{"product_id":"1-mod-38-teeth-blue-nylon-spur-gear-bore-6-17mm-pinion-plastic-gear-step","title":"1 Mod 38 Teeth Blue Nylon Spur Gear Bore 6mm-17mm Pinion Plastic Gear with Step","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e1 Mod 38-Tooth Blue Nylon Spur Gear — Lightweight Pinion for Precision DIY Drives\u003c\/h2\u003e\n\u003cp\u003eWhen your robotics project, 3D printer extruder, or small automation rig demands a gear that won't add unnecessary weight or generate disruptive noise, metal pinions fall short. Makers, hobbyists, and small-scale engineers who need a reliable 1 mod 38-tooth spur gear with a stepped bore will find this blue nylon pinion an ideal drop-in solution — no machining required.\u003c\/p\u003e\n\u003cp\u003eEach gear is machined from engineering-grade blue nylon (PA66 or equivalent), offering a good balance of tensile strength, low friction, and corrosion resistance. The stepped hub design accommodates bore diameters from 6 mm (0.24 in) to 17 mm (0.67 in), with a module of 1 and 38 teeth giving an outer diameter of approximately 40 mm (1.57 in). Available in packs of 1, 2, or 5 pieces to suit prototyping or small-batch builds.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include: compact DC motor pinion drives in tabletop robotics and CNC pen plotters; extruder gear replacements in FDM 3D printers requiring low-noise 1 mod gearing; and light-duty conveyor or indexing mechanisms in maker-grade automation rigs where a plastic spur gear with stepped bore simplifies shaft fitment.\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 Fits any mating 1 Module (1M) spur or rack gear system. Bore options 6 \/ 8 \/ 10 \/ 12 \/ 14 \/ 15 \/ 16 \/ 17 mm — select your shaft diameter above before adding to cart.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These 1 Mod 38-Tooth Blue 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-Grade Nylon Construction\u003c\/strong\u003e\n\u003cp\u003eManufactured from PA66-class nylon for a reliable combination of mechanical strength, low friction coefficient, and resistance to common lubricants and mild chemicals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n\u003cstrong\u003ePrecise 1 Module, 38-Tooth Profile\u003c\/strong\u003e\n\u003cp\u003eStandard 1M tooth profile ensures accurate mesh with any compatible 1 mod rack, pinion, or spur gear — no custom tooling or profile grinding needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n\u003cstrong\u003eStepped Bore for Multi-Shaft Compatibility\u003c\/strong\u003e\n\u003cp\u003eThe integrated step hub accepts shaft diameters from 6 mm to 17 mm, eliminating the need for bushings or adapters across a wide range of motor and drive shaft sizes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔇\u003c\/span\u003e\n\u003cstrong\u003eLow-Noise, Vibration-Damping Operation\u003c\/strong\u003e\n\u003cp\u003eNylon's inherent damping properties reduce gear mesh noise compared to metal alternatives — ideal for desktop robots, printers, and any application where acoustics matter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\n\u003cstrong\u003eCorrosion-Free in Humid or Wet Environments\u003c\/strong\u003e\n\u003cp\u003eUnlike steel or cast-iron gears, this nylon spur gear will not rust or oxidize, making it suitable for light-duty outdoor enclosures, humid workshops, or washdown-adjacent setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\n\u003cstrong\u003eFlexible Pack Quantities (1 \/ 2 \/ 5 PCS)\u003c\/strong\u003e\n\u003cp\u003eOrder a single piece for prototyping, a pair for mirrored drive trains, or a 5-pack for small production runs — all shipped as a single line item for easy inventory management.\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 — 1 Mod Nylon Spur Gear\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModule\u003c\/th\u003e\n\u003ctd\u003e1M (1.0)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Teeth\u003c\/th\u003e\n\u003ctd\u003e38T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePitch Diameter\u003c\/th\u003e\n\u003ctd\u003e38 mm (1.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (approx.)\u003c\/th\u003e\n\u003ctd\u003e40 mm (1.57 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter Options\u003c\/th\u003e\n\u003ctd\u003e6 \/ 8 \/ 10 \/ 12 \/ 14 \/ 15 \/ 16 \/ 17 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHub \/ Step Design\u003c\/th\u003e\n\u003ctd\u003eStepped bore hub\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\u003ePressure Angle\u003c\/th\u003e\n\u003ctd\u003e20°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGear Face Width\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHub Length\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Torque Rating\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePacking Quantity\u003c\/th\u003e\n\u003ctd\u003e1 PCS \/ 2 PCS \/ 5 PCS\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\u003cdetails\u003e\n\u003csummary\u003eWhich bore size should I choose for my motor shaft?