150:1 Micro Metal Gearmotor HPCB 6V with Extended Motor Shaft Pololu

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$3,439.89

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This gearmotor is a miniature high-power, 6 V brushed DC motor with long-life carbon brushes and a 9.96:1 metal gearbox. It has a cross section of 10 × 12 mm, and the D-shaped gearbox output shaft is 9 mm long and 3 mm in diameter. This version also has a 4.5 × 1 mm extended motor shaft.

Key specifications:

voltageno-load performancestall extrapolation
6 V3300 RPM, 100 mA0.17 kg⋅cm (2.4 oz⋅in), 1.5 A

 

Overview

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 (2MB 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 for search for the gearmotor that offers the best blend 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 Vhigh-power,
carbon brushes
(HPCB)
0.75 A0.06 A60000.091.35:1 HPCB 12V5:1 HPCB 12V dual-shaft
30000.172.41.510:1 HPCB 12V10:1 HPCB 12V dual-shaft
11000.395.41.130:1 HPCB 12V30:1 HPCB 12V dual-shaft
6500.679.31.150:1 HPCB 12V50:1 HPCB 12V dual-shaft
4501.0141.175:1 HPCB 12V75:1 HPCB 12V dual-shaft
3301.3181.1100:1 HPCB 12V100:1 HPCB 12V dual-shaft
2201.8251.0150:1 HPCB 12V150:1 HPCB 12V dual-shaft
1602.5351.0210:1 HPCB 12V210:1 HPCB 12V dual-shaft
1303.0421.1250:1 HPCB 12V250:1 HPCB 12V dual-shaft
1103.3461.0298:1 HPCB 12V298:1 HPCB 12V dual-shaft
855.0691.1380:1 HPCB 12V380:1 HPCB 12V dual-shaft
35101401000:1 HPCB 12V1000:1 HPCB 12V dual-shaft
6 Vhigh-power,
carbon brushes
(HPCB)
1.5 A0.10 A60000.091.35:1 HPCB 6V5:1 HPCB 6V dual-shaft
30000.172.41.310:1 HPCB 6V10:1 HPCB 6V dual-shaft
11000.456.21.230:1 HPCB 6V30:1 HPCB 6V dual-shaft
6500.74101.250:1 HPCB 6V50:1 HPCB 6V dual-shaft
4301.1151.375:1 HPCB 6V75:1 HPCB 6V dual-shaft
3301.6221.3100:1 HPCB 6V100:1 HPCB 6V dual-shaft
2202.0281.1150:1 HPCB 6V150:1 HPCB 6V dual-shaft
1602.8391.1210:1 HPCB 6V210:1 HPCB 6V dual-shaft
1303.2441.1250:1 HPCB 6V250:1 HPCB 6V dual-shaft
1103.4471.0298:1 HPCB 6V298:1 HPCB 6V dual-shaft
855.0691.1380:1 HPCB 6V380:1 HPCB 6V dual-shaft
33111501000:1 HPCB 6V1000:1 HPCB 6V dual-shaft
6 Vhigh-power
(HP)
1.6 A0.07 A60000.111.55:1 HP 6V5:1 HP 6V dual-shaft
30000.223.01.610:1 HP 6V10:1 HP 6V dual-shaft
10000.577.91.530:1 HP 6V30:1 HP 6V dual-shaft
5900.86121.350:1 HP 6V50:1 HP 6V dual-shaft
4101.3181.475:1 HP 6V75:1 HP 6V dual-shaft
3101.7241.3100:1 HP 6V100:1 HP 6V dual-shaft
2102.4331.2150:1 HP 6V150:1 HP 6V dual-shaft
1503.0421.1210:1 HP 6V210:1 HP 6V dual-shaft
1203.4471.1250:1 HP 6V250:1 HP 6V dual-shaft
1004.0561.1298:1 HP 6V298:1 HP 6V dual-shaft
845.5761.1380:1 HP 6V380:1 HP 6V dual-shaft
31121701000:1 HP 6V1000:1 HP 6V dual-shaft
6 Vmedium-power
(MP)
0.67 A0.04 A44000.060.85:1 MP 6V5:1 MP 6V dual-shaft
22000.111.510:1 MP 6V10:1 MP 6V dual-shaft
7200.334.60.5730:1 MP 6V30:1 MP 6V dual-shaft
4200.547.50.5550:1 MP 6V50:1 MP 6V dual-shaft
2900.78110.5475:1 MP 6V75:1 MP 6V dual-shaft
2200.94130.50100:1 MP 6V100:1 MP 6V dual-shaft
1501.3180.48150:1 MP 6V150:1 MP 6V dual-shaft
1001.7240.46210:1 MP 6V210:1 MP 6V dual-shaft
882.2310.48250:1 MP 6V250:1 MP 6V dual-shaft
732.4330.44298:1 MP 6V298:1 MP 6V dual-shaft
573.6500.53380:1 MP 6V380:1 MP 6V dual-shaft
226.5901000:1 MP 6V1000:1 MP 6V dual-shaft
6 Vlow-power
(LP)
0.36 A0.02 A25000.050.75:1 LP 6V5:1 LP 6V dual-shaft
13000.101.410:1 LP 6V10:1 LP 6V dual-shaft
4500.294.00.3130:1 LP 6V30:1 LP 6V dual-shaft
2700.446.10.2950:1 LP 6V50:1 LP 6V dual-shaft
1800.648.90.2975:1 LP 6V75:1 LP 6V dual-shaft
1300.74100.25100:1 LP 6V100:1 LP 6V dual-shaft
901.1150.25150:1 LP 6V150:1 LP 6V dual-shaft
651.6220.25210:1 LP 6V210:1 LP 6V dual-shaft
541.7240.23250:1 LP 6V250:1 LP 6V dual-shaft
452.0280.22298:1 LP 6V298:1 LP 6V dual-shaft
362.9400.27380:1 LP 6V380:1 LP 6V dual-shaft
135.5761000:1 LP 6V1000:1 LP 6V dual-shaft

