This is low cost metal gear RC servo with 1.80kg.cm holding torque (at 4.8V) is perfect solution for student robotic projects whom build arms or linkages. The advantage of RC servo over the DC brush motor is the ability to control its rotation angle.
Specification:
Origin: China
Compatible with Arduino Servo library.
Plastics gears
Operating Voltage: 4.8 - 6VDC
Speed at 4.80V(no load): 0.1 s/60°
Torque at 4.80V : 1.8 kg.cm (~0.1765 N.m)
Size: 23.0 x12.2 x 29.0mm
Weight: 9.0g
Rotation angle: 180 degree
Package includes plastic servo horn and accessories