Pololu High-Power 100:1 6V Micro Metal Gearmotor

PololuSKU: POL-1101
Sale price £15.75
incl. VAT
excl. VAT
Only 15 units left

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This is a Pololu miniature high-power (HP), 6V brushed DC motor with a 100.37:1 (100:1) metal gearbox. It has a cross-section of 10×12 mm, and the D-shaped gearbox output shaft is 9mm long and 3mm in diameter.

We stock a range of these Pololu tiny brushed DC gearmotors, available in a range of gear ratios in either high-power (HP), medium-power (MP) or low-power (LP) with precious metal brushes. In general, these kinds of motors can run at voltages above and below their nominal voltages; lower voltages might not be practical, and higher voltages could start negatively affecting the life of the motor.

With the exception of the 1000:1 gear ratio versions (not currently stocked), 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 datasheet for more information, including detailed performance graphs for each micro metal gearmotor version available from Pololu.?

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 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 in 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.

Key Specifications

  • Voltage: 6V
  • No-load performance: 310 RPM, 100mA
  • Stall extrapolation: 1.7 kg⋅cm (24 oz⋅in), 1.6 A

Full Specifications

Gear ratio 100.37:1
No-load speed @ 6V 310 rpm
No-load current @ 6V 0.10 A
Stall current @ 6V 1.6 A
Stall torque @ 6V 1.7 kg·cm
Max output power @ 6V 1.3 W
Extended motor shaft? N
Motor type 1.6A stall @ 6V (HP 6V)
Max efficiency @ 6V 37%
Speed at max efficiency 250 rpm
Torque at max efficiency 0.29 kg·cm
Current at max efficiency 0.33 A
Output power at max efficiency 0.73 W
Size 10 × 12 × 26 mm
Weight 9.5 g
Shaft diameter 3mm



In terms of size, these gearmotors are very similar to Sanyo’s popular 12 mm NA4S DC gearmotors, and gearmotors with this form factor are occasionally referred to as N20 motors.

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