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMeasure your motor or drive shaft diameter with calipers and select the matching bore option (6, 8, 10, 12, 14, 15, 16, or 17 mm). The stepped hub design means the gear seats directly on the shaft — no bushing required. If your shaft falls between listed sizes, contact us to confirm fitment before ordering.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this gear strong enough for my robotics or CNC application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003ePA66-class nylon offers good tensile strength and fatigue resistance for light-to-medium duty applications such as desktop robots, 3D printer extruders, pen plotters, and small indexing mechanisms. For high-torque or continuous heavy-load drives, a metal gear would be more appropriate. If you are unsure, share your torque and RPM requirements and we can advise.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill this gear corrode or degrade in a humid environment?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eNylon is inherently corrosion-free and resistant to moisture, mild oils, and common workshop chemicals. It will not rust. Note that prolonged submersion in water can cause slight dimensional swelling in nylon; for fully submerged applications, verify dimensional tolerances after soak testing.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this compatible with metal 1 mod spur gears or racks?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. This gear follows the standard 1 Module (1M) tooth profile with a 20° pressure angle, so it meshes correctly with any conforming 1M metal or plastic spur gear, rack, or pinion. Ensure the mating gear also specifies 1M and 20° pressure angle for proper mesh.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I secure the gear to the shaft — is a set screw included?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe gear uses a stepped bore fit. Depending on your shaft tolerance, you may secure it with a set screw (not included), a shaft collar, or a press fit. We recommend drilling and tapping a set-screw hole in the hub if a positive lock is required for your application.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I order a custom bore size not listed in the variants?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe listed bore options (6–17 mm) cover the most common shaft sizes for this gear class. If you need a non-standard bore, please contact us via the store's contact page before placing your order so we can advise on availability or alternatives.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the 1 PCS, 2 PCS, and 5 PCS packs?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eAll packs contain identical gears — the only difference is quantity. The 1 PCS option is ideal for prototyping or single-axis builds. The 2 PCS pack suits mirrored or dual-drive configurations. The 5 PCS pack offers a per-unit saving for small production runs or spare-parts inventory.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your Bore diameter 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 for my motor shaft?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure your motor or drive shaft diameter with calipers and select the matching bore option (6, 8, 10, 12, 14, 15, 16, or 17 mm). The stepped hub design means the gear seats directly on the shaft — no bushing required.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this gear strong enough for my robotics or CNC application?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"PA66-class nylon offers good tensile strength and fatigue resistance for light-to-medium duty applications such as desktop robots, 3D printer extruders, pen plotters, and small indexing mechanisms.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will this gear corrode or degrade in a humid environment?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Nylon is inherently corrosion-free and resistant to moisture, mild oils, and common workshop chemicals. It will not rust.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this compatible with metal 1 mod spur gears or racks?