{"product_id":"1-mod-15-teeth-blue-nylon-spur-gear-bore-4mm-5mm","title":"1 Mod 15 Teeth Blue Nylon Spur Gear Bore 4mm 5mm Pinion Plastic Gear with Step","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003e1 Mod 15 Teeth Blue Nylon Spur Gear — Lightweight Pinion for Precision DIY Drives\u003c\/h2\u003e\n    \u003cp\u003eWhen your motion system demands a quiet, corrosion-resistant pinion that won't add unnecessary mass, standard metal gears become a liability. Makers, robotics builders, and small-machine designers working with compact drive trains need a 1 Mod 15 Teeth spur gear that fits standard motor shafts without modification. This blue nylon stepped-bore pinion is engineered for exactly that use case — delivering reliable mesh engagement in lightweight assemblies where noise reduction and chemical resistance matter.\u003c\/p\u003e\n    \u003cp\u003eEach gear is machined from engineering-grade blue nylon (PA66-class), offering a good balance of rigidity and self-lubrication. The module is 1M (1 mm\/tooth), tooth count is 15T, and the stepped bore accommodates either a 4 mm or 5 mm shaft depending on the variant selected. Overall gear outer diameter is approximately 17 mm (≈0.67 in), face width typically 10–15 mm (≈0.39–0.59 in), and the step shoulder allows secure axial positioning without additional collars in most applications.\u003c\/p\u003e\n    \u003cp\u003eTypical use cases include: compact 1 Mod gear train assemblies in desktop CNC routers and pen plotters; pinion-rack drive systems for lightweight linear actuators; and motor-output stages in educational robotics kits and 3D printer extruder drives where a nylon 1M 15T spur gear reduces audible mesh noise versus steel alternatives.\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\u003eCompatible with:\u003c\/strong\u003e All standard Module 1 (1M) spur gear systems — pairs directly with 1M racks, 1M pinions, and 1M ring gears. Bore fits 4 mm or 5 mm motor shafts (select variant). Not recommended for high-torque steel gear meshes.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e✅ Key Features of These 1 Mod 15 Teeth Blue Nylon Spur Gears\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-features\"\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e🔵\u003c\/div\u003e\n      \u003cstrong\u003eEngineering-Grade Blue Nylon\u003c\/strong\u003e\n      \u003cp\u003eManufactured from PA66-class nylon for consistent dimensional stability, self-lubrication, and resistance to oils and mild chemicals — no external grease required in most low-load applications.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e📐\u003c\/div\u003e\n      \u003cstrong\u003ePrecision 1M 15T Profile\u003c\/strong\u003e\n      \u003cp\u003eModule 1, 15-tooth involute tooth form ensures smooth, low-backlash mesh with any standard 1M mating gear or rack. Pressure angle 20° (standard), suitable for both parallel-shaft and simple gear-train layouts.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e🔩\u003c\/div\u003e\n      \u003cstrong\u003eStepped Bore for Shaft Retention\u003c\/strong\u003e\n      \u003cp\u003eThe integrated bore step provides a positive axial shoulder against motor shaft flanges or retaining clips, reducing the need for additional spacers in compact assemblies. Available in 4 mm and 5 mm bore diameters.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e🔇\u003c\/div\u003e\n      \u003cstrong\u003eLow-Noise Operation\u003c\/strong\u003e\n      \u003cp\u003eNylon-on-metal or nylon-on-nylon mesh runs significantly quieter than all-steel gear pairs — ideal for desktop machines, educational robots, and any application where acoustic performance is a design criterion.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e⚖️\u003c\/div\u003e\n      \u003cstrong\u003eLightweight Construction\u003c\/strong\u003e\n      \u003cp\u003eNylon density is roughly one-seventh that of steel, reducing rotational inertia and overall system weight — a meaningful advantage in battery-powered or servo-driven mechanisms where mass budget is tight.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv\u003e\n      \u003cdiv class=\"hdiy-icon\"\u003e📦\u003c\/div\u003e\n      \u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e\n      \u003cp\u003eAvailable in 1, 2, 5, or 10-piece packs to match prototyping or small-batch production needs. Multi-piece packs offer better per-unit value for builds requiring multiple identical pinions.