{"product_id":"cnc-shaft-coupler-flexible-xl-type-spider-jaw-coupling-stepper-motor-super-torque","title":"CNC Shaft Coupler Flexible XL Spider Jaw Coupling Stepper Motor Super Torque","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eXL Spider Jaw Shaft Coupler — Flexible CNC Coupling for Stepper \u0026amp; Servo Motors\u003c\/h2\u003e\n\u003cp\u003eWhen misalignment, vibration, or shock loads threaten your CNC machine's precision, a rigid coupling is the first point of failure. Engineers and machine builders who run stepper or servo motor drives need a shaft coupler that absorbs torsional shock without sacrificing torque transmission — that's exactly what this XL-series spider jaw coupling is designed to do.\u003c\/p\u003e\n\u003cp\u003eEach set consists of two aluminum alloy hubs and one polyurethane plum blossom (spider) insert. Hub outer diameters range from 40 mm (≈1.57 in) to 105 mm (≈4.13 in), with hub heights ranging from 65 mm to 139 mm depending on model. The spider insert is available separately so you can replace wear components without replacing the entire coupling assembly.\u003c\/p\u003e\n\u003cp\u003eTypical applications include CNC router Z-axis drives, 3D printer lead-screw couplings, laser engraver stepper motor connections, and industrial servo motor shaft-to-shaft connections where angular or parallel misalignment compensation is required.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e⚙️\u003c\/span\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for XL-series stepper and servo motor shafts. Select the model (XL1–XL6) and size that matches your motor shaft diameter and hub spacing. Plum blossom mat variants are replacement spider inserts only — hubs sold separately.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These XL Spider Jaw Shaft Couplers\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n  \u003cdiv\u003e\n    \u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n    \u003cstrong\u003eTwo-Piece Aluminum Hub Design\u003c\/strong\u003e\u003cbr\u003eEach shaft coupler consists of two precision-machined aluminum alloy hubs that clamp securely onto motor and driven shafts, maintaining concentricity under load.\n  \u003c\/div\u003e\n  \u003cdiv\u003e\n    \u003cspan class=\"hdiy-icon\"\u003e🌸\u003c\/span\u003e\n    \u003cstrong\u003ePolyurethane Spider Insert\u003c\/strong\u003e\u003cbr\u003eThe plum blossom elastomeric insert sits between the jaw faces to absorb torsional shock, dampen vibration, and compensate for minor angular and parallel shaft misalignment.\n  \u003c\/div\u003e\n  \u003cdiv\u003e\n    \u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n    \u003cstrong\u003eSix Size Options (XL1–XL6)\u003c\/strong\u003e\u003cbr\u003eHub outer diameters from 40 mm to 105 mm (≈1.57–4.13 in) cover a wide range of stepper and servo motor frame sizes — from compact NEMA 17 drives up to larger industrial servo frames.\n  \u003c\/div\u003e\n  \u003cdiv\u003e\n    \u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\n    \u003cstrong\u003eReplaceable Spider Insert\u003c\/strong\u003e\u003cbr\u003eThe plum blossom mat is available as a standalone variant, so you can replace the wear element without discarding the aluminum hubs — reducing long-term maintenance cost.\n  \u003c\/div\u003e\n  \u003cdiv\u003e\n    \u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\n    \u003cstrong\u003eSuper Torque Transmission\u003c\/strong\u003e\u003cbr\u003eThe jaw-and-spider geometry provides positive torque transmission in both rotational directions, making these couplers suitable for reversing drive applications common in CNC and automation systems.\n  \u003c\/div\u003e\n  \u003cdiv\u003e\n    \u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\n    \u003cstrong\u003eCorrosion-Resistant Aluminum Hubs\u003c\/strong\u003e\u003cbr\u003eHubs are machined from aluminum alloy with a natural or anodized finish, offering resistance to oxidation in typical workshop and light industrial environments.\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — XL Spider Jaw Shaft Coupler\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eFlexible Spider Jaw Shaft Coupler (XL Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHub Material\u003c\/th\u003e\n\u003ctd\u003eAluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eInsert Material\u003c\/th\u003e\n\u003ctd\u003ePolyurethane (Plum Blossom \/ Spider)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eAvailable Models\u003c\/th\u003e\n\u003ctd\u003eXL1, XL2, XL3, XL4, XL5, XL6\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHub Outer Diameter\u003c\/th\u003e\n\u003ctd\u003e40 mm \/ 55 mm \/ 65 mm \/ 80 mm \/ 95 mm \/ 105 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHub Height (Coupler)\u003c\/th\u003e\n\u003ctd\u003e65 mm \/ 77 mm \/ 89 mm \/ 112 mm \/ 124 mm \/ 139 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBore Diameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eTorque Rating\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMisalignment Compensation\u003c\/th\u003e\n\u003ctd\u003eAngular and parallel (minor offset)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDrive Type\u003c\/th\u003e\n\u003ctd\u003eJaw \/ Spider (Plum Blossom)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 PCS (hub set or insert, per selection)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I choose the right XL model size for my motor?