{"product_id":"l070-l075-cnc-shaft-coupler-flexible-plum-spider-jaw-coupling-stepper-motor-3d","title":"L070 L075 CNC Shaft Coupler Flexible Plum Spider Jaw Coupling Stepper Motor 3D","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003eL070 \u0026amp; L075 Flexible Plum Spider Jaw Shaft Couplers for CNC \u0026amp; Stepper Motor Precision\u003c\/h2\u003e\n    \u003cp\u003eWhen misalignment, vibration, or shaft runout causes your CNC router, 3D printer, or stepper motor drive to lose accuracy, the coupling is often the first thing to check. Engineers, makers, and machine builders who need reliable torque transmission without rigid metal-to-metal contact will find the L070 and L075 flexible plum spider jaw shaft couplers a direct solution to those problems.\u003c\/p\u003e\n    \u003cp\u003eEach coupler consists of two aluminum alloy hubs and a polyurethane spider insert (plum blossom mat). The L070 model features a 35 mm outer diameter hub body, while the L075 model steps up to a 45 mm outer diameter for higher-torque applications. Bore options range from no-hole blanks (for custom machining) to pre-bored sizes of 8 mm, 10 mm, 12 mm, 14 mm, 15 mm, and 16 mm (approximately 0.31–0.63 in), each available with set-screw holes for secure shaft locking. The spider insert is sold separately as the L070 Plum Blossom Mat in 35 mm diameter.\u003c\/p\u003e\n    \u003cp\u003eTypical use cases include CNC lead-screw to stepper motor connections, 3D printer Z-axis couplings, servo motor test rigs, and light-duty power transmission in automation equipment — anywhere a flexible jaw coupling for stepper motors is needed to absorb shock and compensate for angular or parallel misalignment.\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    Compatible with stepper motors, servo motors, CNC lead screws, ball screws, and 3D printer Z-axis assemblies. Verify shaft diameter before ordering.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-features\"\u003e\n    \u003ch2\u003e✅ Key Features of These Flexible Plum 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 Hub Models\u003c\/strong\u003e\n        \u003cp\u003eL070 (35 mm OD) and L075 (45 mm OD) cover a wide range of torque requirements, from compact 3D printer axes to heavier CNC drive shafts.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e\n        \u003cstrong\u003eMultiple Bore Options\u003c\/strong\u003e\n        \u003cp\u003eAvailable as no-hole blanks or pre-bored to 8, 10, 12, 14, 15, or 16 mm with set-screw holes, eliminating custom machining for most standard motor shafts.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🌀\u003c\/span\u003e\n        \u003cstrong\u003ePolyurethane Spider Insert\u003c\/strong\u003e\n        \u003cp\u003eThe plum blossom elastomer insert absorbs vibration and shock loads, protecting motor bearings and reducing noise during operation.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n        \u003cstrong\u003eMisalignment Compensation\u003c\/strong\u003e\n        \u003cp\u003eThe jaw-and-spider design accommodates angular, parallel, and axial misalignment, making installation forgiving even when shaft alignment is imperfect.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n        \u003cstrong\u003eAluminum Alloy Hubs\u003c\/strong\u003e\n        \u003cp\u003eLightweight yet rigid aluminum alloy construction keeps rotational inertia low while maintaining structural integrity under continuous duty cycles.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\n        \u003cstrong\u003eReplaceable Spider Mat\u003c\/strong\u003e\n        \u003cp\u003eThe L070 Plum Blossom Mat is available as a standalone item, so you can replace worn inserts without discarding the aluminum hubs.\u003c\/p\u003e\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 — Flexible Plum Spider Jaw Shaft Coupler\u003c\/h2\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eModel Options\u003c\/th\u003e\n\u003ctd\u003eL070 Shaft Coupler \/ L075 Shaft Coupler \/ L070 Plum Blossom Mat\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eHub Outer Diameter\u003c\/th\u003e\n\u003ctd\u003eL070: 35 mm (1.38 in) | L075: 45 mm (1.77 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBore Diameter\u003c\/th\u003e\n\u003ctd\u003eNo Holes (blank) \/ 8 mm \/ 10 mm \/ 12 mm \/ 14 mm \/ 15 mm \/ 16 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBore Locking\u003c\/th\u003e\n\u003ctd\u003eSet-screw hole (on bored variants)\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\u003eSpider