{"product_id":"sito-drive-hs-25-i-reducer","title":"SITO DRIVE HS-25-I Reducer, 30–120 Speed Ratios for Robotic Systems","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-25-I reducer is offered in 30, 50, 80, 100, and 120 speed-ratio options for robotic motion systems. At a 2000 rpm input, rated torque ranges from 27 to 67 Nm by ratio, while maximum allowable input speed is 5600 rpm. Select the ratio according to the required torque, backlash, and motion arrangement.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFive selectable speed ratios: 30, 50, 80, 100, and 120.\u003c\/li\u003e\n\u003cli\u003eMaximum allowable input speed of 5600 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\u003eHS-25-I, Ratio 30\u003c\/th\u003e\n\u003cth\u003eHS-25-I, Ratio 50\u003c\/th\u003e\n\u003cth\u003eHS-25-I, Ratio 80\u003c\/th\u003e\n\u003cth\u003eHS-25-I, Ratio 100\u003c\/th\u003e\n\u003cth\u003eHS-25-I, Ratio 120\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated torque at 2000 rpm input\u003c\/td\u003e\n\u003ctd\u003e27 Nm\u003c\/td\u003e\n\u003ctd\u003e39 Nm\u003c\/td\u003e\n\u003ctd\u003e63 Nm\u003c\/td\u003e\n\u003ctd\u003e67 Nm\u003c\/td\u003e\n\u003ctd\u003e67 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak torque allowed during start\/stop\u003c\/td\u003e\n\u003ctd\u003e50 Nm\u003c\/td\u003e\n\u003ctd\u003e98 Nm\u003c\/td\u003e\n\u003ctd\u003e137 Nm\u003c\/td\u003e\n\u003ctd\u003e157 Nm\u003c\/td\u003e\n\u003ctd\u003e167 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum allowable average load torque\u003c\/td\u003e\n\u003ctd\u003e38 Nm\u003c\/td\u003e\n\u003ctd\u003e55 Nm\u003c\/td\u003e\n\u003ctd\u003e87 Nm\u003c\/td\u003e\n\u003ctd\u003e108 Nm\u003c\/td\u003e\n\u003ctd\u003e108 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstantaneous maximum torque\u003c\/td\u003e\n\u003ctd\u003e95 Nm\u003c\/td\u003e\n\u003ctd\u003e186 Nm\u003c\/td\u003e\n\u003ctd\u003e255 Nm\u003c\/td\u003e\n\u003ctd\u003e284 Nm\u003c\/td\u003e\n\u003ctd\u003e304 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum allowable input speed\u003c\/td\u003e\n\u003ctd\u003e5600 rpm\u003c\/td\u003e\n\u003ctd\u003e5600 rpm\u003c\/td\u003e\n\u003ctd\u003e5600 rpm\u003c\/td\u003e\n\u003ctd\u003e5600 rpm\u003c\/td\u003e\n\u003ctd\u003e5600 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\u003e0.413 × 10⁻⁴ kg·m²\u003c\/td\u003e\n\u003ctd\u003e0.413 × 10⁻⁴ kg·m²\u003c\/td\u003e\n\u003ctd\u003e0.413 × 10⁻⁴ kg·m²\u003c\/td\u003e\n\u003ctd\u003e0.413 × 10⁻⁴ kg·m²\u003c\/td\u003e\n\u003ctd\u003e0.413 × 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-25-i-reducer-stp.step?v=1791421752\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eSITO HS 25 I Reducer — 3D Model (STEP)\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-25-i-reducer-draw-product-installation-drawing.pdf?v=1791421759\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eSITO HS 25 I Draw instalation drawing — Installation Drawing (PDF)\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eThe HS-25-I is listed for the following robotic applications, where its selectable speed ratios and listed torque and backlash values support reducer selection for the required motion arrangement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumanoid robots:\u003c\/strong\u003e joint-motion configurations requiring a selected reduction ratio.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobotic arms:\u003c\/strong\u003e robotic joint assemblies matched to the specified ratio and torque values.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExoskeletons:\u003c\/strong\u003e motion-system layouts requiring a reducer ratio selection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuadruped robots:\u003c\/strong\u003e leg-joint motion arrangements using the listed ratio options.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAGV vehicles:\u003c\/strong\u003e robotic vehicle motion systems requiring a selected reduction ratio.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eARU robots:\u003c\/strong\u003e robotic motion arrangements using the listed HS-25-I options.\u003c\/li\u003e\n\u003c\/ul\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 strain wave reducer family graphic with ratio and torque range text\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-25-i-reducer-30-120-spee-a8d75d8223.webp?v=1791421858\"\u003e\u003cfigcaption\u003eThe reduction-ratio selection includes 30. The reduction-ratio selection includes 50.\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 graphic labelled CS Mini-2.5\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-25-i-reducer-30-120-spee-e174ee9459.webp?v=1791421863\"\u003e\u003cfigcaption\u003eRobotic hand graphic identifying a CS Mini-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 graphic\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-25-i-reducer-30-120-spee-00a0c71a0c.webp?v=1791421876\"\u003e\u003cfigcaption\u003eManufacturing and inspection imagery 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 reducer size comparison beside a U.S. quarter with 11 mm callout\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-25-i-reducer-30-120-spee-0b852c5592.webp?v=1791421868\"\u003e\u003cfigcaption\u003eSmall strain wave reducers beside a U.S. quarter with an 11 mm diameter callout\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 illustration for reducer applications\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-25-i-reducer-30-120-spee-11168a6b33.webp?v=1791421872\"\u003e\u003cfigcaption\u003eIndustrial robotic arm illustration for harmonic reducer applications\u003c\/figcaption\u003e\u003c\/figure\u003e","brand":"SITO DRIVE","offers":[{"title":"30","offer_id":67748095918304,"sku":"SIT-BD079AD3","price":410.64,"currency_code":"USD","in_stock":true},{"title":"50","offer_id":67748095951072,"sku":"SIT-3548967E","price":423.6,"currency_code":"USD","in_stock":true},{"title":"80","offer_id":67748095983840,"sku":"SIT-CBA0155B","price":438.0,"currency_code":"USD","in_stock":true},{"title":"100","offer_id":67748096016608,"sku":"SIT-F7EE9565","price":452.4,"currency_code":"USD","in_stock":true},{"title":"120","offer_id":67748096049376,"sku":"SIT-AB852818","price":459.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/sito-drive-hs-25-i-reducer-front-keyed-bore-01.webp?v=1791421706","url":"https:\/\/rcdrone.top\/products\/sito-drive-hs-25-i-reducer","provider":"RCDrone","version":"1.0","type":"link"}