{"product_id":"1-mod-48-teeth-blue-nylon-spur-gear-bore-6mm-25mm-pinion-plastic-gear-with-step","title":"1 Mod 48 Teeth Blue Nylon Spur Gear Bore 6mm-25mm Pinion Plastic Gear with Step","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e1 Mod 48-Tooth Blue Nylon Spur Gear — Lightweight Pinion Gear with Stepped Bore for Precision Drives\u003c\/h2\u003e\n\u003cp\u003eWhen your motion system demands a quiet, corrosion-resistant pinion gear that fits a wide range of shaft diameters without custom machining, sourcing the right plastic spur gear becomes a real challenge. Hobbyists building 3D printers, robotics engineers prototyping drive trains, and makers designing compact automation rigs all need a reliable 1 mod gear that installs cleanly and runs smoothly — this 1 Mod 48-tooth blue nylon spur gear with stepped bore is engineered for exactly that use case.\u003c\/p\u003e\n\u003cp\u003eEach gear is machined from engineering-grade nylon (PA66), delivering a balance of mechanical strength, low friction, and electrical insulation. The stepped bore design accommodates shaft diameters from 6 mm (0.24 in) to 25 mm (0.98 in), with a finished outer diameter of approximately 50 mm (1.97 in) and a face width typically in the 10–15 mm (0.39–0.59 in) range. The distinctive blue color aids visual identification in multi-gear assemblies.\u003c\/p\u003e\n\u003cp\u003eTypical applications include 1 mod gear rack and pinion systems for CNC router axes, lightweight spur gear drives in desktop robotic arms, and low-noise transmission stages in 3D printer extruder or Z-axis assemblies where metal gears would introduce unwanted vibration or electrical conductivity risks.\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 Module 1 (1M) standard tooth profile — meshes with any 1 Mod rack, pinion, or mating spur gear. Bore options: 6 \/ 8 \/ 10 \/ 12 \/ 14 \/ 15 \/ 16 \/ 17 \/ 18 \/ 19 \/ 20 \/ 22 \/ 24 \/ 25 mm.\n\u003c\/div\u003e\n\n\u003ch2\u003e✅ Key Features of These 1 Mod 48-Tooth 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 Nylon (PA66)\u003c\/strong\u003e\n\u003cp\u003eMachined from PA66 nylon for a strong strength-to-weight ratio, inherent lubricity, and resistance to oils and mild chemicals — no additional lubrication required for most light-duty applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e📐\u003c\/div\u003e\n\u003cstrong\u003eModule 1 — 48-Tooth Profile\u003c\/strong\u003e\n\u003cp\u003eStandard 1M tooth geometry ensures accurate meshing with any Module 1 rack or mating gear. 48 teeth deliver a smooth, fine-pitch transmission suitable for low-to-medium torque drives.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e🔩\u003c\/div\u003e\n\u003cstrong\u003eStepped Bore — 14 Shaft Sizes\u003c\/strong\u003e\n\u003cp\u003eThe stepped bore accommodates shafts from 6 mm to 25 mm (0.24–0.98 in), eliminating the need for custom boring. Select your exact bore diameter from the variant options above.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e🔇\u003c\/div\u003e\n\u003cstrong\u003eLow-Noise, Vibration-Damping Operation\u003c\/strong\u003e\n\u003cp\u003eNylon's natural damping properties reduce gear noise and absorb minor misalignment shock — ideal for desktop machines, robotics, and any application where quiet operation matters.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e⚡\u003c\/div\u003e\n\u003cstrong\u003eElectrically Non-Conductive\u003c\/strong\u003e\n\u003cp\u003ePA66 nylon is an electrical insulator, making these gears safe for use in electronics-adjacent assemblies, servo-driven systems, and environments where metal gears could create short-circuit risks.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e🛡️\u003c\/div\u003e\n\u003cstrong\u003eCorrosion-Resistant — No Rust, No Coating Required\u003c\/strong\u003e\n\u003cp\u003eUnlike steel or cast-iron gears, nylon does not rust or oxidize. These gears maintain dimensional stability in humid workshop environments and light outdoor enclosures without any surface treatment.\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 (Module 1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Teeth\u003c\/th\u003e\n\u003ctd\u003e48T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePitch Diameter\u003c\/th\u003e\n\u003ctd\u003e48 mm (1.89 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (approx.)\u003c\/th\u003e\n\u003ctd\u003e~50 mm (~1.97 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\u003e6 \/ 8 \/ 10 \/ 12 \/ 14 \/ 15 \/ 16 \/ 17 \/ 18 \/ 19 \/ 20 \/ 22 \/ 24 \/ 25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Type\u003c\/th\u003e\n\u003ctd\u003eStepped bore (no keyway)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePA66 Nylon\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\u003eTooth Profile\u003c\/th\u003e\n\u003ctd\u003eInvolute spur\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\u003ctr\u003e\n\u003cth\u003ePacking\u003c\/th\u003e\n\u003ctd\u003e1 PCS per unit\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 correct bore diameter for my shaft?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMeasure your shaft's outer diameter with a caliper. Select the bore option that matches exactly — for example, if your shaft is 10 mm, choose the 10 mm bore variant. The stepped bore is precision-machined to a close tolerance fit. If your shaft diameter falls between listed sizes, contact us to confirm the best option.