{"product_id":"modulus-0-2-brass-worm-gear-set-90-degree-reduction-rc-diy-model-car","title":"Modulus 0.2 Brass Worm Gear Set 90° Reduction for RC DIY Models","description":"\n\u003ch2\u003e5-Set Modulus 0.2 Brass Worm Gear Set – 90° Reduction Transmission for RC \u0026amp; DIY Models\u003c\/h2\u003e\n\u003cp\u003eUpgrade your RC car, DIY robot, or miniature model build with these precision-cast brass worm gears. Each set includes a matched worm and gear pair engineered for smooth 90-degree power transmission and efficient speed reduction — perfect for tight-space drivetrains where accuracy and reliability matter most.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose These Worm Gears?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Brass Construction:\u003c\/strong\u003e Durable, low-friction copper alloy ensures long-lasting performance and smooth meshing under continuous operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision Casting:\u003c\/strong\u003e Tight tolerances on every tooth profile for consistent, backlash-minimized transmission.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e90-Degree Drive Angle:\u003c\/strong\u003e Ideal for redirecting drive shafts in RC cars, servo linkages, and custom model mechanisms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Variants Available:\u003c\/strong\u003e Choose the bore and tooth count that fits your specific shaft and gear ratio requirements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5 Complete Sets per Order:\u003c\/strong\u003e Includes 5 worms + 5 gears — great for prototyping or stocking spares.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background:#f4f4f4;\"\u003e\n      \u003cth style=\"border:1px solid #ddd; padding:8px;\"\u003eVariant\u003c\/th\u003e\n      \u003cth style=\"border:1px solid #ddd; padding:8px;\"\u003eModulus\u003c\/th\u003e\n      \u003cth style=\"border:1px solid #ddd; padding:8px;\"\u003eTeeth\u003c\/th\u003e\n      \u003cth style=\"border:1px solid #ddd; padding:8px;\"\u003eWorm Hole Ø\u003c\/th\u003e\n      \u003cth style=\"border:1px solid #ddd; padding:8px;\"\u003eGear Hole Ø\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2M 12T\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e12T\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e1 mm\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e1 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#f9f9f9;\"\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2M 15T (0.8\/1)\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e15T\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.8 mm\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e1 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2M 15T (1\/1)\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e15T\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e1 mm\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e1 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#f9f9f9;\"\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2M 15T (2\/1)\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e15T\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e2 mm\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e1 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2M 20T (1\/1)\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e20T\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e1 mm\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e1 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#f9f9f9;\"\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2M 20T (2\/1)\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e20T\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e2 mm\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e1 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2M 20T (1\/2)\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e20T\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e1 mm\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e2 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#f9f9f9;\"\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2M 30T (0.8\/3)\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.2\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e30T\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0.8 mm\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e3 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e5 × Worm\u003c\/li\u003e\n  \u003cli\u003e5 × Gear\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e These are mini, custom-sized precision parts. Due to their specialized nature, please allow a little extra time for fulfillment — your patience is greatly appreciated.\u003c\/p\u003e\n\n\u003ch3\u003eGreat Pairings for Your Workshop\u003c\/h3\u003e\n\u003cp\u003eBuilding or repairing a model vehicle? Check out these handy tools from our store:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-in-1-multi-functional-bone-wrench-hex-socket-spanner-portable-repair-hand-tool-for-bicycle-motorcycle-furniture-assembly\"\u003e10 in 1 Multi-Functional Bone Wrench Hex Socket Spanner – Portable Repair Hand Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/16-in-1-multi-function-bike-repair-tool-portable-folding-hex-wrench-set-for-bicycle-motorcycle-furniture-maintenance-hand-tools\"\u003e16 in 1 Multi-Function Bike Repair Tool – Portable Folding Hex Wrench Set\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/3-in-1-precision-eyeglass-screwdriver-keychain-portable-mini-screwdriver-for-glasses-watch-spectacles-repair-hand-tool\"\u003e3-in-1 Precision Eyeglass Screwdriver Keychain – Portable Mini Screwdriver\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What material are these worm gears made from?\u003c\/h4\u003e\n\u003cp\u003eA: These worm gears are precision-cast from brass (copper alloy), which offers excellent durability, low friction, and smooth meshing — ideal for miniature RC car and DIY model transmissions.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What does \"Modulus 0.2\" mean for these gears?\u003c\/h4\u003e\n\u003cp\u003eA: Modulus (M) is a standardized measure of gear tooth size. A modulus of 0.2 indicates very fine, small teeth suited to miniature drivetrains found in RC cars, micro robots, and precision DIY models. Always match the modulus of your worm and gear pair for proper meshing.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I choose the right variant for my project?\u003c\/h4\u003e\n\u003cp\u003eA: Select a variant based on (1) the number of teeth (12T, 15T, 20T, or 30T) for your desired gear ratio, and (2) the worm hole and gear hole diameters that match your existing shaft sizes. The table above lists all available bore combinations to help you find the perfect fit.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is included in each order?\u003c\/h4\u003e\n\u003cp\u003eA: Each order includes 5 sets — that's 5 worm pieces and 5 matching gear pieces — giving you multiple sets for prototyping, replacement, or multi-axis builds.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What material are these worm gears made from?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These worm gears are precision-cast from brass (copper alloy), which offers excellent durability, low friction, and smooth meshing — ideal for miniature RC car and DIY model transmissions.\"}}, {\"@type\": \"Question\", \"name\": \"What does \\\"Modulus 0.2\\\" mean for these gears?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Modulus (M) is a standardized measure of gear tooth size. 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