{"product_id":"2-mod-spur-gear-plastic-nylon-gear-12t-50t-teeth-transmission-gear-for-cnc-motor","title":"2 Mod Spur Gear Plastic Nylon Gear 10T-50T Teeth Transmission Gear for CNC Motor","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003e2 Mod Nylon Spur Gear — Reliable Transmission for CNC Motors \u0026amp; DIY Automation\u003c\/h2\u003e\n    \u003cp\u003eWhen a stripped or mismatched gear brings your CNC router, 3D printer, or robotics project to a halt, finding an exact-spec replacement fast is critical. These Module 2 plastic nylon spur gears are designed for makers, hobbyists, and small-workshop engineers who need a dependable, low-noise transmission component without the weight or corrosion risk of metal alternatives.\u003c\/p\u003e\n    \u003cp\u003eEach gear is machined from engineering-grade nylon (PA66), offering a good balance of rigidity and impact absorption. The module (pitch) is 2 mm, with tooth counts ranging from 12T to 50T (outer diameter approximately 28 mm–104 mm \/ 1.1\"–4.1\"). Bore diameter varies by tooth count — see variant options for exact bore dimensions. The gear face width is typically 10–15 mm (0.39\"–0.59\").\u003c\/p\u003e\n    \u003cp\u003eTypical use cases include CNC motor drive trains requiring lightweight gear reduction, robotics arm joints and servo transmission assemblies, and DIY automation conveyor or indexing mechanisms where low-noise plastic gearing outperforms metal in noise-sensitive environments.\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 2 (Mod 2) standard. Meshes with any Mod 2 spur or rack gear. Verify bore diameter and face width against your shaft and housing before ordering.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-features\"\u003e\n    \u003ch2\u003e✅ Key Features of These 2 Mod 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\u003eModule 2 Standard Pitch\u003c\/strong\u003e — Fully interchangeable with any Mod 2 gear rack, pinion, or mating spur gear for straightforward drop-in replacement or new builds.\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🪶\u003c\/span\u003e\n        \u003cstrong\u003eLightweight Nylon Construction\u003c\/strong\u003e — Engineering-grade PA66 nylon reduces rotational inertia compared to metal gears, easing load on stepper and servo motors in CNC and robotics applications.\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔇\u003c\/span\u003e\n        \u003cstrong\u003eLow-Noise Operation\u003c\/strong\u003e — Nylon-on-nylon or nylon-on-metal meshing significantly dampens gear noise and vibration, making these gears well-suited for noise-sensitive workshop or lab environments.\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\n        \u003cstrong\u003eCorrosion-Resistant Material\u003c\/strong\u003e — Unlike steel gears, nylon does not rust or oxidize, making these gears suitable for humid environments or applications where lubrication is minimal.\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n        \u003cstrong\u003eWide Tooth Count Range (12T–50T)\u003c\/strong\u003e — Choose from 29 tooth-count variants to dial in your exact gear ratio for speed reduction or torque multiplication in your drive system.\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\n        \u003cstrong\u003eSold Individually (1 PCS per Order)\u003c\/strong\u003e — Each listing ships one gear of your selected tooth count, letting you order exactly the quantity your project requires without overstocking.\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 2 Nylon Spur Gear\u003c\/h2\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eModule (Pitch)\u003c\/th\u003e\n\u003ctd\u003e2 mm (Mod 2)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTooth Count\u003c\/th\u003e\n\u003ctd\u003e12T – 50T (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eEngineering-grade nylon (PA66)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eOuter Diameter\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\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eFace Width\u003c\/th\u003e\n\u003ctd\u003eTypically 10–15 mm (0.39\"–0.59\")\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\u003eFinish \/ Color\u003c\/th\u003e\n\u003ctd\u003eNatural nylon (off-white \/ beige)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePacking Quantity\u003c\/th\u003e\n\u003ctd\u003e1 PCS per order\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eCompatible Gear Type\u003c\/th\u003e\n\u003ctd\u003eMod 2 spur gear, Mod 2 rack\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTypical Applications\u003c\/th\u003e\n\u003ctd\u003eCNC motor drives, robotics, DIY automation\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 right tooth count for my project?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYour gear ratio is determined by dividing the tooth count of the driven gear by the tooth count of the driving gear. For example, pairing a 12T pinion with a 36T gear gives a 3:1 reduction — tripling torque while reducing speed to one-third. Select tooth counts based on the speed and torque requirements of your CNC motor or servo application.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is Module 2 and will it mesh with my existing gears?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eModule (Mod) is the standardized metric pitch system for gears. Two gears mesh correctly only when they share the same module and pressure angle. These gears are Mod 2 with a 20° pressure angle. They will mesh with any other Mod 2 spur gear or Mod 2 rack regardless of tooth count, as long as the face widths are compatible.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow strong are nylon gears compared to metal gears?