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003ch2\u003e📐 Technical Specifications — 1 Mod Nylon Spur Gear\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eModule\u003c\/th\u003e\n\u003ctd\u003e1M (1 mm per tooth)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eNumber of Teeth\u003c\/th\u003e\n\u003ctd\u003e15T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePressure Angle\u003c\/th\u003e\n\u003ctd\u003e20°\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePitch Diameter\u003c\/th\u003e\n\u003ctd\u003e15 mm (0.59 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eOuter Diameter (approx.)\u003c\/th\u003e\n\u003ctd\u003e~17 mm (~0.67 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eFace Width\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBore Diameter\u003c\/th\u003e\n\u003ctd\u003e4 mm or 5 mm (select variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBore Type\u003c\/th\u003e\n\u003ctd\u003eStepped bore\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eEngineering nylon (PA66-class)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eBlue\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eGear Type\u003c\/th\u003e\n\u003ctd\u003eSpur gear (parallel axis)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eHub \/ Step\u003c\/th\u003e\n\u003ctd\u003eYes — integrated step shoulder\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eLubrication\u003c\/th\u003e\n\u003ctd\u003eSelf-lubricating (dry operation capable)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMax Recommended Load\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e1 \/ 2 \/ 5 \/ 10 PCS (select variant)\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\u003eWhich bore size should I choose — 4 mm or 5 mm?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMatch the bore to your motor or drive shaft diameter. A 4 mm bore fits common N20, 130-class, and many stepper motor output shafts used in desktop CNC and robotics. A 5 mm bore suits NEMA 17 stepper motors and many DC gear-motor shafts. If your shaft is between sizes, always choose the smaller bore and ream or use a shaft adapter — do not force a larger bore onto a smaller shaft.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan this nylon gear mesh with a metal (steel or aluminum) 1M gear?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Nylon-on-metal meshing is a common and intentional design choice. The nylon gear acts as the sacrificial element, wearing preferentially to protect the metal gear. This pairing also reduces noise and eliminates the need for lubrication in many low-to-medium load applications. Ensure the mating gear is also Module 1 with a 20° pressure angle for correct mesh.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow strong is this gear — what torque can it handle?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003ePA66-class nylon spur gears at 1M 15T are suited for light-to-moderate loads typical of robotics, 3D printer extruders, and small automation mechanisms. Exact torque capacity depends on operating speed, temperature, and mating gear material. For high-torque or continuous-duty industrial applications, consider a metal gear alternative. Contact us to confirm suitability for your specific load case.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs this gear corrosion-resistant? Can it be used in humid or wet environments?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eNylon has good inherent resistance to moisture, oils, and mild chemicals, making it suitable for humid environments where steel gears would corrode. However, prolonged water immersion can cause nylon to absorb moisture and swell slightly, which may affect dimensional tolerances. For fully submerged or wash-down applications, verify dimensional stability under your specific conditions.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWill this gear fit a standard 1M rack or ring gear from another supplier?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes — Module 1 is an internationally standardized gear metric. Any 1M gear or rack with a 20° pressure angle will mesh correctly with this pinion regardless of brand, provided the tooth profile follows the standard involute form. Always verify the module and pressure angle of your mating component before assembly.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I secure the gear on the shaft — does it need a set screw or keyway?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe stepped bore provides axial positioning. For radial retention, a set screw, retaining clip, or shaft collar is typically used depending on your assembly design. This gear does not include a pre-drilled set screw hole as standard — if your application requires one, it can usually be added with a drill press. Contact us if you need a custom configuration.