{"product_id":"kpower-hbl300-servo","title":"Kpower HBL300 Brushless Metal Gear Servo Motor, 30.6kg.cm Torque, PWM\/TTL\/RS-485, 4.8-8.4V","description":"\u003cdiv\u003e\n\u003cvideo autoplay=\"autoplay\" controls=\"controls\" loop=\"loop\" muted=\"\" playsinline=\"\" src=\"https:\/\/cdn.shopify.com\/videos\/c\/o\/v\/14ece74d38184d308f8ba9089549b20f.mp4\" style=\"width:100%;height:auto;display:block;\"\u003e\n    Your browser does not support the video tag.\n  \u003c\/video\u003e\u003cvideo autoplay=\"autoplay\" controls=\"controls\" loop=\"loop\" muted=\"\" playsinline=\"\" src=\"https:\/\/cdn.shopify.com\/videos\/c\/o\/v\/48c5e47ceec14db19b38f97a7e1158f3.mp4\" style=\"width:100%;height:auto;display:block;\"\u003e\n    Your browser does not support the video tag.\n  \u003c\/video\u003e\n\u003c\/div\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe Kpower HBL300 servo motor is an HBL Series brushless servo designed for robotics, automation, and RC\/mechatronics projects that require high torque, metal gears, and multiple control interfaces. It supports PWM, TTL, and RS-485 control, operates from 4.8 ~ 8.4 V, and uses a potentiometer position sensor.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrushless motor design (HBL Series).\u003c\/li\u003e\n\u003cli\u003eHigh-precision metal gear drivetrain.\u003c\/li\u003e\n\u003cli\u003eProtocol: PWM | TTL | RS-485 (custom servo graphics also mention CAN as an available protocol option).\u003c\/li\u003e\n\u003cli\u003eTravel angle range: 120° (customizable). Standard angles listed: 120°, 180°, 270°, 360°.\u003c\/li\u003e\n\u003cli\u003eWorking frequency: 50 ~ 333 Hz (digital servo pulse-width graphic notes compatibility to 50–300 Hz high-frequency signals).\u003c\/li\u003e\n\u003cli\u003e3-wire servo lead pinout: Brown = GND, Red = Vcc, Orange = Signal.\u003c\/li\u003e\n\u003cli\u003eCertification marks shown: ISO, CE, RoHS, EN71.\u003c\/li\u003e\n\u003cli\u003eService life statement shown for HBL Series: “Up to Million Cycle Lifespan.”\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;min-width:720px;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:10px;border-bottom:1px solid #ddd;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:10px;border-bottom:1px solid #ddd;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eHBL300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eStall Torquee\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003e30.6 kg (provided specification); also shown: 30.6 kg.cm @ 7.4V; 28.5 kg.cm @ 6.0V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eRated Torquee\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003e7.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eNo-load Speed\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003e0.15 s\/60° (provided specification); also shown: 0.15 sec\/60 @ 7.4V; 0.16 sec\/60 @ 6.0V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003e65 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eDimension\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003e40 × 20 × 37.5 mm (provided specification); also shown: 40 × 20 × 39.4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eTravel Angle Range\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003e120° (Customizable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003e4.8 ~ 8.4 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eHorn Gear Spline\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003e25T φ5.82 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eGear Material\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eMotor\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eBrushless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eProtocol\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003ePWM | TTL | RS-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eNo-load Current\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003e4500 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003ePosition Sensor\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003ePotentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eCase Material\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eAluminum Alloy + Plastic (also described as “Aluminum Mid Case”)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eBall Bearing\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003e2BB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eWorking Frequency\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003e50 ~ 333 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003e-10 ~ 50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eIP Rating\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border-bottom:1px solid #eee;\"\u003eIP42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHumanoid robots\u003c\/li\u003e\n\u003cli\u003eRobotic arms\u003c\/li\u003e\n\u003cli\u003eExoskeletons\u003c\/li\u003e\n\u003cli\u003eQuadruped robots\u003c\/li\u003e\n\u003cli\u003eAGV vehicles\u003c\/li\u003e\n\u003cli\u003eARU robots\u003c\/li\u003e\n\u003cli\u003eRC aircraft and RC car models (1\/8 and 1\/10 scale listed)\u003c\/li\u003e\n\u003cli\u003eIndustrial automation\u003c\/li\u003e\n\u003cli\u003eService robots and robot vacuums\/floor cleaners\u003c\/li\u003e\n\u003cli\u003eTable tennis serving machine\u003c\/li\u003e\n\u003cli\u003eVTOL fixed-wing drone and drone dock\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eManuals\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/6848\/5000\/files\/Kpower-HBL300-Drawing.pdf?v=1780714971\" rel=\"noopener\" target=\"_blank\"\u003eKpower-HBL300-Drawing.pdf\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/6848\/5000\/files\/Kpower_Servo_Product_Manual-3.pdf?v=1781066839\" rel=\"noopener\" target=\"_blank\"\u003eKpower_Servo_Product_Manual.pdf\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"Kpower HBL300 brushless metal gear servo motor with aluminum mid case and multi-protocol control options\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/Kpower-HBL300-Servo-Motor.jpg?v=1782380212\"\u003e\u003cp\u003eThe Kpower HBL300 servo is built for demanding robotics and automation builds, pairing a brushless motor with a durable metal geartrain.