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35:1 Mini Metal Gearmotor
This gearmotor is a miniature (0.94" x 0.39" x 0.47"), low-current brushed DC motor with 30:1 metal gearbox, similar to Sanyo.These units have a 0.365"-long, 3 mm-diameter D-shaped output shaft that matches the micro metal gearmotor output shafts.
This brushed DC motor has a long (0.365" or 9.27 mm, not 8mm as shown in the drawing below), 3 mm-diameter D-shaped metal output shaft that matches our assortment of Pololu wheels and the Solarbotics RW2 rubber wheel. Alternatively, you can use the Pololu universal mounting hub to mount custom wheels and mechanism to the micro metal gearmotor’s output shaft.
The brass faceplate has two mounting holes threaded for M2 screws (2 mm diameter, 0.4 mm thread pitch).
Note: this gearmotor is not compatible with our Sanyo-style micro gearmotor mounting brackets (products 989 and 1089).
35:1 mini metal gearmotor dimensions (units in mm).
Pololu wheel 32×7mm on a micro metal gearmotor.
Pololu wheel 42×19mm with micro metal gearmotor.
Black Pololu 90×10mm wheel on a Pololu micro metal gearmotor.
These motors are intended for use at 9 V, which means you can get more speed and torque out of this motor than is listed in the 6 V specs. In general, these kinds of motors can run at voltages above and below this nominal voltage, so they should comfortably operate in the 3 – 12 V range (the motor can begin rotating at voltages as low as 0.5 V). Lower voltages might not be practical, and higher voltages could start negatively affecting the life of the motor.
At 6 V, this gearmotor will have a no-load RPM of around 350 with a free-run current of 70 mA, a stall current of 1.5 A, and a stall torque of around 14 oz-in (1 kg-cm).
Size: 38 x 12 x 15 mm
Weight: 0.80 oz
Shaft diameter: 3 mm
Gear ratio: 35:1
Free-run speed @ 6V: 350 rpm
Free-run current @ 6V: 70 mA
Stall current @ 6V: 1500 mA
Stall torque @ 6V: 20 oz·in