DiamondHobby 40KG Waterproof Digital Servo 8.4V High Torque Full Metal Brushless Motor Stainless Steel Gear for RC Car,Robotic DIY,Off-Road Buggy,Crawler Truck

Full waterproof servo to maintain good water tightness in wet conditions.Extremely strong unique steel gears ensure long life and durability.Extremely strong hardened steel gears, CNC full metal case,ensure long-life and durability.The high-performance Brushless motor and high-precision potentiometer provide high speed,fast response,high efficiency,low power consumption,stable performance and strong anti-interference ability.Ideal For:1/10,1/8,1/6 Scale RC Car/Crawler/Truck/Buggy/Off Road,Robot, Boat,helicopter,robots,mechanical arms,and others remote control toys.Dimensions: 40 x 20 x 42 mm ( 1.57 x 0.78 x 1.6 in), Weight: 85g<b>Electrical Specification (Function of the Performance):</b><br>Operating speed (at no load): 6.0V--0.10sec/60° ; 7.2V--0.09sec/60°.<br>Running current (at no load): 6.0V--300mA ;7.2V--400mA;<br>Stall torque (at locked): 6.0V--38kg-cm;7.2V--40kg-cm;<br>Stall current (at locked): 6.0V--4-5A;7.2V--5-7A;<br>Idle current (a