Parallax's High Speed Continuous Rotation Servo offers easily controlled bi-directional rotation via simple pulse-width modulation. With about 3 times the RPM of the original Parallax Continuous Rotation Servo (900-00008), it makes an excellent drive motor for small, zippy robots.
Bidirectional continuous rotation, from 0 up to 180 RPM
Linear response to pulse-width modification for easy ramping
6 to 8 VDC input range is compatible with 5-cell AA battery packs