These micro gearmotors are extremely durable and come with full metal gears. They have a 150:1 gear ratio, can operate at up to 12 volts, and offer a stall torque of 45 oz - in. and a maximum speed of 175 RPM. Each one features a 3mm D - shaft. Note that the micro gearmotor enclosures are sold separately and can be found here. Key features include a 6 - 12 volts operating voltage, a 150:1 gear ratio, a stall torque of 17/45 oz - in. (6/12V), a speed of 90/175 RPM (6/12V), a no - load current of 40/70 mA (6/12V), a stall current of 360/1600 mA (6/12V), and it's DC reversible. Dimensions are as follows: motor size is 26 x 12 x 10mm, shaft size is 3mm in diameter and 10mm in length, and it weighs 17g.
Using this micro gearmotor is easy. First, make sure to connect it to a power source within the 6 - 12 volts range. You can reverse its direction as it's DC reversible. When using, keep in mind that the enclosures are sold separately, so you'll need to install them if you have them. As for maintenance, try to keep it clean and free from dust. If it starts to overheat or the performance drops, check the current values. Don't exceed the maximum voltage of 12 volts to avoid damaging the motor. Also, handle it gently due to its relatively light weight of 17g.