\u003c\/summary\u003e\n  \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMatch the hub outer diameter to your motor's shaft diameter and the available space in your drive assembly. XL1 (40 mm OD) suits compact stepper frames, while XL6 (105 mm OD) is intended for larger servo motor shafts. Check your motor's shaft diameter specification and select the corresponding model. If you are between sizes, choose the larger model for a more secure clamp fit.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the difference between the Shaft Coupler variant and the Plum Blossom Mat variant?\u003c\/summary\u003e\n  \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe Shaft Coupler variant includes the two aluminum hubs — the complete coupling body that mounts onto your motor and driven shafts. The Plum Blossom Mat variant is the polyurethane spider insert only, sold as a replacement wear part. If you already have the aluminum hubs and only need to replace the elastomeric insert, select the Mat variant for your model size.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eCan this coupler handle misalignment between the motor shaft and the driven shaft?\u003c\/summary\u003e\n  \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The spider jaw design compensates for minor angular misalignment (typically up to 1°) and small amounts of parallel offset. It is not intended for large misalignment — for best results, align shafts as closely as possible during installation and use the coupler's flexibility as a tolerance buffer rather than a primary alignment correction method.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eIs the aluminum hub resistant to corrosion in workshop environments?\u003c\/summary\u003e\n  \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eAluminum alloy hubs offer good natural oxidation resistance suitable for typical indoor workshop and light industrial environments. If your application involves exposure to cutting fluids, coolants, or high humidity, consider applying a light protective coating to the hub surfaces. The polyurethane spider insert is inherently resistant to oils and mild chemicals.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eWill this coupler work with both stepper motors and servo motors?\u003c\/summary\u003e\n  \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The XL spider jaw coupler is compatible with both stepper and servo motor shafts, provided the shaft diameter falls within the bore range for the selected model. It is commonly used in CNC routers, 3D printers, laser engravers, and general automation equipment. Confirm your motor's shaft diameter before ordering to ensure a correct fit.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should the plum blossom spider insert be replaced?\u003c\/summary\u003e\n  \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eReplacement interval depends on operating torque, speed, temperature, and duty cycle. In typical CNC and 3D printing applications, the polyurethane insert can last for extended periods under normal loads. Inspect the insert periodically for cracking, deformation, or hardening. When wear is visible or torsional play increases noticeably, replace the insert using the corresponding Plum Blossom Mat variant for your model.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n  \u003csummary\u003eCan I use this coupler for reversing drive applications?\u003c\/summary\u003e\n  \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The jaw-and-spider geometry transmits torque positively in both rotational directions, making it well-suited for reversing applications such as CNC axis drives and servo-controlled positioning systems. The spider insert maintains contact with both jaw faces throughout direction changes, preventing backlash-related positioning errors.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your Model and Size above, then add to cart.\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right XL model size for my motor?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Match the hub outer diameter to your motor's shaft diameter and the available space in your drive assembly. XL1 (40 mm OD) suits compact stepper frames, while XL6 (105 mm OD) is intended for larger servo motor shafts. Check your motor's shaft diameter specification and select the corresponding model. If you are between sizes, choose the larger model for a more secure clamp fit.