{"product_id":"1-5-modulus-bevel-gear-15t-30t-bore-5-6-8-10-12-15mm-90-1-2-pairing-bevel-gear","title":"1.5 Modulus Bevel Gear 15T\/30T Bore 5\/6\/8\/10\/12\/15mm 90° 1:2 Pairing Bevel Gear","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e1.5 Modulus Bevel Gear Set — Precise 90° Power Transmission for DIY and Mechanical Builds\u003c\/h2\u003e\n\u003cp\u003eWhen your project demands a reliable right-angle drive — whether you're building a CNC axis, a robotic joint, or a custom gearbox — mismatched or imprecise bevel gears cause backlash, noise, and premature wear. These 1.5 modulus bevel gears are engineered for makers, mechanical engineers, and DIY builders who need accurate 90° torque transfer without compromise.\u003c\/p\u003e\n\u003cp\u003eEach set consists of a matched 15T pinion gear and a 30T ring gear forming a 1:2 ratio pair, machined from steel for durability. Bore options range from 5 mm (0.20 in) to 15 mm (0.59 in), covering the most common shaft diameters used in hobby and light-industrial applications. The 1.5 modulus tooth profile ensures smooth meshing and consistent load distribution across the gear face.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include right-angle gearbox assemblies for CNC router Z-axes, servo-driven robotic arm joints requiring 1:2 speed reduction, and custom differential drive mechanisms in RC vehicles or automation rigs. Long-tail search terms like \"1.5 mod 90 degree bevel gear pair\" and \"15T 30T steel bevel gear set\" reflect exactly what this product delivers.\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 for 1.5 modulus gear systems. Pinion (15T) and ring gear (30T) are sold as a matched pair. Select bore diameter to match your shaft size — available in 5, 6, 8, 10, 12, and 15 mm.\u003c\/div\u003e\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 \u003cstrong\u003eTrue 90° Mesh Angle\u003c\/strong\u003e\n\u003cp\u003ePinion and ring gear are matched at a precise 90° shaft angle, enabling clean right-angle power transmission with minimal backlash in your drivetrain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003e1:2 Speed Reduction Ratio\u003c\/strong\u003e\n\u003cp\u003eThe 15T\/30T tooth count pairing delivers a fixed 1:2 ratio — ideal for torque multiplication in servo-driven or motor-driven mechanical assemblies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eWide Bore Range: 5–15 mm\u003c\/strong\u003e\n\u003cp\u003eSix bore sizes (5, 6, 8, 10, 12, 15 mm) accommodate the most common shaft diameters used in hobby motors, stepper shafts, and light-industrial drives.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e \u003cstrong\u003eSteel Construction for Load Durability\u003c\/strong\u003e\n\u003cp\u003eMachined from steel, these gears handle continuous rotational loads without deforming under torque — suitable for both intermittent and sustained drive cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e \u003cstrong\u003e1.5 Modulus Tooth Profile\u003c\/strong\u003e\n\u003cp\u003eThe 1.5 mod tooth geometry provides a balance between tooth strength and compact gear diameter, fitting tightly spaced mechanical enclosures without sacrificing load capacity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e \u003cstrong\u003eSold as a Matched Pair\u003c\/strong\u003e\n\u003cp\u003ePinion (15T) and ring gear (30T) are supplied together as a pre-matched set, eliminating the guesswork of sourcing compatible mating gears separately.\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 — 1.5 Modulus Bevel Gear Pair\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\u003eTooth Count (Pinion \/ Ring)\u003c\/th\u003e\n\u003ctd\u003e15T \/ 30T\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\u003eShaft Angle\u003c\/th\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter Options\u003c\/th\u003e\n\u003ctd\u003e5 mm \/ 6 mm \/ 8 mm \/ 10 mm \/ 12 mm \/ 15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePitch Diameter (15T)\u003c\/th\u003e\n\u003ctd\u003e22.5 mm (0.89 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePitch Diameter (30T)\u003c\/th\u003e\n\u003ctd\u003e45 mm (1.77 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePressure Angle\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\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 (1× 15T + 1× 30T)\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\u003eHow do I choose the right bore size for my shaft?