This gearmotor is a miniature 27.5 x 12 x 10mm, low-current brushed DC motor with 986.41:1 metal gearbox, similar to Sanyo’s popular 12 mm gearmotors. These units have a 9.3mm long, 3 mm-diameter D-shaped output shaft.

Key specs at 6 V: 31 RPM and 70 mA free-run, 12kg.cm (170 oz-in) and 1.6 A stall. Note stalling this motor will damage the gearbox.

Note: Stalling or overloading gearmotors can greatly decrease their lifetimes and even result in immediate damage. The recommended upper limit for instantaneous torque is 2.5 kg-cm (35 oz-in) for the 380:1 and 1000:1 gearboxes, and 2 kg-cm (25 oz-in) for all the other gear ratios; we strongly advise keeping applied loads well under this limit. Stalls can also result in rapid (potentially on the order of seconds) thermal damage to the motor windings and brushes, especially for the versions that use high-power (HP and HPCB) motors; a general recommendation for brushed DC motor operation is 25% or less of the stall current.