{"product_id":"1-mod-25-teeth-blue-nylon-spur-gear-bore-5mm-12mm-pinion-plastic-gear-with-step","title":"1 Mod 25 Teeth Blue Nylon Spur Gear Bore 5mm-12mm Pinion Plastic Gear with Step","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003e1 Mod 25-Tooth Blue Nylon Spur Gear — Lightweight Pinion Gear for Precision DIY Drives\u003c\/h2\u003e\n    \u003cp\u003eWhen a metal gear is overkill and a generic plastic gear won't hold tolerance, makers and engineers reach for a nylon spur gear that balances strength, weight, and quiet operation. Whether you're building a compact robot arm, upgrading a 3D printer extruder drive, or prototyping a custom gearbox, the right bore fit is critical — and this stepped-bore design gives you exactly that flexibility.\u003c\/p\u003e\n    \u003cp\u003eThis listing covers a Module 1 (1M), 25-tooth blue nylon spur gear with a stepped hub. The gear body is machined from engineering-grade nylon (PA66 or equivalent), offering a pitch diameter of 25 mm (≈ 0.98 in) and an overall gear width typically in the range of 10–15 mm (≈ 0.39–0.59 in). Bore options span 5 mm, 6 mm, 6.35 mm (1\/4 in), 7 mm, 8 mm, 10 mm, and 12 mm to suit standard motor shafts and drive axles. The stepped hub provides a shoulder for secure axial positioning without additional collars.\u003c\/p\u003e\n    \u003cp\u003eTypical use cases include low-noise spur gear drives in desktop CNC machines, lightweight gear trains in educational robotics kits, and replacement pinion gears in small automation equipment where a 1 mod 25 tooth nylon gear reduces backlash noise compared to metal 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\u003eCompatibility:\u003c\/strong\u003e Meshes with any Module 1 (1M) spur or rack gear. Verify bore diameter matches your motor or drive shaft before ordering.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-features\"\u003e\n    \u003ch2\u003e✅ Key Features of These 1 Mod 25-Tooth Nylon Spur Gears\u003c\/h2\u003e\n    \u003cdiv class=\"hdiy-list\"\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔵\u003c\/span\u003e\n        \u003cstrong\u003eEngineering Nylon Construction\u003c\/strong\u003e\n        \u003cp\u003eMade from PA66-grade nylon for reliable mechanical strength, low friction, and resistance to wear — suitable for continuous-duty light-load applications.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n        \u003cstrong\u003eModule 1 Standard — Universal Mesh\u003c\/strong\u003e\n        \u003cp\u003e1M tooth profile meshes precisely with any other Module 1 gear, rack, or pinion, making integration into existing gear trains straightforward.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e\n        \u003cstrong\u003eStepped Bore for Secure Shaft Fit\u003c\/strong\u003e\n        \u003cp\u003eThe stepped hub design provides a positive axial shoulder, reducing the need for additional shaft collars and simplifying assembly in tight spaces.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔇\u003c\/span\u003e\n        \u003cstrong\u003eLow-Noise, Self-Lubricating Operation\u003c\/strong\u003e\n        \u003cp\u003eNylon's inherent self-lubricating properties reduce operational noise and eliminate the need for frequent re-greasing in most light-duty drive applications.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\n        \u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e\n        \u003cp\u003eAvailable in 1, 2, 5, or 10-piece packs — order exactly what your project requires without overstocking or paying single-unit pricing on bulk needs.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n        \u003cstrong\u003eWide Bore Range: 5 mm to 12 mm\u003c\/strong\u003e\n        \u003cp\u003eSeven bore sizes (5, 6, 6.35, 7, 8, 10, 12 mm) cover the most common motor shaft diameters used in robotics, automation, and maker projects.\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 — Module 1 Nylon Spur Gear\u003c\/h2\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eModule\u003c\/th\u003e\n\u003ctd\u003e1 (1M)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eNumber of Teeth\u003c\/th\u003e\n\u003ctd\u003e25T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePitch Diameter\u003c\/th\u003e\n\u003ctd\u003e25 mm (≈ 0.98 in)\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\u003eGear Width (Face Width)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBore Diameter Options\u003c\/th\u003e\n\u003ctd\u003e5 mm \/ 6 mm \/ 6.35 mm \/ 7 mm \/ 8 mm \/ 10 mm \/ 12 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eHub Style\u003c\/th\u003e\n\u003ctd\u003eStepped hub\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eEngineering nylon (PA66 or equivalent)\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 (external)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePacking Quantity\u003c\/th\u003e\n\u003ctd\u003e1 \/ 2 \/ 5 \/ 10 PCS (select above)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWeight (per piece)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\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\u003eWhat does \"1 Mod\" or \"Module 1\" mean for this gear?