{"product_id":"1-5-modulus-bevel-gears-1-2-ratio-90-degree-c45-steel","title":"1 Pair 1.5 Modulus Bevel Gears Combination 1:2 Pairing 90° 15T to 40T C45 Steel","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003e1.5 Modulus Bevel Gears — Precise 1:2 Ratio Power Transmission at 90°\u003c\/h2\u003e\n    \u003cp\u003eWhen a misaligned drive shaft kills your project timeline, the culprit is almost always an undersized or poorly matched gear set. Engineers, robotics builders, and hands-on DIYers who need reliable 90° power redirection without custom machining will find this paired bevel gear set a direct solution — sold as a matched pair, ready to mesh straight out of the box.\u003c\/p\u003e\n    \u003cp\u003eEach set consists of two C45 medium-carbon steel bevel gears machined to a 1.5 modulus with a fixed 1:2 tooth ratio (pinion + wheel). Available tooth combinations range from 15T+30T to 20T+40T, covering shaft diameters typically from 6 mm to 12 mm (approx. 0.24″ to 0.47″). The 90° mesh angle is held to standard bevel gear geometry for smooth, low-backlash engagement.\u003c\/p\u003e\n    \u003cp\u003eTypical applications include DIY gearbox builds requiring a 2:1 speed reduction, small CNC axis drives needing a right-angle transmission, and robotics joint assemblies where compact 90° torque transfer is critical. Long-tail use cases: replacement bevel gear set for RC crawler differentials, custom lathe cross-slide drives, and educational gear-train demonstration kits.\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 Designed for 1.5 modulus gear systems with 90° shaft intersection. Verify bore diameter and keyway requirements against your shaft spec before ordering.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-features\"\u003e\n    \u003ch2\u003e✅ Key Features of These 1.5 Modulus Bevel Gears\u003c\/h2\u003e\n    \u003cdiv class=\"hdiy-list\"\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n        \u003cstrong\u003eMatched Pair, Ready to Mesh\u003c\/strong\u003e\n        \u003cp\u003eSold as a pinion + wheel set in a fixed 1:2 tooth ratio — no separate sourcing or pairing guesswork required.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n        \u003cstrong\u003e90° Shaft Intersection Angle\u003c\/strong\u003e\n        \u003cp\u003eStandard bevel geometry ensures correct tooth contact and smooth torque transfer between perpendicular shafts.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\n        \u003cstrong\u003e1.5 Modulus Precision Cut\u003c\/strong\u003e\n        \u003cp\u003eConsistent modulus across the pair guarantees proper mesh depth and minimizes backlash in your drive train.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\n        \u003cstrong\u003eC45 Medium-Carbon Steel Construction\u003c\/strong\u003e\n        \u003cp\u003eC45 steel offers a solid balance of machinability and load-bearing strength, suitable for moderate-duty mechanical drives.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\n        \u003cstrong\u003eMultiple Tooth Count Options\u003c\/strong\u003e\n        \u003cp\u003eChoose from 15T+30T, 16T+32T, 18T+36T, or 20T+40T combinations to match your shaft size and torque requirements.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\n        \u003cstrong\u003eBroad Application Range\u003c\/strong\u003e\n        \u003cp\u003eFits DIY gearboxes, robotics joints, CNC axis drives, and educational gear-train assemblies requiring a 2:1 reduction at 90°.\u003c\/p\u003e\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 — 1.5 Modulus Bevel Gears\u003c\/h2\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eModulus\u003c\/th\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eGear Ratio\u003c\/th\u003e\n\u003ctd\u003e1:2\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMesh Angle\u003c\/th\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eC45 Medium-Carbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTooth Combinations\u003c\/th\u003e\n\u003ctd\u003e15T+30T \/ 16T+32T \/ 18T+36T \/ 20T+40T\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\u003eKeyway\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eQuantity per Set\u003c\/th\u003e\n\u003ctd\u003e1 Pair (Pinion + Wheel)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWeight per Set\u003c\/th\u003e\n\u003ctd\u003eSee variant options\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 combination for my application?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eSelect based on your required shaft diameter and available space. Larger tooth counts (e.g., 20T+40T) generally suit larger shaft bores and higher torque loads, while smaller counts (15T+30T) fit compact assemblies. All options maintain the same 1:2 ratio and 1.5 modulus — check the bore diameter spec for your specific variant before ordering.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat load capacity can these bevel gears handle?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eC45 steel bevel gears at 1.5 modulus are rated for moderate-duty applications. Exact load ratings depend on tooth count, RPM, and lubrication conditions. For heavy industrial loads or continuous high-speed operation, consult an engineer to verify suitability. These are well-suited for DIY machinery, robotics, and light-to-medium mechanical drives.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these gears corrosion-resistant?