{"product_id":"module-2-5-nylon-bevel-gear-90-1-1-pairing-miter-gear-20t-25t-12-25mm-bore-blue","title":"Module 2.5 Nylon Bevel Gear 90° 1:1 Pairing Miter Gear 20T 25T 12-25mm Bore Blue","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eModule 2.5 Nylon Bevel Gear — Quiet 90° Power Transmission for Makers \u0026amp; Builders\u003c\/h2\u003e\n\u003cp\u003eWhen your drivetrain demands a smooth, near-silent 90° direction change without the weight penalty of metal, most off-the-shelf gears fall short. Makers, robotics enthusiasts, and light-industrial machine builders need a module 2.5 nylon bevel gear that pairs precisely, runs quietly, and resists moisture without constant lubrication.\u003c\/p\u003e\n\u003cp\u003eThese miter gears are machined from engineering-grade nylon (PA66) and finished in a distinctive blue color for easy identification. Each gear features a Module 2.5 tooth profile and is available in 20-tooth (20T) or 25-tooth (25T) configurations, with bore sizes ranging from 12 mm (0.47 in) to 25 mm (0.98 in) and matching keyways from 4 mm to 8 mm to lock securely onto your shaft.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include DIY CNC router axis drives requiring low-noise 90° bevel gear transmission, tabletop robotics joints needing lightweight nylon miter gear pairs, and small conveyor or agitator systems where a corrosion-resistant module 2.5 gear set extends service life in humid environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a 1:1 matched pair (20T×20T or 25T×25T). Both gears must share the same module (2.5) and tooth count for correct 90° mesh. Verify shaft diameter and keyway dimensions before ordering.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Module 2.5 Nylon Bevel Gears\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔇\u003c\/span\u003e \u003cstrong\u003eNear-Silent Operation\u003c\/strong\u003e\n\u003cp\u003eEngineering-grade nylon tooth flanks dampen vibration and reduce gear mesh noise compared to metal alternatives — ideal for noise-sensitive workshop and lab environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e💧\u003c\/span\u003e \u003cstrong\u003eCorrosion \u0026amp; Chemical Resistance\u003c\/strong\u003e\n\u003cp\u003ePA66 nylon resists moisture, mild acids, and common lubricants, making these bevel gears suitable for humid or lightly wet operating conditions without surface degradation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚖️\u003c\/span\u003e \u003cstrong\u003eLightweight Construction\u003c\/strong\u003e\n\u003cp\u003eNylon is significantly lighter than steel or brass, reducing rotational inertia and overall machine weight — a key advantage in robotics arms and portable equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e \u003cstrong\u003ePrecision 90° 1:1 Miter Pairing\u003c\/strong\u003e\n\u003cp\u003eEach gear is cut to Module 2.5 standards for accurate tooth engagement. The 1:1 ratio delivers equal speed and torque transfer across the 90° axis change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eKeyed Bore for Secure Shaft Mounting\u003c\/strong\u003e\n\u003cp\u003eBore options from 12 mm to 25 mm with matching keyways (4–8 mm) prevent shaft slippage under load, ensuring reliable torque transmission without set-screw-only mounting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔵\u003c\/span\u003e \u003cstrong\u003eColor-Coded Blue for Easy Identification\u003c\/strong\u003e\n\u003cp\u003eThe distinctive blue finish makes these nylon miter gears instantly recognizable in multi-component assemblies, simplifying maintenance checks and part replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Module 2.5 Nylon Bevel Gear\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\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\u003eColor \/ Finish\u003c\/th\u003e\n\u003ctd\u003eBlue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModule\u003c\/th\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTooth Count (Models)\u003c\/th\u003e\n\u003ctd\u003e20T \/ 25T\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 Ratio\u003c\/th\u003e\n\u003ctd\u003e1:1 (miter \/ bevel pair)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShaft Angle\u003c\/th\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter Range\u003c\/th\u003e\n\u003ctd\u003e12 mm – 25 mm (0.47 in – 0.98 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKeyway Width Range\u003c\/th\u003e\n\u003ctd\u003e4 mm – 8 mm (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (20T)\u003c\/th\u003e\n\u003ctd\u003eTypically 55–60 mm (2.17–2.36 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (25T)\u003c\/th\u003e\n\u003ctd\u003eTypically 68–73 mm (2.68–2.87 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003e-30°C to +100°C (-22°F to +212°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLubrication Required\u003c\/th\u003e\n\u003ctd\u003eNot required (self-lubricating nylon)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003e1 piece per order (pair both gears separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need to buy two gears to make a working 90° drive?