{"product_id":"0-5m-brass-worm-gear-reducer-copper-worm-wheel-gearbox-15-60-teeth","title":"0.5M Brass Worm Gear Reducer – 15–60 Teeth, 2–6mm Bore","description":"\u003ch2\u003e0.5M Precision Brass Worm Gear Reducer – Micro Copper Worm Wheel Gearbox\u003c\/h2\u003e\n\u003cp\u003eUpgrade your DIY motors and mechanical projects with this precision-engineered \u003cstrong\u003e0.5 Module Brass Worm Gear Reducer\u003c\/strong\u003e. Machined from high-quality copper, this micro worm wheel delivers smooth, reliable 90-degree reduction transmission — ideal for robotics, automation, model-making, small motors, and custom gear assemblies.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModule:\u003c\/strong\u003e 0.5M – precision micro sizing for compact builds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-quality copper\/brass worm wheel for durability and smooth meshing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable Tooth Counts:\u003c\/strong\u003e 15, 20, 25, 30, 40, 50, and 60 teeth\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable Bore Sizes:\u003c\/strong\u003e 2mm, 3mm, 4mm, 5mm, and 6mm inner hole diameters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGear Type:\u003c\/strong\u003e Enveloping (non-straight helical) worm gear for maximum contact and torque transfer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e External gear mount\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e90° Reduction Transmission:\u003c\/strong\u003e Any copper worm + any worm wheel in this series can be paired to form a complete 90-degree reduction drive set\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDeceleration Ratio:\u003c\/strong\u003e Equal to the number of teeth on the worm wheel (e.g., 30-tooth wheel = 30:1 ratio)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModule:\u003c\/strong\u003e 0.5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWheel Material:\u003c\/strong\u003e Copper (Brass)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGear Shape:\u003c\/strong\u003e Worm gear (enveloping)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Outer Diameter Formula:\u003c\/strong\u003e 0.5 × (Number of Teeth + 2) mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTooth Options:\u003c\/strong\u003e 15 \/ 20 \/ 25 \/ 30 \/ 40 \/ 50 \/ 60\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Options:\u003c\/strong\u003e 2 \/ 3 \/ 4 \/ 5 \/ 6 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e External gear\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003cp\u003eThe worm gear operates as an enveloping (non-straight helical) worm gear, which maximises the contact surface between the worm and the wheel for improved torque and efficiency. The deceleration ratio is simply equal to the number of teeth on the worm wheel — making gear ratio selection straightforward and predictable for your design.\u003c\/p\u003e\n\u003cp\u003eTo determine the maximum outer diameter of your wheel: \u003cstrong\u003eMax OD (mm) = 0.5 × (Number of Teeth + 2)\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSmall DC motors and stepper motor drives\u003c\/li\u003e\n  \u003cli\u003eRobotics and automation projects\u003c\/li\u003e\n  \u003cli\u003eScale model mechanisms\u003c\/li\u003e\n  \u003cli\u003eDIY CNC machines and 3D printer components\u003c\/li\u003e\n  \u003cli\u003eHobby electronics and custom gearbox builds\u003c\/li\u003e\n  \u003cli\u003eCamera sliders, turntables, and rotary assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\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 – Mini Screwdriver for Repair\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Can I pair any worm wheel tooth count with any worm in this 0.5M series?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! Any copper worm from this 0.5M series can be paired with any worm wheel in the same series to create a complete 90-degree reduction drive set. The deceleration ratio will equal the number of teeth on the selected worm wheel (e.g., a 40-tooth worm wheel gives a 40:1 reduction ratio).\u003c\/p\u003e\n\u003ch4\u003eQ: How do I calculate the outer diameter of the worm wheel I need?\u003c\/h4\u003e\n\u003cp\u003eA: The maximum outer diameter is calculated using the formula: \u003cstrong\u003eMax OD (mm) = 0.5 × (Number of Teeth + 2)\u003c\/strong\u003e. For example, a 30-tooth wheel has a maximum outer diameter of 0.5 × (30 + 2) = 16mm.\u003c\/p\u003e\n\u003ch4\u003eQ: What bore size should I choose for my motor shaft?\u003c\/h4\u003e\n\u003cp\u003eA: Measure your motor shaft diameter carefully. This 0.5M brass worm wheel is available in 2mm, 3mm, 4mm, 5mm, and 6mm bore sizes. Select the bore that matches your motor shaft for a secure, precise fit — a loose bore may require additional securing with a set screw or adhesive.\u003c\/p\u003e\n\u003ch4\u003eQ: What is this worm gear reducer used for?\u003c\/h4\u003e\n\u003cp\u003eA: This micro brass worm gear reducer is ideal for robotics, DIY automation, small motor drives, model-making, CNC hobby machines, camera sliders, turntables, and any project requiring compact 90-degree gear reduction with a precise deceleration ratio.\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\": \"Can I pair any worm wheel tooth count with any worm in this 0.5M series?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! Any copper worm from this 0.5M series can be paired with any worm wheel in the same series to create a complete 90-degree reduction drive set. The deceleration ratio will equal the number of teeth on the selected worm wheel (e.g., a 40-tooth worm wheel gives a 40:1 reduction ratio).\"}}, {\"@type\": \"Question\", \"name\": \"How do I calculate the outer diameter of the worm wheel I need?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The maximum outer diameter is calculated using the formula: Max OD (mm) = 0.5 × (Number of Teeth + 2). For example, a 30-tooth wheel has a maximum outer diameter of 0.5 × (30 + 2) = 16mm.\"}}, {\"@type\": \"Question\", \"name\": \"What bore size should I choose for my motor shaft?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Measure your motor shaft diameter carefully. This 0.5M brass worm wheel is available in 2mm, 3mm, 4mm, 5mm, and 6mm bore sizes. 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