{"product_id":"0-5m-35t-spur-gears-steel-pinion-gears-metal-spur-transmission-gear-45-steel","title":"0.5M 35T Spur Gears Steel Pinion Gears Metal Spur Transmission Gear 45 Steel","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e0.5M 35T Steel Spur Gears — Reliable Pinion Transmission for Precision Motion Control\u003c\/h2\u003e\n\u003cp\u003eWhen your drive train demands consistent torque transfer and tight mesh tolerances, undersized or poorly machined gears become the weakest link. These 0.5M 35T spur gears are engineered for makers, robotics builders, and mechanical hobbyists who need dependable power transmission without the guesswork of sourcing industrial surplus.\u003c\/p\u003e\n\u003cp\u003eEach gear is machined from 45# carbon steel, offering a balance of hardness and machinability suited to light-to-medium duty applications. The module is 0.5 (metric), with 35 teeth and bore options of 6 mm (~0.236 in) or 8 mm (~0.315 in) to fit common motor and shaft diameters. Gear outer diameter is approximately 18.5 mm (~0.728 in), with a face width typically in the 5–8 mm range depending on variant.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include RC vehicle gearboxes requiring a compact 0.5 module pinion gear, small robotic arm joints needing a 35-tooth steel spur gear for torque multiplication, and DIY CNC or automation projects using metric module gear sets for smooth, low-backlash transmission.\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 0.5 module gear systems. Mates with any 0.5M rack, pinion, or mating spur gear. Bore sizes 6 mm and 8 mm fit standard motor shafts and hobby-grade drive axles.\n\u003c\/div\u003e\n\n\u003ch2\u003e✅ Key Features of These 0.5M 35T Steel Spur Gears\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e🔩\u003c\/div\u003e\n\u003cstrong\u003e45# Carbon Steel Construction\u003c\/strong\u003e\n\u003cp\u003eMachined from 45# carbon steel for a reliable combination of surface hardness and core toughness, reducing wear under repeated load cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e📐\u003c\/div\u003e\n\u003cstrong\u003e0.5 Module, 35 Teeth\u003c\/strong\u003e\n\u003cp\u003eStandard metric 0.5M tooth profile ensures accurate mesh with any compatible 0.5 module gear, rack, or pinion in your drivetrain.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e🎯\u003c\/div\u003e\n\u003cstrong\u003eDual Bore Options\u003c\/strong\u003e\n\u003cp\u003eAvailable in 6 mm and 8 mm bore diameters to match common motor shaft sizes used in RC, robotics, and small automation systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e📦\u003c\/div\u003e\n\u003cstrong\u003eFlexible Quantity Packs\u003c\/strong\u003e\n\u003cp\u003eOrder from 1 to 50 pieces per pack — ideal for prototyping single units or stocking spares for production runs and repair kits.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e⚡\u003c\/div\u003e\n\u003cstrong\u003eLow Backlash Tooth Profile\u003c\/strong\u003e\n\u003cp\u003ePrecision-cut involute tooth form minimizes backlash and noise, supporting smooth, efficient power transfer in compact gear trains.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003cdiv class=\"hdiy-icon\"\u003e🔄\u003c\/div\u003e\n\u003cstrong\u003eVersatile Application Range\u003c\/strong\u003e\n\u003cp\u003eSuitable for RC car gearboxes, robotic joints, small conveyor drives, and DIY CNC axis drives requiring a compact metric spur gear.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003ch2\u003e📐 Technical Specifications — 0.5M Spur Gears\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModule\u003c\/th\u003e\n\u003ctd\u003e0.5M (Metric)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Teeth\u003c\/th\u003e\n\u003ctd\u003e35T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e45# Carbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter\u003c\/th\u003e\n\u003ctd\u003e6 mm \/ 8 mm (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (approx.)\u003c\/th\u003e\n\u003ctd\u003e~18.5 mm (~0.728 in)\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\u003ePressure Angle\u003c\/th\u003e\n\u003ctd\u003e20°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural steel (uncoated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGear Type\u003c\/th\u003e\n\u003ctd\u003eSpur (straight tooth)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Quantities\u003c\/th\u003e\n\u003ctd\u003e1 \/ 3 \/ 5 \/ 10 \/ 15 \/ 20 \/ 30 \/ 40 \/ 50 pcs\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 between the 6 mm and 8 mm bore?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMeasure your motor or drive shaft diameter. If your shaft is 6 mm, select the 35T-6mm variant. If your shaft is 8 mm, select 35T-8mm. Using a bore that is too large will cause the gear to slip; too small and it will not fit without machining.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the pressure angle of these spur gears?