These micro gearmotors are incredibly tough and feature full metal gears. They have a gear ratio of 5:1 and operate up to 12 volts and have a stall torque of 2 oz-in. and a max speed of 4900 RPM. Each micro gearmotor sports a 3mm D-shaft.
Note: The micro gearmotor enclosures are sold separately, you can find them here.
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