SPG30 is 1.1W DC brushed motor with compact size, a low cost solution for projects such as medium size robot, omni drive robot, mechanism, etc. This model of SPG30 brushed motor comes with gear ratio of 10:1 and can operate up to 6 volts. Each motor is 6mm diameter D-shaft.
Note: Lower voltage might not have enough torque to drive the wheel or mechanism; higher voltage will provide higher torque and higher speed, but it will shorten the life of the motor.
Mounting
You may need:
2A motor driver shield - For Arduino user
Plastic Wheel - for mobile robot
Coupling - for mounting customized wheel or mechanism
Bracket - for mounting motor