{"product_id":"motor-bevel-gear-1-0-mod-20-tooth-90-pairing-bore-5-6-6-35-8mm","title":"Motor Bevel Gear 1.0 Mod 20 Tooth 90° Pairing Bore 5\/6\/6.35\/8mm Bevel Gear x1Pcs","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e1.0 Mod 20-Tooth 90° Bevel Gear Pair — Precision Drivetrain Component for Makers \u0026amp; Engineers\u003c\/h2\u003e\n\u003cp\u003eWhen your project demands a reliable right-angle power transfer and off-the-shelf gears just don't cut it, you need a bevel gear set engineered to spec. Whether you're a robotics hobbyist, a CNC builder, or a mechanical engineering student assembling a custom gearbox, mismatched or imprecise bevel gears cause backlash, noise, and premature wear. This 1.0 Module 20-tooth 90° mating bevel gear pair is designed to eliminate those headaches with consistent tooth geometry and a matched pairing angle.\u003c\/p\u003e\n\u003cp\u003eEach set consists of two identical 20-tooth bevel gears machined to 1.0 Module (Mod 1.0) specification, configured to mesh at a 90° shaft angle. The gears are manufactured from carbon steel with a natural metallic finish, offering a balance of strength and machinability. Bore options range from 5mm to 8mm (approximately 0.197\" to 0.315\"), covering the most common motor shaft and axle diameters used in hobby and light industrial applications. Tooth count is 20T per gear, and the pitch diameter is typically 20mm (≈0.787\").\u003c\/p\u003e\n\u003cp\u003eTypical use cases include: right-angle gearbox assemblies for DIY robotics and automation rigs; CNC router axis drives where a 90° direction change is required; and custom RC vehicle or conveyor drivetrain builds needing a compact, low-backlash bevel gear pair. Long-tail search terms this product addresses: \"1 mod 20 tooth bevel gear pair\", \"90 degree bevel gear set 5mm bore\", \"metric bevel gear for stepper motor shaft\".\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 Fits motor shafts and axles with 5mm, 6mm, 6.35mm (1\/4\"), or 8mm diameter. Designed to mesh with an identical 1.0 Mod 20T bevel gear at a 90° shaft angle. Verify bore and keyway requirements before ordering.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These 1.0 Mod 20-Tooth 90° Bevel Gears\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003eMatched 90° Mating Pair\u003c\/strong\u003e — Both gears are cut to the same 1.0 Mod 20T specification and sold as a matched set, ensuring correct mesh angle and minimal backlash straight out of the box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eMultiple Bore Options\u003c\/strong\u003e — Available in 5mm, 6mm, 6.35mm, and 8mm bore diameters to suit a wide range of motor shafts, stepper motor outputs, and custom axles without additional machining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏗️\u003c\/span\u003e \u003cstrong\u003eCarbon Steel Construction\u003c\/strong\u003e — Machined from carbon steel for a solid strength-to-weight ratio, suitable for light-to-medium load drivetrain applications in robotics, automation, and hobby machinery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e \u003cstrong\u003e1.0 Module Precision Tooth Profile\u003c\/strong\u003e — Standard Mod 1.0 tooth geometry ensures interchangeability with other metric Mod 1.0 gears and predictable load distribution across all 20 teeth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e \u003cstrong\u003eCompact 20mm Pitch Diameter\u003c\/strong\u003e — The small pitch diameter (≈20mm \/ 0.787\") keeps your gearbox footprint tight, making these gears ideal for space-constrained robotic joints and compact drive assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e \u003cstrong\u003eSet Screw Ready\u003c\/strong\u003e — Each gear hub is pre-drilled and tapped for a set screw, allowing secure shaft fixation without requiring a keyway, simplifying installation in prototype and production builds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — 1.0 Mod Bevel Gear\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModule (Mod)\u003c\/th\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTooth Count\u003c\/th\u003e\n\u003ctd\u003e20 Teeth\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\u003ePitch Diameter\u003c\/th\u003e\n\u003ctd\u003e≈ 20mm (0.787\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter\u003c\/th\u003e\n\u003ctd\u003e5mm \/ 6mm \/ 6.35mm \/ 8mm (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural Metallic (uncoated)\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\u003eHub Fixation\u003c\/th\u003e\n\u003ctd\u003eSet Screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGear Type\u003c\/th\u003e\n\u003ctd\u003eStraight Bevel Gear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e1 Piece (single gear)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eRobotics, CNC, DIY Gearbox, Automation\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 motor shaft?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure your motor or axle shaft diameter with a caliper. Common stepper motor shafts are 5mm or 6.35mm (1\/4\"); DC gear motor outputs are often 6mm or 8mm. Select the bore that matches your shaft diameter. If your shaft has a flat (D-cut), the set screw will grip it securely without a keyway.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\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. A bevel gear pair requires two gears meshing at 90°. This listing sells one gear per unit (1Pcs). To build a complete right-angle drive, add two units to your cart — one for each shaft. Both gears are identical 1.0 Mod 20T, so they mesh correctly with each other.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat load capacity can these bevel gears handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese carbon steel Mod 1.0 bevel gears are rated for light-to-medium loads typical of hobby robotics, small CNC machines, and DIY automation. Exact torque ratings depend on operating speed, lubrication, and shaft alignment. For heavy industrial loads exceeding the hobby range, contact us to confirm suitability before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these gears corrosion resistant?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe gears are made from carbon steel with a natural (uncoated) finish, which provides moderate corrosion resistance suitable for indoor, dry environments. For applications exposed to moisture or mild chemicals, we recommend applying a light machine oil or grease to the tooth surfaces and bore after installation to extend service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill these gears mesh with other Mod 1.0 bevel gears from different brands?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eIn general, gears of the same module (Mod 1.0) and tooth count (20T) with the same pressure angle will mesh correctly. However, minor manufacturing tolerances between brands can affect backlash. For the most reliable mesh, we recommend pairing two gears from the same listing. If mixing brands, verify the pressure angle and pitch diameter match before assembly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use a 6.35mm bore gear on a 1\/4-inch shaft?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. 6.35mm is the metric equivalent of 1\/4 inch (0.250\"), so the 6.35mm bore variant is designed specifically for standard 1\/4\" shafts commonly found in US-spec motors, hobby servos, and small gearboxes. The set screw secures the gear firmly on the shaft.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the best way to install and align these bevel gears?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMount each gear on its respective shaft so the tooth tips of both gears are flush and the apex of both pitch cones meets at the same point. Use a dial indicator or feeler gauge to check for even tooth contact across the full face width. Tighten the set screws to the manufacturer's recommended torque for your shaft diameter, and apply a thin layer of gear grease to the tooth faces before running under load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your bore size and pack quantity above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"5MM \/ 1Pcs","offer_id":52439259611410,"sku":"GF2820-0","price":10.44,"currency_code":"USD","in_stock":true},{"title":"6MM \/ 1Pcs","offer_id":52439259644178,"sku":"GF2820-1","price":12.95,"currency_code":"USD","in_stock":true},{"title":"6.35MM \/ 1Pcs","offer_id":52439259676946,"sku":"GF2820-2","price":10.43,"currency_code":"USD","in_stock":true},{"title":"8MM \/ 1Pcs","offer_id":52439259709714,"sku":"GF2820-3","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-03_f2150a3f-fdaf-4594-b72e-ed813cbce619.jpg?v=1782919413","url":"https:\/\/homediyer.com\/products\/motor-bevel-gear-1-0-mod-20-tooth-90-pairing-bore-5-6-6-35-8mm","provider":"HomeDIYer","version":"1.0","type":"link"}