":1.74,"currency_code":"USD","in_stock":true},{"title":"5x5mm \/ CN","offer_id":46305503412458,"sku":"1005012454686595-5x5mm-CN","price":1.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4590\/4618\/files\/S90e50ffd686f47ca934adf7c019bb9d4e.webp?v=1789878996","url":"https:\/\/hipcustomerservice.com\/products\/aluminum-flexible-shaft-coupler-3d-printer-cnc-stepper-motor","provider":"HIP","version":"1.0","type":"link"}