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Feature

This is a great arduino high torque servo motor, which can turn to a specified position
This little mini servo motor for Arduino is high in efficiency and power
Servo motors are small in size, and because they have built-in circuitry to control their movement, they can be connected directly to an Arduino.
Micro Robot Servo Motor - SG90 runs on electricity from a battery and spins at high RPM (rotations per minute) and very high torque
The SG90 mini servo motor is lightweight, high-quality and lightning-fast.The servo is designed to work with almost all the radio control systems.

Description

This is the most mini servo. Only weights 9 gram and gives you a 1.6kg.cm torque. Pretty strong regarding its size. Suitable for Beam type robot.
Besides,this is a very handy and cheap servo motor with nice performances. It is suitable for many lightweight applications.

Sepcificattion:
*Wayees -SG90 Servo Motor Arduino Gear
*Connector Wire Length 150MM
*Name: 9 grams of steering gear
*Size: 23mm*12.2mm*29mm(0.91*0.48*1.14inch)
*Motor Type:3-Pole
*Weight: 9 grams
*Modulation: Analog
*Gear Type:Plastic(Nylon)
*Rot./Support:Bushing
*Torsional moment:1.8kg/cm(4.8V)
*Working voltage: 4.8V
*temperature range :0 C --55 C
*Operating speed: 0.1 seconds /60 degree
*Dead Band Width: 10 microseconds
*Package Content: 5 Pcs SG90 Mini Micro Servo *Structure and material: Metallic copper gear, coreless motor, dual ball bearing
Servo Motor Applications
Servo motors were first used in the Remote Control (RC) world, usually to control the steering of RC cars or the flaps on a RC plane. With time, they found their uses in robotics, automation, and of course, the Arduino world.