Tamiya (#70097) Twin Gearbox DC Motor

Tamiya (#70097) Twin Gearbox DC Motor Tamiyas twin-motor gearbox consists of two independent motors and gearboxes in one compact housing, making it perfect for small robots. You can assemble the gearboxes to have a 58:1 or a 204:1 gear ratio. The Tamiya twin-motor gearbox is a small (3-inch long) plastic gearbox. It contains two small DC motors that drive separate 3mm hexagonal output shafts. There are two ways to put the kit together: with a high-speed 58:1 gear ratio or with a slower 203:1 gear ratio. Either way, the motors provide plenty of power to drive any small robot. Color options 70097 twin motor gearbox This gearbox is solid gray and comes packaged in a box. 89915 twin motor gearbox This gearbox is clear and comes packaged in a plastic bag. Specification : Typical operating voltage: 3 V Gear ratio options: 58:1 and 204:1 Free-run motor shaft speed @ 3V: 12300 rpm1 Free-run current @ 3V: 150 mA2 Stall current @ 3V: 2100 mA Motor shaft stall torque @ 3V: 0.5 ozin3 Color: gray Notes: (1) A theoretical speed of the gearbox output shaft can be computed by dividing this speed by the gear ratio. (2) This is the no-load current of the motor when disconnected from the gears in the gearbox; the no-load current of the entire gearbox with the motor connected will be slightly higher and will vary depending on the gear ratio. (3) A theoretical torque of the gearbox output shaft can be computed by multiplying this torque by the gear ratio.