Insert Material\u003c\/th\u003e\n\u003ctd\u003ePolyurethane (plum blossom elastomer)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eCoupling Type\u003c\/th\u003e\n\u003ctd\u003eFlexible jaw \/ spider coupling\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMisalignment Tolerance\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMax Torque\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eNatural anodized aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 PCS (hub or mat, per selection)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eCompatible Applications\u003c\/th\u003e\n\u003ctd\u003eCNC machines, 3D printers, stepper\/servo motors, automation equipment\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 between the L070 and L075 shaft coupler?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe L070 has a 35 mm outer diameter hub and suits compact stepper motor setups such as 3D printer Z-axes and light CNC lead screws. The L075 has a 45 mm outer diameter and is designed for higher-torque applications where a larger coupling body is needed. Check your motor flange clearance and torque rating before selecting.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhich bore size should I order for my stepper motor shaft?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMeasure your motor shaft diameter precisely with calipers. Common NEMA 17 stepper shafts are 5 mm and NEMA 23 shafts are typically 6.35 mm or 8 mm. If your shaft size is not listed, order the no-hole blank variant and bore it to your exact specification. All bored variants include a set-screw hole for secure locking.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs the spider insert (plum blossom mat) included with the shaft coupler hubs?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe L070 Shaft Coupler and L075 Shaft Coupler listings are for the aluminum hub only. The L070 Plum Blossom Mat (35 mm) is a separate line item. If you need a complete coupling assembly, add both the hub pair and the mat to your cart. This also allows you to replace worn inserts independently without buying new hubs.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow much misalignment can this flexible jaw coupling handle?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eFlexible plum spider jaw couplings of this type typically accommodate angular misalignment of up to 1°–3° and parallel (radial) offset of up to 0.2–0.5 mm, depending on the spider durometer and hub size. For exact tolerance values specific to your application, contact us to confirm before ordering.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWill these couplers corrode in humid or outdoor environments?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe aluminum alloy hubs are naturally corrosion-resistant and are anodized for additional surface protection. The polyurethane spider insert is resistant to oils and moderate moisture. For prolonged outdoor or high-humidity exposure, periodic inspection of the spider insert is recommended as elastomers can degrade over time under UV or chemical exposure.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use this coupler on a ball screw or lead screw CNC axis?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Flexible jaw couplings are widely used to connect stepper or servo motor output shafts to ball screws and lead screws in CNC routers, laser cutters, and milling machines. The spider insert absorbs backlash-inducing shock and reduces vibration transmitted to the screw, helping maintain positioning accuracy.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the difference between ordering 1 PCS and a multi-piece set?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eCurrently all variants are listed as 1 PCS per order. One shaft coupler hub connects one end of a shaft. A complete coupling between two shafts requires two hubs (one per shaft end) plus one spider insert. Order accordingly based on how many coupling points your machine requires.\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 (Diameter x Bore) 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 between the L070 and L075 shaft coupler?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The L070 has a 35 mm outer diameter hub and suits compact stepper motor setups such as 3D printer Z-axes and light CNC lead screws. The L075 has a 45 mm outer diameter and is designed for higher-torque applications where a larger coupling body is needed. Check your motor flange clearance and torque rating before selecting.