These tiny brushed DC gearmotors are available in a wide range of gear ratios—from 5:1 up to 1000:1—and with five different motors: high-power 6 V and 12 V motors with long-life carbon brushes (HPCB), and high-power (HP), medium power (MP), and low power (LP) 6 V motors with shorter-life precious metal brushes. The 6 V and 12 V HPCB motors offer the same performance at their respective nominal voltages, just with the 12 V motor drawing half the current of the 6 V motor. The 6 V HPCB and 6 V HP motors are identical except for their brushes, which only affect the lifetime of the motor.

The HPCB versions (shown on the left in the picture below) can be differentiated from versions with precious metal brushes (shown on the right) by their copper-colored terminals. Note that the HPCB terminals are 0.5 mm wider than those on the other micro metal gearmotor versions (2 mm vs. 1.5 mm), and they are about 1 mm closer together (6 mm vs. 7 mm).

Versions of these gearmotors are also available with an additional 1 mm-diameter output shaft that protrudes from the rear of the motor. This 4.5 mm-long rear shaft rotates at the same speed as the input to the gearbox and offers a way to add an encoder, such as our encoders for micro metal gearmotors (see the picture on the right), to provide motor speed or position feedback.

With the exception of the 1000:1 gear ratio versions, all of the micro metal gearmotors have the same physical dimensions, so one version can be easily swapped for another if your design requirements change.

Please see the micro metal gearmotor datasheet (5MB pdf) for more information, including detailed performance graphs for each micro metal gearmotor version. You can also use our dynamically sortable micro metal gearmotor comparison table to search for the gearmotor that offers the best combination of speed, torque, and current draw for your particular application. A more basic comparison table is available below.

Rated Voltage	Motor Type	Stall Current	No-Load Current	No-Load Speed (RPM)	Extrapolated Stall Torque		Max Power (W)	Single-Shaft (Gearbox Only)	Dual-Shaft (Gearbox & Motor)
					(kg ⋅ cm)	(oz ⋅ in)
12 V	high-power, carbon brushes (HPCB)	0.75 A	100 mA	6800	0.09	1.3	–	5:1 HPCB 12V	5:1 HPCB 12V dual-shaft
			80 mA	3400	0.17	2.4	1.5	10:1 HPCB 12V	10:1 HPCB 12V dual-shaft
				2200	0.25	3.5	1.4	15:1 HPCB 12V	15:1 HPCB 12V dual-shaft
				1100	0.39	5.4	1.1	30:1 HPCB 12V	30:1 HPCB 12V dual-shaft
				650	0.67	9.3	1.1	50:1 HPCB 12V	50:1 HPCB 12V dual-shaft
				450	1.0	14	1.1	75:1 HPCB 12V	75:1 HPCB 12V dual-shaft
				330	1.3	18	1.1	100:1 HPCB 12V	100:1 HPCB 12V dual-shaft
				220	1.8	25	1.0	150:1 HPCB 12V	150:1 HPCB 12V dual-shaft
				160	2.5	35	1.0	210:1 HPCB 12V	210:1 HPCB 12V dual-shaft
				130	3.0	42	1.1	250:1 HPCB 12V	250:1 HPCB 12V dual-shaft
				110	3.3	46	1.0	298:1 HPCB 12V	298:1 HPCB 12V dual-shaft
				85	5.0	69	1.1	380:1 HPCB 12V	380:1 HPCB 12V dual-shaft
				35	10	140	–	1000:1 HPCB 12V	1000:1 HPCB 12V dual-shaft
6 V	high-power, carbon brushes (HPCB)	1.5 A	170 mA	6500	0.09	1.3	–	5:1 HPCB 6V	5:1 HPCB 6V dual-shaft
			150 mA	3300	0.17	2.4	1.3	10:1 HPCB 6V	10:1 HPCB 6V dual-shaft
				2100	0.25	3.5	1.3	15:1 HPCB 6V	15:1 HPCB 6V dual-shaft
				1100	0.45	6.2	1.2	30:1 HPCB 6V	30:1 HPCB 6V dual-shaft
				650	0.74	10