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).
|Size:||10 × 12 × 26 mm1|
|Shaft diameter:||3 mm2|
|No-load speed @ 6V:||100 rpm|
|No-load current @ 6V:||0.07 A|
|Stall current @ 6V:||1.6 A|
|Stall torque @ 6V:||4.0 kg·cm|
|Max output power @ 6V:||1.1 W|
|Extended motor shaft?:||N|
|Motor type:||1.6A stall @ 6V (HP 6V)|
|Max efficiency @ 6V:||31 %|
|Speed at max efficiency:||87 rpm|
|Torque at max efficiency:||0.65 kg·cm|
|Current at max efficiency:||0.31 A|
|Output power at max efficiency:||0.58 W|
- 1.Output shaft adds 9 mm to the 26 mm length.
- 2.D shaft.
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1x Pololu 298:1 Micro Metal Gearmotor HP 6V