GM2

Solarbotics Gear Motor 2

£5.88 £4.90

This 224:1 gearmotor is very comparable to a hobby servo for power, at a fraction of the cost!

These units have an overall size of 55mm x 48mm x 23mm thick, while only weighing 37grams.

Or

This motor offers 50 in.oz of torque, rotating 360 degrees every 1.6 seconds (38 rpm just a hair slower than a servo), at 5V, drawing 600mA at stall (free running at 52mA).