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Each listing sells one gear. For a complete 1:1 miter drive you need two matching gears of the same tooth count (both 20T or both 25T). Add two units to your cart, selecting the correct bore size for each shaft.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right bore size and keyway?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure your shaft diameter with a caliper. Select the bore that matches your shaft (e.g., 16 mm shaft → 16 mm + 5 mm keyway variant). The keyway locks the gear rotationally; ensure your shaft has a matching keyway cut to the same width and depth.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the load capacity of these nylon bevel gears?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003ePA66 nylon gears are suited for light-to-medium duty applications — typically up to a few Nm of torque at moderate speeds (under 500 RPM). For heavy-duty or high-speed applications, consider steel or brass bevel gears instead. Contact us to confirm suitability for your specific load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these gears corrosion-resistant for outdoor or humid use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Nylon (PA66) naturally resists moisture, mild chemicals, and oxidation. These gears will not rust and require no lubrication, making them a reliable choice for humid workshops, aquaponics systems, or outdoor enclosures with light moisture exposure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use a 20T gear with a 25T gear for a speed ratio change?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eNo. Mixing 20T and 25T gears of the same module will result in incorrect tooth mesh geometry and premature wear. These are designed as matched miter pairs: 20T with 20T, or 25T with 25T, for a true 1:1 ratio at 90°.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo these gears need lubrication during operation?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eNo lubrication is required. Nylon is inherently self-lubricating, which reduces maintenance and eliminates the risk of lubricant contamination in food-adjacent or clean-room adjacent DIY builds. A light application of dry PTFE spray can extend life in high-cycle applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat shaft-to-bore tolerance should I expect?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe bore is machined to a standard H7 tolerance, suitable for a sliding fit on a correctly sized shaft. If you need a tighter interference fit, consult a machinist to lightly ream the bore. Always verify your shaft is within tolerance before assembly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your Module (20T or 25T) and Bore Size above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"Module 2.5【20 Tooth】 \/ 12mm + 4mm Keyway \/ 1 pcs","offer_id":52439251484946,"sku":"PENGJGJXCD3307x1","price":21.34,"currency_code":"USD","in_stock":true},{"title":"Module 2.5【20 Tooth】 \/ 14mm + 5mm Keyway \/ 1 pcs","offer_id":52439251517714,"sku":"PENGJGJXCD3308x1","price":21.34,"currency_code":"USD","in_stock":true},{"title":"Module 2.5【20 Tooth】 \/ 15mm + 5mm Keyway \/ 1 pcs","offer_id":52439251550482,"sku":"PENGJGJXCD3309x1","price":21.34,"currency_code":"USD","in_stock":true},{"title":"Module 2.5【20 Tooth】 \/ 16mm + 5mm Keyway \/ 1 pcs","offer_id":52439251583250,"sku":"PENGJGJXCD3310x1","price":21.34,"currency_code":"USD","in_stock":true},{"title":"Module 2.5【20 Tooth】 \/ 18mm + 6mm Keyway \/ 1 pcs","offer_id":52439251616018,"sku":"PENGJGJXCD3311x1","price":21.34,"currency_code":"USD","in_stock":true},{"title":"Module 2.5【20 Tooth】 \/ 20mm + 6mm Keyway \/ 1 pcs","offer_id":52439251648786,"sku":"PENGJGJXCD3312x1","price":21.34,"currency_code":"USD","in_stock":true},{"title":"Module 2.5【25 Tooth】 \/ 16mm + 5mm Keyway \/ 1 pcs","offer_id":52439251681554,"sku":"PENGJGJXCD3313x1","price":25.55,"currency_code":"USD","in_stock":true},{"title":"Module 2.5【25 Tooth】 \/ 17mm + 5mm Keyway \/ 1 pcs","offer_id":52439251714322,"sku":"PENGJGJXCD3314x1","price":25.55,"currency_code":"USD","in_stock":true},{"title":"Module 2.5【25 Tooth】 \/ 18mm + 6mm Keyway \/ 1 pcs","offer_id":52439251747090,"sku":"PENGJGJXCD3315x1","price":25.55,"currency_code":"USD","in_stock":true},{"title":"Module 2.5【25 Tooth】 \/ 20mm + 6mm Keyway \/ 1 pcs","offer_id":52439251779858,"sku":"PENGJGJXCD3316x1","price":25.55,"currency_code":"USD","in_stock":true},{"title":"Module 2.5【25 Tooth】 \/ 22mm + 6mm Keyway \/ 1 pcs","offer_id":52439251812626,"sku":"PENGJGJXCD3317x1","price":25.55,"currency_code":"USD","in_stock":true},{"title":"Module 2.5【25 Tooth】 \/ 24mm + 8mm Keyway \/ 1 pcs","offer_id":52439251845394,"sku":"PENGJGJXCD3318x1","price":25.55,"currency_code":"USD","in_stock":true},{"title":"Module 2.5【25 Tooth】 \/ 25mm + 8mm Keyway \/ 1 pcs","offer_id":52439251878162,"sku":"PENGJGJXCD3319x1","price":25.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-06_746a7cb9-7d9f-4916-956c-67d8985a8ebb.jpg?v=1782918396","url":"https:\/\/homediyer.com\/products\/module-2-5-nylon-bevel-gear-90-1-1-pairing-miter-gear-20t-25t-12-25mm-bore-blue","provider":"HomeDIYer","version":"1.0","type":"link"}