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eModule (M) is the standard metric measurement of gear tooth size. Module 1 means the pitch diameter equals the number of teeth in millimeters — so a 25-tooth Module 1 gear has a 25 mm pitch diameter. Two gears must share the same module to mesh correctly. This gear will mesh with any other 1M spur gear, rack, or pinion.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right bore size for my motor shaft?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMeasure your motor or drive shaft diameter with calipers. Select the bore that matches exactly — for example, a 6.35 mm bore fits a standard 1\/4-inch shaft. The stepped hub provides axial positioning; you may also use a set screw or adhesive for additional retention depending on your torque requirements.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs nylon strong enough for my application?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eEngineering nylon (PA66) is well-suited for light-to-medium duty applications such as 3D printer drives, small robotics, educational kits, and low-torque automation. It is not recommended for high-torque, high-temperature (above ~120°C \/ 248°F), or heavy shock-load environments where metal gears would be more appropriate.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eDoes nylon resist moisture and corrosion?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eNylon has good resistance to oils, greases, and mild chemicals, and it does not rust or corrode like metal. However, PA66 can absorb moisture over time, which may cause slight dimensional changes. For outdoor or high-humidity environments, ensure the gear is protected or consider a moisture-stabilized nylon grade.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWill this gear mesh with a metal Module 1 gear?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Module 1 is a standardized tooth profile, so this nylon gear will mesh correctly with any metal or plastic Module 1 spur gear or rack with a matching 20° pressure angle. Pairing a nylon gear with a metal pinion is a common technique to reduce noise and wear on the softer gear as a sacrificial element.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow many pieces should I order?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eFor prototyping or single-axis builds, 1 or 2 PCS is typically sufficient. For multi-axis machines, production runs, or to keep spares on hand, the 5 or 10 PCS packs offer better per-unit value. Select your preferred quantity using the \"Packing QTY\" option above before adding to cart.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eDoes this gear require lubrication?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eNylon is self-lubricating under most light-duty conditions and typically does not require grease or oil for normal operation. If used in higher-speed or higher-load applications, a small amount of dry PTFE lubricant or light machine oil can extend service life without degrading the nylon material.\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 \u003cstrong\u003eBore size\u003c\/strong\u003e and \u003cstrong\u003ePacking QTY\u003c\/strong\u003e 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\": \"What does \\\"1 Mod\\\" or \\\"Module 1\\\" mean for this gear?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Module (M) is the standard metric measurement of gear tooth size. Module 1 means the pitch diameter equals the number of teeth in millimeters — so a 25-tooth Module 1 gear has a 25 mm pitch diameter. Two gears must share the same module to mesh correctly. This gear will mesh with any other 1M spur gear, rack, or pinion.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right bore size for my motor shaft?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure your motor or drive shaft diameter with calipers. Select the bore that matches exactly — for example, a 6.35 mm bore fits a standard 1\/4-inch shaft. The stepped hub provides axial positioning; you may also use a set screw or adhesive for additional retention depending on your torque requirements.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is nylon strong enough for my application?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Engineering nylon (PA66) is well-suited for light-to-medium duty applications such as 3D printer drives, small robotics, educational kits, and low-torque automation. It is not recommended for high-torque, high-temperature (above ~120°C \/ 248°F), or heavy shock-load environments where metal gears would be more appropriate.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does nylon resist moisture and corrosion?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Nylon has good resistance to oils, greases, and mild chemicals, and it does not rust or corrode like metal. However, PA66 can absorb moisture over time, which may cause slight dimensional changes. For outdoor or high-humidity environments, ensure the gear is protected or consider a moisture-stabilized nylon grade.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will this gear mesh with a metal Module 1 gear?