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. This gear follows the standard 1 Module (1M) tooth profile with a 20° pressure angle, so it meshes correctly with any conforming 1M metal or plastic spur gear, rack, or pinion.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I secure the gear to the shaft — is a set screw included?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The gear uses a stepped bore fit. You may secure it with a set screw (not included), a shaft collar, or a press fit.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I order a custom bore size not listed in the variants?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The listed bore options (6–17 mm) cover the most common shaft sizes for this gear class. Contact us before placing your order if you need a non-standard bore.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between the 1 PCS, 2 PCS, and 5 PCS packs?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"All packs contain identical gears. The 1 PCS option is ideal for prototyping. The 2 PCS pack suits dual-drive configurations. The 5 PCS pack offers a per-unit saving for small production runs.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"1M 38T \/ 6mm \/ 1 PCS","offer_id":52442830209298,"sku":"AdaahGLCDPJ00814x1","price":14.63,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 6mm \/ 2 PCS","offer_id":52442830242066,"sku":"AdaahGLCDPJ00814x2","price":24.85,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 6mm \/ 5 PCS","offer_id":52442830274834,"sku":"AdaahGLCDPJ00814x5","price":55.88,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 8mm \/ 1 PCS","offer_id":52442830307602,"sku":"AdaahGLCDPJ00815x1","price":14.63,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 8mm \/ 2 PCS","offer_id":52442830340370,"sku":"AdaahGLCDPJ00815x2","price":24.85,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 8mm \/ 5 PCS","offer_id":52442830373138,"sku":"AdaahGLCDPJ00815x5","price":55.88,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 10mm \/ 1 PCS","offer_id":52442830405906,"sku":"AdaahGLCDPJ00816x1","price":14.63,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 10mm \/ 2 PCS","offer_id":52442830438674,"sku":"AdaahGLCDPJ00816x2","price":24.85,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 10mm \/ 5 PCS","offer_id":52442830471442,"sku":"AdaahGLCDPJ00816x5","price":55.88,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 12mm \/ 1 PCS","offer_id":52442830504210,"sku":"AdaahGLCDPJ00817x1","price":14.63,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 12mm \/ 2 PCS","offer_id":52442830536978,"sku":"AdaahGLCDPJ00817x2","price":24.85,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 12mm \/ 5 PCS","offer_id":52442830569746,"sku":"AdaahGLCDPJ00817x5","price":55.88,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 14mm \/ 1 PCS","offer_id":52442830602514,"sku":"AdaahDZ32646x1","price":14.57,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 14mm \/ 2 PCS","offer_id":52442830635282,"sku":"AdaahDZ32646x2","price":24.1,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 14mm \/ 5 PCS","offer_id":52442830668050,"sku":"AdaahDZ32646x5","price":53.98,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 15mm \/ 1 PCS","offer_id":52442830700818,"sku":"AdaahDZ32647x1","price":14.57,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 15mm \/ 2 PCS","offer_id":52442830733586,"sku":"AdaahDZ32647x2","price":24.1,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 15mm \/ 5 PCS","offer_id":52442830766354,"sku":"AdaahDZ32647x5","price":53.98,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 16mm \/ 1 PCS","offer_id":52442830799122,"sku":"AdaahDZ32648x1","price":14.57,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 16mm \/ 2 PCS","offer_id":52442830831890,"sku":"AdaahDZ32648x2","price":24.1,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 16mm \/ 5 PCS","offer_id":52442830864658,"sku":"AdaahDZ32648x5","price":53.98,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 17mm \/ 1 PCS","offer_id":52442830897426,"sku":"AdaahDZ32649x1","price":14.57,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 17mm \/ 2 PCS","offer_id":52442830930194,"sku":"AdaahDZ32649x2","price":24.1,"currency_code":"USD","in_stock":true},{"title":"1M 38T \/ 17mm \/ 5 PCS","offer_id":52442830962962,"sku":"AdaahDZ32649x5","price":53.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture2of8_c93688ce-cbca-4fee-a30f-e12fa3a4798f.jpg?v=1783614081","url":"https:\/\/homediyer.com\/products\/1-mod-38-teeth-blue-nylon-spur-gear-bore-6-17mm-pinion-plastic-gear-step","provider":"HomeDIYer","version":"1.0","type":"link"}