{"product_id":"sito-drive-hs-25-iv-reducer","title":"SITO DRIVE HS-25-IV Reducer, 30–120 Ratios for Robotics","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\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-IV Reducer is offered in 30, 50, 80, 100, and 120 transmission-ratio options for \u003ca class=\"product-context-link\" href=\"https:\/\/rcdrone.top\/collections\/robotics\/\" style=\"font-weight:600;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:0.15em;\"\u003erobotics\u003c\/a\u003e motion-reduction assemblies. At a 2000 r\/min input speed, rated torque ranges from 27 to 67 Nm by ratio. Select the ratio to match the required torque, allowable speed, and backlash specification for the intended mechanism.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eUse the selected transmission ratio and corresponding torque limits when configuring motion-reduction assemblies for humanoid robots, robotic arms, exoskeletons, quadruped robots, AGV vehicles, and ARU robots. The ratio-specific torque and backlash values help match the reducer option to the mechanism’s operating requirements.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\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\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eHS-25-IV\u003c\/td\u003e\n\u003ctd\u003eHS-25-IV\u003c\/td\u003e\n\u003ctd\u003eHS-25-IV\u003c\/td\u003e\n\u003ctd\u003eHS-25-IV\u003c\/td\u003e\n\u003ctd\u003eHS-25-IV\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 r\/min 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\n\u003ch3\u003eDownloads\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-25-iv-reducer-stp.step?v=1791422481\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eSITO HS 25 IV Reducer — 3D Model (STEP)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-25-iv-reducer-draw-product-installation-drawing.pdf?v=1791422487\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eSITO HS 25 IV Draw instalation drawing — Installation Drawing (PDF)\u003c\/a\u003e\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-series reducer range graphic with ratio and rated-torque ranges\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-25-iv-reducer-30-120-rat-44f05f94c3.webp?v=1791422604\"\u003e\u003cfigcaption\u003eStrain wave drive reducer range graphic listing diameter, reduction ratios, and rated torque range\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003ch3\u003eFeatures and Design\u003c\/h3\u003e\n\u003cfigure class=\"wp-block-image size-full\"\u003e\u003cimg alt=\"CS Mini-2.5 reducer promotional graphic for dexterous-hand use\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-25-iv-reducer-30-120-rat-5856d421c5.webp?v=1791422609\"\u003e\u003cfigcaption\u003eCS Mini-2.5 strain wave drive reducer promotional graphic for dexterous-hand use\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=\"Miniature reducer size comparison with a quarter and 11 mm label\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-25-iv-reducer-30-120-rat-9a951354a1.webp?v=1791422613\"\u003e\u003cfigcaption\u003eMiniature strain wave reducer size comparison with a U.S. quarter and 11 mm 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=\"Robotic arm and bionic robot reducer application illustration\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-25-iv-reducer-30-120-rat-554f24331f.webp?v=1791422617\"\u003e\u003cfigcaption\u003eIndustrial robotic arm illustration describing harmonic reducers as robot core components\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=\"Machined reducer components and manufacturing process graphic\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/sito-drive-hs-25-iv-reducer-30-120-rat-10690be9ad.webp?v=1791422621\"\u003e\u003cfigcaption\u003eManufacturing process promotional graphic with machined reducer components\u003c\/figcaption\u003e\u003c\/figure\u003e","brand":"SITO DRIVE","offers":[{"title":"30","offer_id":67748080845024,"sku":"SIT-776A681D","price":420.24,"currency_code":"USD","in_stock":true},{"title":"50","offer_id":67748080877792,"sku":"SIT-F07884D6","price":433.2,"currency_code":"USD","in_stock":true},{"title":"80","offer_id":67748080910560,"sku":"SIT-7E103E35","price":447.6,"currency_code":"USD","in_stock":true},{"title":"100","offer_id":67748080943328,"sku":"SIT-1F7C439D","price":454.8,"currency_code":"USD","in_stock":true},{"title":"120","offer_id":67748080976096,"sku":"SIT-123B62E9","price":469.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/sito-drive-hs-25-iv-reducer-angled-cb662f625c-01.webp?v=1791422435","url":"https:\/\/rcdrone.top\/sw\/products\/sito-drive-hs-25-iv-reducer","provider":"RCDrone","version":"1.0","type":"link"}