Pololu Plastic Gearmotors

This tiny, cylindrical gearmotor consists of a coreless brushed DC motor and a 26:1 plastic planetary gearbox. The entire assembly has a diameter of just 6 mm (0.24″) and an extremely light weight of 1.2 g (0.042 oz), making it a great actuator for miniature robots and very small mechanisms.

Key specs at 6 V: 2500 RPM and 35 mA free-run, 1.5 oz-in (0.1 kg-cm) and 400 mA stall.

This tiny, cylindrical gearmotor consists of a coreless brushed DC motor and a 136:1 plastic planetary gearbox. The entire assembly has a diameter of just 6 mm (0.24″) and an extremely light weight of 1.3 g (0.046 oz), making it a great actuator for miniature robots and very small mechanisms.

Key specs at 6 V: 500 RPM and 45 mA free-run, 8 oz-in (0.6 kg-cm) and 400 mA stall.

This 228:1 gearbox with brushed DC motor has a low-current motor and provides power and speed that is comparable to an RC servo at a fraction of the cost. At 6 V, it has a free-run speed of 45 RPM and a stall torque of approximately 100 oz-in. Though the product picture shows two gearmotors, this product is for a single motor.

This 120:1 gearbox with brushed DC motor has a low-current motor and provides power and speed that is comparable to an RC servo at a fraction of the cost. At 6 V, it has a free-run speed of 85 RPM and a stall torque of approximately 75 oz-in. Though the product picture shows two gearmotors, this product is for a single motor.

This 200:1 gearbox with brushed DC motor has a low-current motor and provides power and speed that is comparable to an RC servo at a fraction of the cost. At 6 V, it has a free-run speed of 51 RPM and a stall torque of approximately 100 oz-in. Though the product picture shows two gearmotors, this product is for a single motor.

This 120:1 gearbox with brushed DC motor has a low-current motor and provides power and speed that is comparable to an RC servo at a fraction of the cost. At 6 V, it has a free-run speed of 85 RPM and a stall torque of approximately 75 oz-in. Though the product picture shows two gearmotors, this product is for a single motor.

This 130-size brushed DC motor has a recommended operation voltage of 3 – 12 V and is used in the larger Pololu plastic gearmotors. Approximate specifications at 6 V: free-run speed of 11,500 RPM, free-run current of 70 mA, and stall current of 800 mA.

This high-power, 130-size brushed DC motor can be used as a direct replacement for lower-power 130-size motors to get more torque and speed out of your gearmotor, but it will also draw more current and typically wear out faster. It has a recommended operating voltage of 1.5 V to 6 V and is compatible with the larger Pololu plastic gearmotors. Approximate specifications at 3 V: free-run speed of 17,000 RPM, free-run current of 250 mA, stall current of 3.85 A, stall torque of 0.75 oz-in.