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between the Shaft Coupler variant and the Plum Blossom Mat variant?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Shaft Coupler variant includes the two aluminum hubs — the complete coupling body that mounts onto your motor and driven shafts. The Plum Blossom Mat variant is the polyurethane spider insert only, sold as a replacement wear part. If you already have the aluminum hubs and only need to replace the elastomeric insert, select the Mat variant for your model size.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can this coupler handle misalignment between the motor shaft and the driven shaft?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The spider jaw design compensates for minor angular misalignment (typically up to 1°) and small amounts of parallel offset. It is not intended for large misalignment — align shafts as closely as possible during installation and use the coupler's flexibility as a tolerance buffer.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is the aluminum hub resistant to corrosion in workshop environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Aluminum alloy hubs offer good natural oxidation resistance suitable for typical indoor workshop and light industrial environments. If your application involves exposure to cutting fluids or high humidity, consider applying a light protective coating. The polyurethane spider insert is inherently resistant to oils and mild chemicals.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will this coupler work with both stepper motors and servo motors?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The XL spider jaw coupler is compatible with both stepper and servo motor shafts, provided the shaft diameter falls within the bore range for the selected model. It is commonly used in CNC routers, 3D printers, laser engravers, and general automation equipment.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How often should the plum blossom spider insert be replaced?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Replacement interval depends on operating torque, speed, temperature, and duty cycle. Inspect the insert periodically for cracking, deformation, or hardening. When wear is visible or torsional play increases noticeably, replace the insert using the corresponding Plum Blossom Mat variant for your model.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use this coupler for reversing drive applications?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The jaw-and-spider geometry transmits torque positively in both rotational directions, making it well-suited for reversing applications such as CNC axis drives and servo-controlled positioning systems.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"XL1 Shaft Coupler \/ 40mm x 65mm \/ 1 PCS","offer_id":52422929318162,"sku":"GYJLTHXCDZH2303x1","price":81.26,"currency_code":"USD","in_stock":true},{"title":"XL1 Coupler Plum Blossom Mat \/ Diameter 40mm \/ 1 PCS","offer_id":52422929350930,"sku":"GYJLTHXCDZH2304x1","price":8.15,"currency_code":"USD","in_stock":true},{"title":"XL2 Shaft Coupler \/ 55mm x 77mm \/ 1 PCS","offer_id":52422929383698,"sku":"GYJLTHXCDZH2305x1","price":161.69,"currency_code":"USD","in_stock":true},{"title":"XL2 Coupler Plum Blossom Mat \/ Diameter 55mm \/ 1 PCS","offer_id":52422929416466,"sku":"GYJLTHXCDZH2306x1","price":10.4,"currency_code":"USD","in_stock":true},{"title":"XL3 Shaft Coupler \/ 65mm x 89mm \/ 1 PCS","offer_id":52422929449234,"sku":"GYJLTHXCDZH2307x1","price":251.94,"currency_code":"USD","in_stock":true},{"title":"XL3 Coupler Plum Blossom Mat \/ Diameter 65mm \/ 1 PCS","offer_id":52422929482002,"sku":"GYJLTHXCDZH2308x1","price":13.94,"currency_code":"USD","in_stock":true},{"title":"XL4 Shaft Coupler \/ 80mm x 112mm \/ 1 PCS","offer_id":52422929514770,"sku":"GYJLTHXCDZH2309x1","price":477.56,"currency_code":"USD","in_stock":true},{"title":"XL4 Coupler Plum Blossom Mat \/ Diameter 80mm \/ 1 PCS","offer_id":52422929547538,"sku":"GYJLTHXCDZH2310x1","price":22.29,"currency_code":"USD","in_stock":true},{"title":"XL5 Shaft Coupler \/ 95mm x 124mm \/ 1 PCS","offer_id":52422929580306,"sku":"GYJLTHXCDZH2311x1","price":738.6,"currency_code":"USD","in_stock":true},{"title":"XL5 Coupler Plum Blossom Mat \/ Diameter 95mm \/ 1 PCS","offer_id":52422929613074,"sku":"GYJLTHXCDZH2312x1","price":31.4,"currency_code":"USD","in_stock":true},{"title":"XL6 Shaft Coupler \/ 105mm x 139mm \/ 1 PCS","offer_id":52422929645842,"sku":"GYJLTHXCDZH2313x1","price":996.87,"currency_code":"USD","in_stock":true},{"title":"XL6 Coupler Plum Blossom Mat \/ Diameter 105mm \/ 1 PCS","offer_id":52422929678610,"sku":"GYJLTHXCDZH2314x1","price":38.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-08_bd6dc176-904a-471d-8472-7f3c8e557724.jpg?v=1783348803","url":"https:\/\/homediyer.com\/products\/cnc-shaft-coupler-flexible-xl-type-spider-jaw-coupling-stepper-motor-super-torque","provider":"HomeDIYer","version":"1.0","type":"link"}