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThese gears use a standard 20° pressure angle, which is the most common metric involute tooth form. They will mesh correctly with any other 0.5M, 20° pressure angle spur gear or rack.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAre these gears strong enough for RC car drivetrains?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. 45# carbon steel provides adequate strength for light-to-medium duty RC and hobby applications. For high-torque brushless motor setups running sustained full-throttle loads, consider pairing with a compatible steel pinion and checking mesh alignment carefully to maximize gear life.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWill these gears rust or corrode over time?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe gears are supplied with a natural steel finish and are not coated or plated. For outdoor or humid environments, apply a light machine oil or grease to the tooth surfaces and bore to prevent surface oxidation and extend service life.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these with a 0.5M plastic gear or rack?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes, these steel spur gears are compatible with any 0.5 module mating gear regardless of material — plastic, nylon, brass, or steel — as long as the module and pressure angle match. Note that steel-on-plastic pairings will wear the plastic gear faster under heavy loads.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow many gears should I order for a project?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eFor prototyping, a 1- or 3-piece pack is sufficient to test fit and function. For small production runs or repair kits, the 10–20 piece packs offer better per-unit value. The 30–50 piece packs are suited for batch builds or stocking workshop spares.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the outer diameter of a 0.5M 35T spur gear?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe theoretical outer diameter (addendum circle) of a 0.5M 35T gear is calculated as (35 + 2) × 0.5 = 18.5 mm (~0.728 in). Actual machined dimensions may vary slightly; confirm with calipers before designing tight-clearance housings.\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 Teeth - Bore(mm) and Qty(pcs) above, then add to cart.\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"35T-6mm \/ 1","offer_id":52443367309586,"sku":"GLFBMWXGLCDPJ00060x1","price":4.15,"currency_code":"USD","in_stock":true},{"title":"35T-6mm \/ 3","offer_id":52443367342354,"sku":"GLFBMWXGLCDPJ00060x3","price":10.28,"currency_code":"USD","in_stock":true},{"title":"35T-6mm \/ 5","offer_id":52443367375122,"sku":"GLFBMWXGLCDPJ00060x5","price":16.71,"currency_code":"USD","in_stock":true},{"title":"35T-6mm \/ 10","offer_id":52443367407890,"sku":"GLFBMWXGLCDPJ00060x10","price":32.82,"currency_code":"USD","in_stock":true},{"title":"35T-6mm \/ 15","offer_id":52443367440658,"sku":"GLFBMWXGLCDPJ00060x15","price":48.91,"currency_code":"USD","in_stock":true},{"title":"35T-6mm \/ 20","offer_id":52443367473426,"sku":"GLFBMWXGLCDPJ00060x20","price":65.01,"currency_code":"USD","in_stock":true},{"title":"35T-6mm \/ 30","offer_id":52443367506194,"sku":"GLFBMWXGLCDPJ00060x30","price":97.21,"currency_code":"USD","in_stock":true},{"title":"35T-6mm \/ 40","offer_id":52443367538962,"sku":"GLFBMWXGLCDPJ00060x40","price":129.4,"currency_code":"USD","in_stock":true},{"title":"35T-6mm \/ 50","offer_id":52443367571730,"sku":"GLFBMWXGLCDPJ00060x50","price":161.6,"currency_code":"USD","in_stock":true},{"title":"35T-8mm \/ 1","offer_id":52443367604498,"sku":"GLFBMWXGLCDPJ00061x1","price":4.15,"currency_code":"USD","in_stock":true},{"title":"35T-8mm \/ 3","offer_id":52443367637266,"sku":"GLFBMWXGLCDPJ00061x3","price":10.28,"currency_code":"USD","in_stock":true},{"title":"35T-8mm \/ 5","offer_id":52443367670034,"sku":"GLFBMWXGLCDPJ00061x5","price":16.71,"currency_code":"USD","in_stock":true},{"title":"35T-8mm \/ 10","offer_id":52443367702802,"sku":"GLFBMWXGLCDPJ00061x10","price":32.82,"currency_code":"USD","in_stock":true},{"title":"35T-8mm \/ 15","offer_id":52443367735570,"sku":"GLFBMWXGLCDPJ00061x15","price":48.91,"currency_code":"USD","in_stock":true},{"title":"35T-8mm \/ 20","offer_id":52443367768338,"sku":"GLFBMWXGLCDPJ00061x20","price":65.01,"currency_code":"USD","in_stock":true},{"title":"35T-8mm \/ 30","offer_id":52443367801106,"sku":"GLFBMWXGLCDPJ00061x30","price":97.21,"currency_code":"USD","in_stock":true},{"title":"35T-8mm \/ 40","offer_id":52443367833874,"sku":"GLFBMWXGLCDPJ00061x40","price":129.4,"currency_code":"USD","in_stock":true},{"title":"35T-8mm \/ 50","offer_id":52443367866642,"sku":"GLFBMWXGLCDPJ00061x50","price":161.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of5_1_f8ea4ec3-5686-41a5-bca3-59d83b01177a.jpg?v=1784113230","url":"https:\/\/homediyer.com\/products\/0-5m-35t-spur-gears-steel-pinion-gears-metal-spur-transmission-gear-45-steel","provider":"HomeDIYer","version":"1.0","type":"link"}