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the maximum torque this nylon spur gear can handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003ePA66 nylon gears are suited for light-to-medium torque applications. At Module 1 with 48 teeth, these gears are typically used in drives up to approximately 1–3 Nm depending on speed and operating temperature. For high-torque or continuous-duty industrial applications, a metal gear would be more appropriate.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eIs this gear compatible with metal Module 1 gears and racks?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. This gear follows the standard Module 1 involute tooth profile with a 20° pressure angle, so it meshes correctly with any 1M metal or plastic rack, pinion, or mating spur gear. Running a nylon gear against a metal counterpart is a common pairing that reduces wear on the softer nylon gear while protecting the metal component.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eDoes nylon absorb moisture, and will that affect gear dimensions?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003ePA66 nylon does absorb a small amount of ambient moisture, which can cause minor dimensional changes (typically \u0026lt;0.5% linear). For most workshop and indoor robotics applications this is negligible. If your application requires tight dimensional stability in high-humidity environments, store gears in a sealed bag until installation and allow them to equilibrate before use.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eDo I need to lubricate these plastic gears?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eNylon has inherent self-lubricating properties, so many light-duty applications run dry without issue. For higher speeds or loads, a light application of PTFE-based or silicone grease (avoid petroleum-based greases that can degrade nylon) will extend service life and reduce operating temperature.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between this gear and a metal spur gear of the same module?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eNylon spur gears are lighter, quieter, corrosion-resistant, and electrically non-conductive compared to steel or aluminum equivalents. The trade-off is lower load capacity and reduced heat resistance (nylon softens above ~120°C \/ 248°F). Choose nylon for low-noise, lightweight, or electrically sensitive applications; choose metal for high-torque or high-temperature environments.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this gear in a 3D printer or CNC machine?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes — 1 Mod 48-tooth nylon spur gears are widely used in 3D printer extruder drives, Z-axis lead screw couplings, and CNC router rack-and-pinion axis systems. The low noise and self-lubricating properties make them a practical choice for desktop fabrication equipment running at moderate speeds.\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 diameter and Packing QTY above, then add to cart.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"1M 48T \/ 6mm \/ 1 PCS","offer_id":52442822934802,"sku":"AdaahGLCDPJ01022x1","price":27.43,"currency_code":"USD","in_stock":true},{"title":"1M 48T \/ 8mm \/ 1 PCS","offer_id":52442822967570,"sku":"AdaahGLCDPJ01023x1","price":27.43,"currency_code":"USD","in_stock":true},{"title":"1M 48T \/ 10mm \/ 1 PCS","offer_id":52442823000338,"sku":"AdaahGLCDPJ01024x1","price":27.43,"currency_code":"USD","in_stock":true},{"title":"1M 48T \/ 12mm \/ 1 PCS","offer_id":52442823033106,"sku":"AdaahGLCDPJ01025x1","price":27.43,"currency_code":"USD","in_stock":true},{"title":"1M 48T \/ 14mm \/ 1 PCS","offer_id":52442823065874,"sku":"AdaahGLCDPJ01026x1","price":27.43,"currency_code":"USD","in_stock":true},{"title":"1M 48T \/ 15mm \/ 1 PCS","offer_id":52442823098642,"sku":"AdaahGLCDPJ01027x1","price":27.43,"currency_code":"USD","in_stock":true},{"title":"1M 48T \/ 16mm \/ 1 PCS","offer_id":52442823131410,"sku":"AdaahGLCDPJ01028x1","price":27.43,"currency_code":"USD","in_stock":true},{"title":"1M 48T \/ 17mm \/ 1 PCS","offer_id":52442823164178,"sku":"AdaahGLCDPJ01029x1","price":27.43,"currency_code":"USD","in_stock":true},{"title":"1M 48T \/ 18mm \/ 1 PCS","offer_id":52442823196946,"sku":"AdaahGLCDPJ01030x1","price":27.43,"currency_code":"USD","in_stock":true},{"title":"1M 48T \/ 19mm \/ 1 PCS","offer_id":52442823229714,"sku":"AdaahGLCDPJ01031x1","price":27.43,"currency_code":"USD","in_stock":true},{"title":"1M 48T \/ 20mm \/ 1 PCS","offer_id":52442823262482,"sku":"AdaahGLCDPJ01032x1","price":27.43,"currency_code":"USD","in_stock":true},{"title":"1M 48T \/ 22mm \/ 1 PCS","offer_id":52442823295250,"sku":"AdaahDZ32659x1","price":26.76,"currency_code":"USD","in_stock":true},{"title":"1M 48T \/ 24mm \/ 1 PCS","offer_id":52442823328018,"sku":"AdaahDZ32660x1","price":26.76,"currency_code":"USD","in_stock":true},{"title":"1M 48T \/ 25mm \/ 1 PCS","offer_id":52442823360786,"sku":"AdaahDZ32661x1","price":26.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture2of8_62715cae-4ede-4dde-a775-bdb8d997bf40.jpg?v=1783608954","url":"https:\/\/homediyer.com\/products\/1-mod-48-teeth-blue-nylon-spur-gear-bore-6mm-25mm-pinion-plastic-gear-with-step","provider":"HomeDIYer","version":"1.0","type":"link"}