{"product_id":"ri70-90-harmonic-robot-joint-actuator","title":"Hollow Shaft Harmonic Drive Robot Joint Actuator RI70-90","description":"\u003ch2\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe RI70-90 is an integrated \u003cstrong\u003ehollow shaft harmonic drive robot joint actuator\u003c\/strong\u003e designed for robotic arms, humanoid robots, articulated joints, and advanced robotic motion systems.\u003c\/p\u003e\n\u003cp\u003eIt integrates a \u003cstrong\u003ebrushless motor, harmonic drive reducer, encoder feedback system, and hollow-shaft structure\u003c\/strong\u003e into a compact joint module, simplifying the integration of motor, reduction, and position feedback components in robotic joint designs.\u003c\/p\u003e\n\u003cp\u003eThe hollow-shaft architecture allows cables and wiring to be routed through the joint, making the RI70-90 particularly suitable for articulated robot arms and humanoid robot joints where compact mechanical integration and clean internal wiring are required.\u003c\/p\u003e\n\u003cp\u003eThe actuator supports multiple configurations, including \u003cstrong\u003eCAN or EtherCAT communication, single or dual encoder feedback, and optional brake\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated brushless robot joint actuator\u003c\/li\u003e\n\u003cli\u003eHarmonic drive reduction mechanism\u003c\/li\u003e\n\u003cli\u003eHollow-shaft design for internal cable routing\u003c\/li\u003e\n\u003cli\u003eIntegrated motor, reducer, and feedback architecture\u003c\/li\u003e\n\u003cli\u003eCAN and EtherCAT communication options\u003c\/li\u003e\n\u003cli\u003eSingle or dual encoder configurations\u003c\/li\u003e\n\u003cli\u003eOptional brake configuration\u003c\/li\u003e\n\u003cli\u003eDesigned for articulated robotic joints\u003c\/li\u003e\n\u003cli\u003eSuitable for robotic arms and humanoid robots\u003c\/li\u003e\n\u003cli\u003eCompact solution for advanced robotic motion systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\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\u003eCRA-RI70-90-PRO-XX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eIntegrated Robot Joint Actuator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Type\u003c\/td\u003e\n\u003ctd\u003eBrushless Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReducer Type\u003c\/td\u003e\n\u003ctd\u003eHarmonic Drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStructure\u003c\/td\u003e\n\u003ctd\u003eHollow Shaft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eCAN \/ EtherCAT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEncoder\u003c\/td\u003e\n\u003ctd\u003eSingle Encoder \/ Dual Encoder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrake\u003c\/td\u003e\n\u003ctd\u003eWithout Brake \/ With Brake\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eRI70-90 PRO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eRobotic Joint Motion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003eElectrical and mechanical specifications may vary depending on the selected actuator configuration.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003ePackage Includes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × RI70-90 Hollow Shaft Harmonic Drive Robot Joint Actuator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRobotic arm joints\u003c\/li\u003e\n\u003cli\u003eHumanoid robot joints\u003c\/li\u003e\n\u003cli\u003eArticulated robots\u003c\/li\u003e\n\u003cli\u003eService robotics\u003c\/li\u003e\n\u003cli\u003eResearch robotics\u003c\/li\u003e\n\u003cli\u003eRobotic motion platforms\u003c\/li\u003e\n\u003cli\u003eAutomation systems\u003c\/li\u003e\n\u003cli\u003eRobotics development projects\u003c\/li\u003e\n\u003cli\u003ePrecision joint mechanisms\u003c\/li\u003e\n\u003cli\u003eCustom robotic systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat is the RI70-90 robot joint actuator?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe RI70-90 is an integrated robotic joint actuator combining a brushless motor, harmonic drive reducer, encoder feedback, and hollow-shaft structure in a compact joint module.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat is the advantage of a harmonic drive robot joint actuator?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIntegrating the harmonic reduction mechanism directly into the joint reduces the need to separately assemble the motor, reducer, and feedback components, helping simplify robotic joint design.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDoes the RI70-90 have a hollow shaft?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eYes. The hollow-shaft architecture provides internal space for routing cables and wiring through the robotic joint.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDoes the RI70-90 support CAN communication?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eYes. CAN communication is available.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eIs EtherCAT communication available?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eYes. EtherCAT is available as an alternative communication configuration.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCan I choose between single and dual encoders?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eYes. Single encoder and dual encoder configurations are available.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eIs a brake available?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eYes. The RI70-90 is available with or without a brake depending on the required configuration.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eIs the RI70-90 suitable for humanoid robots?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe integrated hollow-shaft and harmonic drive architecture makes it suitable for compatible humanoid robot joints, robotic arms, articulated robots, and other advanced robotic motion systems.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCan I order a different communication or encoder configuration?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eYes. CAN\/EtherCAT, single\/dual encoder, and brake configurations are available. Contact us before ordering if you require a configuration other than the standard listed version.\u003c\/p\u003e","brand":"RobotDoo","offers":[{"title":"Default Title","offer_id":48278118170854,"sku":"CRA-RI70-90-PRO-XX","price":1839.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0954\/0326\/files\/ri70-90-harmonic-robot-joint-actuator-1_webp.jpg?v=1788423397","url":"https:\/\/robotdoo.com\/products\/ri70-90-harmonic-robot-joint-actuator","provider":"RobotDoo","version":"1.0","type":"link"}