We have 4 normal types which are almost identical:\\ **ES-030**\\ {{servo_es-030.gif:?200}}\\ **RS2**\\ {{servo-rs-2-jr.jpg:?200}}\\ Operating voltage: 4.8 < 6.0 v\\ Positioning time: 4.8 v I 6.0 v: 0.19s/60° I 0.11s/60°\\ Operating torque 4.8V I 6.0V: 3.2 kg.cm I 3.5 kg.cm\\ weight: ca. 39g\\ Torque: 3kg/cm\\ Gear: plastic\\ [[Parallax standard servo | Parallax standard servo]]\\ [[rc_car_servo_4519 | rc car servo_4519]]\\ \\ **HobbyKing™ HK15288A Analog BB/MG Servo**\\ {{::hobbyking_hk15288a_analog_servo.jpg?direct&300|}}\\ Torque: 9kg @ 4.8v, 8kg @ 6v\\ Weight: 51g\\ Speed: 0.21 / 60deg @ 4.8v, 0.20 / 60 deg @ 6v\\ Voltage: 4.8v~6v\\ Plug: JR style\\ Metal Gears\\ Dual Ball-race\\ \\ \\ Brown = 0 Red = 5V Yellow = Control We also have a few adapted servo's who now are continuous rotating servo's. They do not rotate to a certain position but\\ rotate continuously with a controllable speed and direction.\\ An explanation on how servo's work can be found[[http://www.electronicsplanet.ch/Roboter/Servo/intern/intern.htm| here]].\\ [[http://arduino.cc/en/Tutorial/Knob|Here you can find how to control a servo with your Arduino]]\\ \\ {{ ::servo-as.jpg?direct&300|}} If you want to design a wheel or arm that should be fixed on those servos, you can use {{:servo-as.zip|this}} for the hole for the axis.\\