{"product_id":"sito-drive-hs-20-i-reducer","title":"SITO DRIVE HS-20-I Reducer, 30–120 Speed Ratio, for Robotic Motion Applications","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe \u003ca class=\"product-context-link\" href=\"https:\/\/rcdrone.top\/collections\/sito-drive\/\" style=\"font-weight:600;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:0.15em;\"\u003eSITO DRIVE\u003c\/a\u003e HS-20-I Reducer is offered in 30, 50, 80, 100, and 120 transmission-ratio options for robotic and motion applications. At a 2000 rpm input speed, rated torque ranges from 15 to 40 Nm by ratio. Select the ratio to suit the required reduction, while comparing the corresponding torque limits and backlash specification for the chosen option.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFive selectable transmission ratios: 30, 50, 80, 100, and 120.\u003c\/li\u003e\n\u003cli\u003eMaximum allowable input speed of 6500 rpm and allowable average speed of 3500 rpm for every listed ratio.\u003c\/li\u003e\n\u003cli\u003eBacklash of ≤20 arcsec for ratios 30 and 50, and ≤10 arcsec for ratios 80, 100, and 120.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eRatio 30\u003c\/th\u003e\n\u003cth\u003eRatio 50\u003c\/th\u003e\n\u003cth\u003eRatio 80\u003c\/th\u003e\n\u003cth\u003eRatio 100\u003c\/th\u003e\n\u003cth\u003eRatio 120\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eHS-20-I\u003c\/td\u003e\n\u003ctd\u003eHS-20-I\u003c\/td\u003e\n\u003ctd\u003eHS-20-I\u003c\/td\u003e\n\u003ctd\u003eHS-20-I\u003c\/td\u003e\n\u003ctd\u003eHS-20-I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission ratio\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated torque at 2000 rpm input\u003c\/td\u003e\n\u003ctd\u003e15 Nm\u003c\/td\u003e\n\u003ctd\u003e25 Nm\u003c\/td\u003e\n\u003ctd\u003e34 Nm\u003c\/td\u003e\n\u003ctd\u003e40 Nm\u003c\/td\u003e\n\u003ctd\u003e40 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak torque allowed during start\/stop\u003c\/td\u003e\n\u003ctd\u003e27 Nm\u003c\/td\u003e\n\u003ctd\u003e56 Nm\u003c\/td\u003e\n\u003ctd\u003e74 Nm\u003c\/td\u003e\n\u003ctd\u003e82 Nm\u003c\/td\u003e\n\u003ctd\u003e87 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum allowable average load torque\u003c\/td\u003e\n\u003ctd\u003e20 Nm\u003c\/td\u003e\n\u003ctd\u003e34 Nm\u003c\/td\u003e\n\u003ctd\u003e47 Nm\u003c\/td\u003e\n\u003ctd\u003e49 Nm\u003c\/td\u003e\n\u003ctd\u003e49 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstantaneous maximum torque\u003c\/td\u003e\n\u003ctd\u003e50 Nm\u003c\/td\u003e\n\u003ctd\u003e98 Nm\u003c\/td\u003e\n\u003ctd\u003e127 Nm\u003c\/td\u003e\n\u003ctd\u003e147 Nm\u003c\/td\u003e\n\u003ctd\u003e147 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum allowable input speed\u003c\/td\u003e\n\u003ctd\u003e6500 rpm\u003c\/td\u003e\n\u003ctd\u003e6500 rpm\u003c\/td\u003e\n\u003ctd\u003e6500 rpm\u003c\/td\u003e\n\u003ctd\u003e6500 rpm\u003c\/td\u003e\n\u003ctd\u003e6500 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAllowable average speed\u003c\/td\u003e\n\u003ctd\u003e3500 rpm\u003c\/td\u003e\n\u003ctd\u003e3500 rpm\u003c\/td\u003e\n\u003ctd\u003e3500 rpm\u003c\/td\u003e\n\u003ctd\u003e3500 rpm\u003c\/td\u003e\n\u003ctd\u003e3500 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMoment of inertia\u003c\/td\u003e\n\u003ctd\u003e0.193 (×10⁻⁴ kg·m²)\u003c\/td\u003e\n\u003ctd\u003e0.193 (×10⁻⁴ kg·m²)\u003c\/td\u003e\n\u003ctd\u003e0.193 (×10⁻⁴ kg·m²)\u003c\/td\u003e\n\u003ctd\u003e0.193 (×10⁻⁴ kg·m²)\u003c\/td\u003e\n\u003ctd\u003e0.193 (×10⁻⁴ kg·m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBacklash\u003c\/td\u003e\n\u003ctd\u003e≤20 arcsec\u003c\/td\u003e\n\u003ctd\u003e≤20 arcsec\u003c\/td\u003e\n\u003ctd\u003e≤10 arcsec\u003c\/td\u003e\n\u003ctd\u003e≤10 arcsec\u003c\/td\u003e\n\u003ctd\u003e≤10 arcsec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-20-i-reducer-stp.step?v=1791388143\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eSITO HS 20 I Reducer — 3D Model (STEP)\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-20-i-reducer-draw-product-installation-drawing.pdf?v=1791388149\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eSITO HS 20 I Draw instalation drawing — Installation Drawing (PDF)\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eUse the HS-20-I Reducer in humanoid robots, robotic arms, exoskeletons, quadruped robots, AGV vehicles, and ARU robots where a selectable reduction ratio can be matched to the required torque and backlash values. For robotic joint and arm-axis designs, the ratio-specific torque table supports selection against expected input speed and load conditions.