{"product_id":"sv4012-12-shv-4-pole-brushless-low-profile-servo-42-0kgf-cm-0-10sec-60-for-rc-cars-fixed-wings-robotics","title":"KST SV4012-12 SHV 12V Low Profile 4-Pole Brushless Servo 42Kgf.cm 0.10sec for RC Cars \u0026 Aircraft","description":"\u003cp\u003eDelivering an astonishing \u003cstrong\u003e42.0 kgf.cm of stall torque\u003c\/strong\u003e in a compact 25.5mm low-profile casing, the \u003cstrong\u003eKST SV4012-12\u003c\/strong\u003e redefines torque density for competitive RC racing cars, large-scale fixed-wing aircraft, and high-load robotics. Powered by an advanced \u003cstrong\u003e4-pole brushless DC motor\u003c\/strong\u003e, native 3S LiPo \/ 12V direct drive capability, hardened steel gears, and an expansive \u003cstrong\u003e200° total default travel angle\u003c\/strong\u003e, the SV4012-12 unleashes brutal holding power and a blisteringly fast 0.10s\/60° response without requiring heavy external voltage regulators.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Torque 4-Pole Brushless Motor:\u003c\/strong\u003e Advanced 4-pole rotor architecture delivers significantly higher electromagnetic torque density, cooler continuous operation, and ultra-smooth linear response under extreme steering and aerodynamic loads.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColossal 42.0 kgf.cm Torque in Low-Profile Form:\u003c\/strong\u003e At just 25.5mm in height and 50g, it easily installs into low-clearance 1\/10 and 1\/8 RC car chassis, thin wing bays, and compact robotic joints while delivering standard-size powerhouse torque.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuper High-Voltage (SHV) Direct Drive:\u003c\/strong\u003e Native 8.4V–13.0V operating range allows direct connection to 3S LiPo batteries — eliminating bulky BEC voltage regulators, minimizing weight, and simplifying airframe and chassis wiring.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExpansive 200° Default Travel:\u003c\/strong\u003e Wide ±100° (200° total) factory travel angle provides exceptional throw for crawlers, robotic articulation, and high-deflection aerobatic control surfaces (programmable endpoints).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardened Steel Geartrain:\u003c\/strong\u003e Dual ball-bearing supported metal drive train withstands repeated curb collisions, rough track landings, and heavy hinge flutter without developing gear slop.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull CNC Aluminum Casing:\u003c\/strong\u003e Precision-machined aerospace alloy housing delivers maximum torsional rigidity, precise chassis fitment, and rapid heat dissipation during extended endurance racing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProgrammable \u0026amp; Soft Start:\u003c\/strong\u003e Customize travel limits, direction, and soft-start ramp profiles to safeguard linkages and drivetrains on power-up.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e SV4012-12 SHV Low Profile Brushless Servo\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e DC 12.0V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e DC 8.4V – 13.0V (2S–3S LiPo Direct Drive)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Type:\u003c\/strong\u003e 4-Pole Brushless DC Motor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGear Set Material:\u003c\/strong\u003e Hardened Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCase Material:\u003c\/strong\u003e CNC Aluminum Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e Dual Ball Bearings (2BB)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePosition Sensor:\u003c\/strong\u003e Potentiometer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Frequency:\u003c\/strong\u003e 1520μs \/ 333Hz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDefault Travel Angle:\u003c\/strong\u003e ±100° (200° Total, Programmable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -20°C to +65°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSoft Start \/ Programmability:\u003c\/strong\u003e Yes (Programmable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 40.5 × 20.0 × 25.5 mm (±0.2mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 50g (±10%)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003ePerformance Ratings\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStall Torque:\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003e35.0 kgf.cm @ 8.4V\u003c\/li\u003e\n      \u003cli\u003e40.0 kgf.cm @ 12.0V\u003c\/li\u003e\n      \u003cli\u003e42.0 kgf.cm @ 13.0V\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Speed (No-Load):\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003e0.16 sec\/60° @ 8.4V\u003c\/li\u003e\n      \u003cli\u003e0.12 sec\/60° @ 12.0V\u003c\/li\u003e\n      \u003cli\u003e0.10 sec\/60° @ 13.0V\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStart Current:\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003e2.79A @ 8.4V\u003c\/li\u003e\n      \u003cli\u003e3.65A @ 12.0V\u003c\/li\u003e\n      \u003cli\u003e4.05A @ 13.0V\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eDimensions \u0026amp; Sizing\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV4012-12-02.png?v=1789630861\" alt=\"KST SV4012-12 Servo Dimensions Diagram 1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV4012-12-01.png?v=1789630861\" alt=\"KST SV4012-12 Servo Dimensions Diagram 2\"\u003e\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eDocumentation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV4012-12_Technical_Specifcation.pdf?v=1789630873\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload SV4012-12 Technical Specification Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KST","offers":[{"title":"Default Title","offer_id":50446484242682,"sku":null,"price":98.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/8280\/1402\/files\/SV4012-12-2.png?v=1789014762","url":"https:\/\/kstdigital.com\/products\/sv4012-12-shv-4-pole-brushless-low-profile-servo-42-0kgf-cm-0-10sec-60-for-rc-cars-fixed-wings-robotics","provider":"KSTDigital","version":"1.0","type":"link"}