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Module 1 is a standardized tooth profile, so this nylon gear will mesh correctly with any metal or plastic Module 1 spur gear or rack with a matching 20° pressure angle. Pairing a nylon gear with a metal pinion is a common technique to reduce noise and wear on the softer gear as a sacrificial element.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many pieces should I order?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"For prototyping or single-axis builds, 1 or 2 PCS is typically sufficient. For multi-axis machines, production runs, or to keep spares on hand, the 5 or 10 PCS packs offer better per-unit value. Select your preferred quantity using the Packing QTY option above before adding to cart.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does this gear require lubrication?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Nylon is self-lubricating under most light-duty conditions and typically does not require grease or oil for normal operation. If used in higher-speed or higher-load applications, a small amount of dry PTFE lubricant or light machine oil can extend service life without degrading the nylon material.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"1M 25T \/ 5mm \/ 1 PCS","offer_id":52442826539282,"sku":"AdaahGLCDPJ00572x1","price":11.37,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 5mm \/ 2 PCS","offer_id":52442826572050,"sku":"AdaahGLCDPJ00572x2","price":18.36,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 5mm \/ 5 PCS","offer_id":52442826604818,"sku":"AdaahGLCDPJ00572x5","price":40.92,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 5mm \/ 10 PCS","offer_id":52442826637586,"sku":"AdaahGLCDPJ00572x10","price":80.63,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 6mm \/ 1 PCS","offer_id":52442826670354,"sku":"AdaahGLCDPJ00573x1","price":11.37,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 6mm \/ 2 PCS","offer_id":52442826703122,"sku":"AdaahGLCDPJ00573x2","price":18.36,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 6mm \/ 5 PCS","offer_id":52442826735890,"sku":"AdaahGLCDPJ00573x5","price":40.92,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 6mm \/ 10 PCS","offer_id":52442826768658,"sku":"AdaahGLCDPJ00573x10","price":80.63,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 6.35mm \/ 1 PCS","offer_id":52442826801426,"sku":"AdaahGLCDPJ00574x1","price":11.37,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 6.35mm \/ 2 PCS","offer_id":52442826834194,"sku":"AdaahGLCDPJ00574x2","price":18.36,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 6.35mm \/ 5 PCS","offer_id":52442826866962,"sku":"AdaahGLCDPJ00574x5","price":40.92,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 6.35mm \/ 10 PCS","offer_id":52442826899730,"sku":"AdaahGLCDPJ00574x10","price":80.63,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 7mm \/ 1 PCS","offer_id":52442826932498,"sku":"AdaahGLCDPJ00575x1","price":11.37,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 7mm \/ 2 PCS","offer_id":52442826965266,"sku":"AdaahGLCDPJ00575x2","price":18.36,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 7mm \/ 5 PCS","offer_id":52442826998034,"sku":"AdaahGLCDPJ00575x5","price":40.92,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 7mm \/ 10 PCS","offer_id":52442827030802,"sku":"AdaahGLCDPJ00575x10","price":80.63,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 8mm \/ 1 PCS","offer_id":52442827063570,"sku":"AdaahGLCDPJ00576x1","price":11.37,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 8mm \/ 2 PCS","offer_id":52442827096338,"sku":"AdaahGLCDPJ00576x2","price":18.36,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 8mm \/ 5 PCS","offer_id":52442827129106,"sku":"AdaahGLCDPJ00576x5","price":40.92,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 8mm \/ 10 PCS","offer_id":52442827161874,"sku":"AdaahGLCDPJ00576x10","price":80.63,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 10mm \/ 1 PCS","offer_id":52442827194642,"sku":"AdaahGLCDPJ00577x1","price":11.37,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 10mm \/ 2 PCS","offer_id":52442827227410,"sku":"AdaahGLCDPJ00577x2","price":18.36,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 10mm \/ 5 PCS","offer_id":52442827260178,"sku":"AdaahGLCDPJ00577x5","price":40.92,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 10mm \/ 10 PCS","offer_id":52442827292946,"sku":"AdaahGLCDPJ00577x10","price":80.63,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 12mm \/ 1 PCS","offer_id":52442827325714,"sku":"AdaahGLCDPJ00578x1","price":11.37,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 12mm \/ 2 PCS","offer_id":52442827358482,"sku":"AdaahGLCDPJ00578x2","price":18.36,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 12mm \/ 5 PCS","offer_id":52442827391250,"sku":"AdaahGLCDPJ00578x5","price":40.92,"currency_code":"USD","in_stock":true},{"title":"1M 25T \/ 12mm \/ 10 PCS","offer_id":52442827424018,"sku":"AdaahGLCDPJ00578x10","price":80.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture3of8_d8ef8632-ba94-4403-9195-6f5e39950c9c.jpg?v=1783613613","url":"https:\/\/homediyer.com\/products\/1-mod-25-teeth-blue-nylon-spur-gear-bore-5mm-12mm-pinion-plastic-gear-with-step","provider":"HomeDIYer","version":"1.0","type":"link"}