\u003c\/p\u003e\n\u003ch2\u003eVisual Details\u003c\/h2\u003e\u003ch3\u003eProduct Video\u003c\/h3\u003e\u003cfigure class=\"tophitek-product-video-block\"\u003e\u003cvideo autoplay=\"autoplay\" class=\"tophitek-product-video\" controls=\"controls\" loop=\"loop\" muted=\"\" playsinline=\"\" src=\"https:\/\/cdn.shopify.com\/videos\/c\/o\/v\/c67a5b35bde34559932cc03793471a77.mp4\" style=\"display:block;width:auto;max-width:100%;height:auto;margin:0 auto\"\u003eYour browser does not support the video tag.\u003c\/video\u003e\u003c\/figure\u003e\u003cfigure class=\"tophitek-product-video-block\"\u003e\u003cvideo autoplay=\"autoplay\" class=\"tophitek-product-video\" controls=\"controls\" loop=\"loop\" muted=\"\" playsinline=\"\" src=\"https:\/\/cdn.shopify.com\/videos\/c\/o\/v\/2092e1fd6fdc46e38630b7a7681b3fd5.mp4\" style=\"display:block;width:auto;max-width:100%;height:auto;margin:0 auto\"\u003eYour browser does not support the video tag.\u003c\/video\u003e\u003c\/figure\u003e\u003cfigure class=\"tophitek-product-video-block\"\u003e\u003cvideo autoplay=\"autoplay\" class=\"tophitek-product-video\" controls=\"controls\" loop=\"loop\" muted=\"\" playsinline=\"\" src=\"https:\/\/cdn.shopify.com\/videos\/c\/o\/v\/dcd0693fb83a4e1099c31879cefe2ce4.mp4\" style=\"display:block;width:auto;max-width:100%;height:auto;margin:0 auto\"\u003eYour browser does not support the video tag.\u003c\/video\u003e\u003c\/figure\u003e\n\u003ch3\u003eSpecifications and Performance\u003c\/h3\u003e\n\u003cfigure class=\"wp-block-image size-full\"\u003e\u003cimg alt=\"SITO HS reducer family graphic with diameter, reduction-ratio, and rated-torque ranges\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-20-i-reducer-30-120-spee-ed1aae7f0e.webp?v=1791388231\"\u003e\u003cfigcaption\u003eStrain wave reducer family graphic with diameter, reduction-ratio, and rated-torque ranges\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003ch3\u003eAdditional Product Details\u003c\/h3\u003e\n\u003cfigure class=\"wp-block-image size-full\"\u003e\u003cimg alt=\"Robotic hand promotional graphic labelled CSMini-2.5 reducer\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/6848\/5000\/files\/SITO-HS-Series-des-_2.jpg?v=1764510787\"\u003e\u003cfigcaption\u003eRobotic hand graphic promoting the CSMini-2.5 ultra-micro strain wave drive reducer\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cfigure class=\"wp-block-image size-full\"\u003e\u003cimg alt=\"Reducer component manufacturing and inspection collage\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-20-i-reducer-30-120-spee-71471433e9.webp?v=1791388243\"\u003e\u003cfigcaption\u003eManufacturing and inspection process graphic for precision reducer components\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003ch3\u003eDimensions and Construction\u003c\/h3\u003e\n\u003cfigure class=\"wp-block-image size-full\"\u003e\u003cimg alt=\"Small strain wave reducers beside a U.S. dime with an 11 mm label\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-20-i-reducer-30-120-spee-e03578ba96.webp?v=1791388235\"\u003e\u003cfigcaption\u003eSmall strain wave reducers beside a U.S. dime, with an 11 mm reducer-diameter label\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003ch3\u003eApplication Examples\u003c\/h3\u003e\n\u003cfigure class=\"wp-block-image size-full\"\u003e\u003cimg alt=\"Industrial robotic arm and bionic hand harmonic reducer application graphic\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-20-i-reducer-30-120-spee-f735a35a21.webp?v=1791388239\"\u003e\u003cfigcaption\u003eIndustrial robotic arm and bionic robotic hand application graphic for harmonic reducers\u003c\/figcaption\u003e\u003c\/figure\u003e","brand":"SITO DRIVE","offers":[{"title":"30","offer_id":67748111679712,"sku":"SIT-A20118BC","price":384.72,"currency_code":"USD","in_stock":true},{"title":"50","offer_id":67748111712480,"sku":"SIT-014593C1","price":396.24,"currency_code":"USD","in_stock":true},{"title":"80","offer_id":67748111745248,"sku":"SIT-FEEA93FD","price":409.2,"currency_code":"USD","in_stock":true},{"title":"100","offer_id":67748111778016,"sku":"SIT-EEBDC18D","price":423.6,"currency_code":"USD","in_stock":true},{"title":"120","offer_id":67748111810784,"sku":"SIT-D35FB810","price":438.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/sito-drive-hs-20-i-reducer-front-fa-c66a1651bd-01.webp?v=1791388097","url":"https:\/\/rcdrone.top\/products\/sito-drive-hs-20-i-reducer","provider":"RCDrone","version":"1.0","type":"link"}