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eC45 steel is not inherently corrosion-resistant. For outdoor or humid environments, apply a light machine oil or grease coating during installation and re-lubricate periodically. If corrosion resistance is a primary requirement, consider stainless steel alternatives.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWill these gears mesh with other 1.5 modulus bevel gears I already have?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes — as long as the mating gear shares the same modulus (1.5), the same 90° pressure angle geometry, and a compatible tooth count for your desired ratio. Always verify the pitch cone angle and bore dimensions match your existing assembly before mixing gear sets from different sources.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eDo I need to machine the bore, or is it ready to install?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eBore dimensions vary by variant — check the specific tooth count option you select for the pre-machined bore size. Many variants come with a standard bore that may require a keyway or set-screw modification to fit your shaft. If your shaft diameter differs, a local machine shop can bore to size.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the difference between the 15T+30T and 20T+40T options?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eBoth maintain the same 1:2 gear ratio and 1.5 modulus. The 20T+40T set has physically larger gears, which typically means a larger bore diameter, greater tooth contact area, and higher torque capacity. The 15T+30T set is more compact and lighter — ideal for space-constrained builds. Choose based on your shaft size and torque requirements.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs lubrication required, and what type should I use?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes, lubrication is recommended for all metal bevel gear applications. A light gear oil (ISO VG 68–150) or lithium-based grease applied to the tooth flanks at installation will reduce wear and noise. Re-lubricate at regular service intervals based on your duty cycle.\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 combination 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 combination for my application?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Select based on your required shaft diameter and available space. Larger tooth counts (e.g., 20T+40T) generally suit larger shaft bores and higher torque loads, while smaller counts (15T+30T) fit compact assemblies. All options maintain the same 1:2 ratio and 1.5 modulus.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What load capacity can these bevel gears handle?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"C45 steel bevel gears at 1.5 modulus are rated for moderate-duty applications. Exact load ratings depend on tooth count, RPM, and lubrication conditions. Well-suited for DIY machinery, robotics, and light-to-medium mechanical drives.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these gears corrosion-resistant?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"C45 steel is not inherently corrosion-resistant. Apply a light machine oil or grease coating during installation and re-lubricate periodically for outdoor or humid environments.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will these gears mesh with other 1.5 modulus bevel gears I already have?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, as long as the mating gear shares the same modulus (1.5), the same 90° pressure angle geometry, and a compatible tooth count for your desired ratio.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do I need to machine the bore, or is it ready to install?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Bore dimensions vary by variant. Many variants come with a standard bore that may require a keyway or set-screw modification to fit your shaft.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between the 15T+30T and 20T+40T options?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Both maintain the same 1:2 gear ratio and 1.5 modulus. The 20T+40T set has physically larger gears with greater torque capacity. The 15T+30T set is more compact — ideal for space-constrained builds.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is lubrication required, and what type should I use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. A light gear oil (ISO VG 68–150) or lithium-based grease applied to the tooth flanks at installation will reduce wear and noise. Re-lubricate at regular service intervals.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"1.5 Modulus \/ 15T + 30T","offer_id":52439320461586,"sku":"PENG073516x1","price":27.46,"currency_code":"USD","in_stock":true},{"title":"1.5 Modulus \/ 16T + 32T","offer_id":52439320494354,"sku":"PENG073517x1","price":33.25,"currency_code":"USD","in_stock":true},{"title":"1.5 Modulus \/ 18T + 36T","offer_id":52439320527122,"sku":"PENG073518x1","price":36.52,"currency_code":"USD","in_stock":true},{"title":"1.5 Modulus \/ 20T + 40T","offer_id":52439320559890,"sku":"PENG073519x1","price":37.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture5of5_7046933b-14c3-4b8d-b109-07a1f706cac4.jpg?v=1783348609","url":"https:\/\/homediyer.com\/products\/1-5-modulus-bevel-gears-1-2-ratio-90-degree-c45-steel","provider":"HomeDIYer","version":"1.0","type":"link"}