\u003c\/p\u003e\n\u003cimg alt=\"HBL Series brushless servo highlights: high torque brushless motor, high-precision metal gears, and long cycle lifespan\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/Kpower-HBL300-Servo-Motor_17808681-14f0-43ce-8765-26913671c069.jpg?v=1782380221\"\u003e\u003cp\u003eBrushless drive and a high-precision metal gear set help deliver strong torque and long service life for repetitive motion tasks.\u003c\/p\u003e\n\u003cimg alt=\"HBL Series model comparison chart listing HBL045 to HBL300 torque, speed, and control protocols (PWM, TTL, RS-485)\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/Kpower-HBL300-Servo-Motor_933e461e-3172-4dfb-9fff-911174db898e.jpg?v=1782380229\"\u003e\u003cp\u003eCompare HBL Series options by torque\/speed targets and choose the control interface that fits your controller and wiring.\u003c\/p\u003e\n\u003cimg alt=\"Kpower HBL300 Brushless Metal Gear Servo Motor specs graphic with torque\/speed at 6.0V and 7.4V plus size and use cases\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/Kpower-HBL300-Servo-Motor_91908ef2-8cc9-4386-8d4b-e663a091bf91.jpg?v=1782380237\"\u003e\u003cp\u003eKey specifications are provided for common voltages, along with size\/weight details for fitment in RC and robotic assemblies.\u003c\/p\u003e\n\u003cimg alt=\"Servo selection reference for torque requirements, standard rotation angles (120–360°), speed range, and operating voltage notes\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/Kpower-HBL300-Servo-Motor_f897b94b-09d6-4639-8355-f6c51e258273.jpg?v=1782380245\"\u003e\u003cp\u003eUse the torque, speed, rotation angle, and voltage guidance to match a servo to your load and desired motion profile.\u003c\/p\u003e\n\u003cimg alt=\"Servo horn styles set: flat, cross, round, star, and single-arm options for different mounting patterns\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/Kpower-HBL300-Servo-Motor_53922d1f-f4b9-48f8-8fa9-ea0badddf6ce.jpg?v=1782380253\"\u003e\u003cp\u003eMultiple horn styles make it easier to adapt the output shaft to linkages, arms, wheels, and custom brackets.\u003c\/p\u003e\n\u003cimg alt=\"PWM servo pulse width chart mapping 0.5–2.5 ms signals to output angles, with 50–300 Hz compatibility note\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/Kpower-HBL300-Servo-Motor_cdc1a162-8836-4c78-ac20-e2046519d875.jpg?v=1782380261\"\u003e\u003cp\u003ePulse-width timing directly controls position, with support for higher-frequency control signals for responsive digital operation.\u003c\/p\u003e\n\u003cimg alt=\"Custom servo motor capabilities graphic: customization of appearance, torque, protocol, wiring, reliability, and protection options\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/Kpower-HBL300-Servo-Motor_ba6a602c-235f-4e0c-990a-3d8a7c07824f.jpg?v=1782380271\"\u003e\u003cp\u003eCustomization is available for appearance, wiring sequence, and control protocol integration when building OEM\/ODM projects.\u003c\/p\u003e\n\u003cimg alt=\"Stall torque vs rated torque guidance chart recommending using about one-quarter of stall torque for rated use\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/Kpower-HBL300-Servo-Motor_ece67549-90ef-4152-8714-0efd0dbcb741.jpg?v=1782380279\"\u003e\u003cp\u003eFor continuous duty, selecting a servo based on rated torque rather than stall torque helps improve stability and longevity.\u003c\/p\u003e\n\u003cimg alt=\"3-wire servo connector pinout: brown ground (GND), red power (Vcc), orange signal\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/Kpower-HBL300-Servo-Motor_c8c3caea-10c2-4b82-aecd-245949411b0c.jpg?v=1782380287\"\u003e\u003cp\u003eStandard 3-wire hookup keeps installation straightforward: ground, power, and signal lines are color coded.\u003c\/p\u003e\n\u003cimg alt=\"Exploded view of servo motor parts including horn, housing, gears, bearings, motor, potentiometer sensor, and PCB\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/Kpower-HBL300-Servo-Motor_2e3cd012-aff8-41ab-b0cd-a8e7fb01f2d6.jpg?v=1782380295\"\u003e\u003cp\u003eInternal components like the gear stages, bearings, and position sensor are identified for maintenance and system design planning.\u003c\/p\u003e\n\u003cimg alt=\"Cross-industry application collage for drive\/control modules: robot vacuums, smart home, desktop robots, automation, drones, logistics\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/Kpower-HBL300-Servo-Motor_793e6d6c-c555-4f51-910a-6e2d5d624c77.jpg?v=1782380307\"\u003e\u003cp\u003eA solid fit for projects across service robotics, industrial automation, RC models, and UAV platforms.\u003c\/p\u003e\n\u003cimg alt=\"Product-oriented ODM service process timeline covering needs, evaluation, design, simulation, sampling, tooling, and mass production\" loading=\"lazy\" src=\"https:\/\/robotdoo.com\/cdn\/shop\/files\/Kpower-HBL300-Servo-Motor_49dba5f2-cad7-44b5-b5bf-63d093c35ea9.jpg?v=1782380315\"\u003e\u003cp\u003eODM support follows a structured path from requirements and design through sampling, tooling, and production.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Kpower","offers":[{"title":"HBL300","offer_id":47919662366950,"sku":"Kpower_HBL300_8c819d-1","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0954\/0326\/files\/Kpower-HBL300-Brushless-Metal-Gear-Servo-Motor-306kgcm.jpg?v=1782380620","url":"https:\/\/robotdoo.com\/products\/kpower-hbl300-servo","provider":"RobotDoo","version":"1.0","type":"link"}