The Dynamixel MX-106R RS-485 Servo is the newest generation servo from Robotis. Equipped with an ARM Cortex M3 features a PID control algorithm and provides feedback information such as speed, temperature, position and load.
This is a set of wheelchair motors and make great heavy duty robot motors. One left motor and one right motor. They are right angle gear drives with a release and electric brakes. They are 24VDC and the operating speed is 120 RPM.