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Which bore size should I order for my stepper motor shaft?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure your motor shaft diameter precisely with calipers. Common NEMA 17 stepper shafts are 5 mm and NEMA 23 shafts are typically 6.35 mm or 8 mm. If your shaft size is not listed, order the no-hole blank variant and bore it to your exact specification. All bored variants include a set-screw hole for secure locking.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is the spider insert (plum blossom mat) included with the shaft coupler hubs?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The L070 Shaft Coupler and L075 Shaft Coupler listings are for the aluminum hub only. The L070 Plum Blossom Mat (35 mm) is a separate line item. If you need a complete coupling assembly, add both the hub pair and the mat to your cart.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How much misalignment can this flexible jaw coupling handle?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Flexible plum spider jaw couplings of this type typically accommodate angular misalignment of up to 1°–3° and parallel (radial) offset of up to 0.2–0.5 mm, depending on the spider durometer and hub size. Contact us to confirm exact tolerance values for your application.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will these couplers corrode in humid or outdoor environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The aluminum alloy hubs are naturally corrosion-resistant and anodized for additional surface protection. The polyurethane spider insert is resistant to oils and moderate moisture. Periodic inspection is recommended for prolonged outdoor or high-humidity use.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use this coupler on a ball screw or lead screw CNC axis?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Flexible jaw couplings are widely used to connect stepper or servo motor output shafts to ball screws and lead screws in CNC routers, laser cutters, and milling machines. The spider insert absorbs shock and reduces vibration, helping maintain positioning accuracy.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between ordering 1 PCS and a multi-piece set?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Currently all variants are listed as 1 PCS per order. One shaft coupler hub connects one end of a shaft. A complete coupling between two shafts requires two hubs plus one spider insert. Order accordingly based on how many coupling points your machine requires.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"L070 Shaft Coupler \/ 35mm x No Holes \/ 1 PCS","offer_id":52421908005138,"sku":"GYJLTHXCDZH3238x1","price":48.81,"currency_code":"USD","in_stock":true},{"title":"L070 Shaft Coupler \/ 35mm x 16mm + Screw Hole \/ 1 PCS","offer_id":52421908037906,"sku":"GYJLTHXCDZH3239x1","price":51.53,"currency_code":"USD","in_stock":true},{"title":"L070 Shaft Coupler \/ 35mm x 12mm + Screw Hole \/ 1 PCS","offer_id":52421908070674,"sku":"GYJLTHXCDZH3240x1","price":51.53,"currency_code":"USD","in_stock":true},{"title":"L070 Shaft Coupler \/ 35mm x 8mm + Screw Hole \/ 1 PCS","offer_id":52421908103442,"sku":"GYJLTHXCDZH3241x1","price":51.53,"currency_code":"USD","in_stock":true},{"title":"L070 Shaft Coupler \/ 35mm x 10mm + Screw Hole \/ 1 PCS","offer_id":52421908136210,"sku":"GYJLTHXCDZH3242x1","price":51.53,"currency_code":"USD","in_stock":true},{"title":"L075 Shaft Coupler \/ 45mm x No Holes \/ 1 PCS","offer_id":52421908168978,"sku":"GYJLTHXCDZH3243x1","price":82.67,"currency_code":"USD","in_stock":true},{"title":"L070 Shaft Coupler \/ 35mm x 14mm + Screw Hole \/ 1 PCS","offer_id":52421908201746,"sku":"GYJLTHXCDZH3244x1","price":51.53,"currency_code":"USD","in_stock":true},{"title":"L070 Shaft Coupler \/ 35mm x 15mm + Screw Hole \/ 1 PCS","offer_id":52421908234514,"sku":"GYJLTHXCDZH3245x1","price":51.53,"currency_code":"USD","in_stock":true},{"title":"L070 Plum Blossom Mat \/ 35mm \/ 1 PCS","offer_id":52421908267282,"sku":"GYJLTHXCDZH3246x1","price":7.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-03_43ff3dcd-b637-4af0-b39e-81218acca65e.jpg?v=1783348829","url":"https:\/\/homediyer.com\/products\/l070-l075-cnc-shaft-coupler-flexible-plum-spider-jaw-coupling-stepper-motor-3d","provider":"HomeDIYer","version":"1.0","type":"link"}