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure your motor or drive shaft diameter with a caliper. Select the bore option that matches exactly — for example, a NEMA 17 stepper typically uses a 5 mm shaft, while larger servo motors often use 8–12 mm shafts. A bore that is too large will require a setscrew or keyway adapter to prevent slipping.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre the 15T and 30T gears sold together or separately?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThey are sold as a matched pair. Each order includes one 15T pinion gear and one 30T ring gear, pre-matched for 90° mesh. You do not need to purchase them separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the gear ratio and what does it mean for my build?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe 15T\/30T pairing produces a 1:2 ratio — for every two rotations of the input (pinion) shaft, the output (ring gear) shaft completes one rotation. This halves the speed and doubles the torque at the output, which is useful for servo-driven joints or motor-driven axes where you need more torque at lower RPM.\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 environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese gears are machined from steel, which provides good mechanical strength but has moderate corrosion resistance. For outdoor or high-humidity applications, we recommend applying a light machine oil or grease coating, or considering a stainless steel alternative if long-term corrosion resistance is critical.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the maximum torque or RPM these gears can handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eExact torque and RPM ratings depend on the specific bore variant, lubrication, and operating conditions. As a general guideline for 1.5 modulus steel bevel gears of this size, they are suited for light-to-medium duty applications — typically hobby CNC, robotics, and small automation rigs. Contact us to confirm suitability for high-load or high-speed applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use just the 15T or 30T gear individually with a different mating gear?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese gears are designed and matched as a 1:2 pair. While the 1.5 modulus tooth profile is a standard, mixing with gears from different manufacturers may result in mesh errors or backlash due to slight variations in pressure angle and tooth geometry. For best results, use the matched pair as supplied.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat applications are these bevel gears best suited for?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese 1.5 modulus bevel gears are well-suited for CNC machine right-angle drives, robotic arm joints, RC vehicle differentials, custom gearbox assemblies, and any DIY mechanical project requiring a 90° change in shaft direction with a 1:2 speed reduction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your Model 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":"30T \/ 8mm","offer_id":52439299162386,"sku":"TRA16091","price":13.11,"currency_code":"USD","in_stock":true},{"title":"30T \/ 10mm","offer_id":52439299195154,"sku":"TRA16092","price":13.11,"currency_code":"USD","in_stock":true},{"title":"30T \/ 12mm","offer_id":52439299227922,"sku":"TRA16093","price":13.11,"currency_code":"USD","in_stock":true},{"title":"30T \/ 15mm","offer_id":52439299260690,"sku":"TRA16098","price":13.11,"currency_code":"USD","in_stock":true},{"title":"15T \/ 5mm","offer_id":52439299293458,"sku":"TRA16099","price":4.62,"currency_code":"USD","in_stock":true},{"title":"15T \/ 6mm","offer_id":52439299326226,"sku":"TRA16094","price":4.62,"currency_code":"USD","in_stock":true},{"title":"15T \/ 8mm","offer_id":52439299358994,"sku":"TRA16095","price":4.62,"currency_code":"USD","in_stock":true},{"title":"15T \/ 10mm","offer_id":52439299391762,"sku":"TRA16096","price":4.91,"currency_code":"USD","in_stock":true},{"title":"15T \/ 12mm","offer_id":52439299424530,"sku":"TRA16097","price":4.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of6_35e60d86-810b-4f28-bac9-12d5ab5c45a4.jpg?v=1783331856","url":"https:\/\/homediyer.com\/products\/1-5-modulus-bevel-gear-15t-30t-bore-5-6-8-10-12-15mm-90-1-2-pairing-bevel-gear","provider":"HomeDIYer","version":"1.0","type":"link"}