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eNylon (PA66) gears offer good tensile strength for light-to-medium duty applications such as CNC routers, 3D printers, and small robotics. They are not recommended for high-torque industrial drives or applications with sustained heavy shock loads. For those scenarios, consider metal (aluminum or steel) Mod 2 gears instead. Nylon's advantage is its self-lubricating surface, low noise, and corrosion resistance.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these gears corrosion-resistant? Can I use them in humid environments?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. PA66 nylon does not rust or oxidize, making these gears suitable for humid workshops, outdoor enclosures, or applications where applying grease or oil is impractical. Note that prolonged exposure to water can cause slight dimensional swelling in nylon; for fully submerged or wet environments, verify dimensional tolerances after moisture absorption.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat bore diameter does each gear have? Can I re-bore it to fit my shaft?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eBore diameter varies by tooth count — please refer to the variant options or contact us to confirm the bore size for your selected tooth count before ordering. Nylon gears can generally be re-bored or reamed to a larger diameter using standard machining tools, provided sufficient hub wall thickness remains. Do not re-bore beyond the recommended maximum for your tooth count.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eDo I need to lubricate these nylon gears?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eNylon is inherently self-lubricating at light-to-moderate loads, so these gears can run dry in many CNC and robotics applications. For higher-speed or higher-load use, a light application of white lithium grease or PTFE-based lubricant can extend service life and reduce wear. Avoid petroleum-based oils that may degrade nylon over time.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow many gears come in one order? Can I buy in bulk?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eEach order ships 1 piece (1 PCS) of your selected tooth count. To purchase multiple gears, simply increase the quantity at checkout or place separate orders for different tooth counts. If you need larger bulk quantities for a workshop or production run, please contact us directly for volume pricing.\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 tooth count (Model) 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 the right tooth count for my project?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Your gear ratio is determined by dividing the tooth count of the driven gear by the tooth count of the driving gear. For example, pairing a 12T pinion with a 36T gear gives a 3:1 reduction — tripling torque while reducing speed to one-third. Select tooth counts based on the speed and torque requirements of your CNC motor or servo application.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is Module 2 and will it mesh with my existing gears?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Module (Mod) is the standardized metric pitch system for gears. Two gears mesh correctly only when they share the same module and pressure angle. These gears are Mod 2 with a 20° pressure angle. They will mesh with any other Mod 2 spur gear or Mod 2 rack regardless of tooth count, as long as the face widths are compatible.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How strong are nylon gears compared to metal gears?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Nylon (PA66) gears offer good tensile strength for light-to-medium duty applications such as CNC routers, 3D printers, and small robotics. They are not recommended for high-torque industrial drives or applications with sustained heavy shock loads. Nylon's advantage is its self-lubricating surface, low noise, and corrosion resistance.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these gears corrosion-resistant? Can I use them in humid environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. PA66 nylon does not rust or oxidize, making these gears suitable for humid workshops, outdoor enclosures, or applications where applying grease or oil is impractical. Note that prolonged exposure to water can cause slight dimensional swelling in nylon.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What bore diameter does each gear have? Can I re-bore it to fit my shaft?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Bore diameter varies by tooth count — please refer to the variant options or contact us to confirm the bore size for your selected tooth count before ordering. Nylon gears can generally be re-bored or reamed to a larger diameter using standard machining tools.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do I need to lubricate these nylon gears?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Nylon is inherently self-lubricating at light-to-moderate loads, so these gears can run dry in many CNC and robotics applications. For higher-speed or higher-load use, a light application of white lithium grease or PTFE-based lubricant can extend service life.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many gears come in one order? Can I buy in bulk?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Each order ships 1 piece (1 PCS) of your selected tooth count. To purchase multiple gears, simply increase the quantity at checkout or place separate orders for different tooth counts. 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