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow many gears do I need for my project — which pack size is right?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eFor single-axis prototyping or replacement, the 1 PCS pack is sufficient. If you are building a multi-axis robot or a machine with several identical drive stages, the 5 or 10 PCS pack offers better per-unit value and ensures you have spares on hand. The 2 PCS pack suits dual-motor or mirrored-drive configurations.\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 Bore size and Packing QTY 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\": \"Which bore size should I choose — 4 mm or 5 mm?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Match the bore to your motor or drive shaft diameter. A 4 mm bore fits common N20, 130-class, and many stepper motor output shafts. A 5 mm bore suits NEMA 17 stepper motors and many DC gear-motor shafts. If your shaft is between sizes, choose the smaller bore and ream or use a shaft adapter.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can this nylon gear mesh with a metal (steel or aluminum) 1M gear?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Nylon-on-metal meshing is a common design choice. The nylon gear acts as the sacrificial element, wearing preferentially to protect the metal gear, while also reducing noise and eliminating lubrication needs in many low-to-medium load applications.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How strong is this gear — what torque can it handle?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"PA66-class nylon spur gears at 1M 15T are suited for light-to-moderate loads typical of robotics, 3D printer extruders, and small automation mechanisms. For high-torque or continuous-duty industrial applications, consider a metal gear alternative.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this gear corrosion-resistant? Can it be used in humid or wet environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Nylon has good inherent resistance to moisture, oils, and mild chemicals, making it suitable for humid environments. Prolonged water immersion may cause slight dimensional changes due to moisture absorption.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will this gear fit a standard 1M rack or ring gear from another supplier?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — Module 1 is an internationally standardized gear metric. Any 1M gear or rack with a 20° pressure angle will mesh correctly with this pinion, regardless of brand.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I secure the gear on the shaft?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The stepped bore provides axial positioning. For radial retention, a set screw, retaining clip, or shaft collar is typically used. This gear does not include a pre-drilled set screw hole as standard.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many gears do I need — which pack size is right?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"For single-axis prototyping or replacement, the 1 PCS pack is sufficient. Multi-axis builds benefit from the 5 or 10 PCS pack for better per-unit value and spare availability. The 2 PCS pack suits dual-motor or mirrored-drive configurations.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"1M 15T \/ 4mm \/ 1 PCS","offer_id":52442823393554,"sku":"AdaahGLCDPJ00446x1","price":9.6,"currency_code":"USD","in_stock":true},{"title":"1M 15T \/ 4mm \/ 2 PCS","offer_id":52442823426322,"sku":"AdaahGLCDPJ00446x2","price":15.0,"currency_code":"USD","in_stock":true},{"title":"1M 15T \/ 4mm \/ 5 PCS","offer_id":52442823459090,"sku":"AdaahGLCDPJ00446x5","price":28.9,"currency_code":"USD","in_stock":true},{"title":"1M 15T \/ 4mm \/ 10 PCS","offer_id":52442823491858,"sku":"AdaahGLCDPJ00446x10","price":56.7,"currency_code":"USD","in_stock":true},{"title":"1M 15T \/ 5mm \/ 1 PCS","offer_id":52442823524626,"sku":"AdaahGLCDPJ00447x1","price":9.6,"currency_code":"USD","in_stock":true},{"title":"1M 15T \/ 5mm \/ 2 PCS","offer_id":52442823557394,"sku":"AdaahGLCDPJ00447x2","price":15.0,"currency_code":"USD","in_stock":true},{"title":"1M 15T \/ 5mm \/ 5 PCS","offer_id":52442823590162,"sku":"AdaahGLCDPJ00447x5","price":28.9,"currency_code":"USD","in_stock":true},{"title":"1M 15T \/ 5mm \/ 10 PCS","offer_id":52442823622930,"sku":"AdaahGLCDPJ00447x10","price":56.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture6of8_faddf6ea-314e-4fff-b4d8-4b177d969c1d.jpg?v=1783608962","url":"https:\/\/homediyer.com\/products\/1-mod-15-teeth-blue-nylon-spur-gear-bore-4mm-5mm","provider":"HomeDIYer","version":"1.0","type":"link"}