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 the 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 on 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.

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.

Details for item #2211

Exact gear ratio: 35×3713×109.96:135×3713×10≈9.96:1

This gearmotor is a miniature high-power, 6 V brushed DC motor with a 9.96:1 metal gearbox. It has a cross section of 10 × 12 mm, and the D-shaped gearbox output shaft is 9 mm long and 3 mm in diameter. This version also has a 4.5 × 1 mm extended motor shaft.

Key specifications:

voltageno-load performancestall extrapolation
6 V3000 RPM, 70 mA0.22 kg⋅cm (3.0 oz⋅in), 1.6 A

Gearmotor Dimensions

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. The versions with carbon brushes (HPCB) have slightly different terminal and end-cap dimensions than the versions with precious metal brushes, but all of the other dimensions are identical.

Dimensions of versions with carbon brushes (HPCB)

Dimensions of the Pololu micro metal gearmotors with carbon brushes (HPCB). Units are mm over [inches].

Dimensions of versions with precious metal brushes (LP, MP, and HP)

Dimensions of the Pololu micro metal gearmotors with precious metal brushes: low-power (LP), medium-power (MP), and high-power (HP). Units are mm over [inches].

These diagrams are also available as a downloadable PDF (262k pdf).

Motor Accessories

Pololu Wheel 32×7mm on a Micro Metal Gearmotor.
Black Pololu Wheel 70×8mm on a Pololu Micro Metal Gearmotor.
A pair of Pololu universal aluminum mounting hubs for 3 mm diameter shafts.
12mm Hex Wheel Adapter for 3mm Shaft on a Micro Metal Gearmotor.
Black micro metal gearmotor mounting bracket pair with included screws and nuts.
White micro metal gearmotor mounting bracket pair with included screws and nuts.
Pololu micro metal gearmotor bracket extended with micro metal gearmotor.
  • Quadrature encoders: We offer several quadrature encoders that work with our micro metal gearmotors.
Magnetic Encoder with Side-Entry Connector assembled on a Micro Metal Gearmotor with Extended Motor Shaft (JST cable not included).
Example of an installed micro metal gearmotor reflective optical encoder.

Note: The HPCB versions of our micro metal gearmotors are not compatible with our #2590 and #2591 optical encoders or our older #2598 magnetic encoders (the terminals are too wide to fit through the corresponding holes in the encoder boards). However, they are compatible with our newer #3081#4760, and #4761 magnetic encoders.

DRV8838 Single Brushed DC Motor Driver Carrier.
Pololu A4990 Dual Motor Driver Shield for Arduino, bottom view.
DRV8835 dual motor driver carrier.
  • Current sensors: We have an assortment of Hall effect-based current sensors to choose from for those who need to monitor motor current:
ACS711EX current sensor carrier -15.5A to +15.5A.
ACS714 current sensor carrier -5A to +5A.

We also incorporate these motors into some of our products, including our Zumo robot and 3pi robot :

Assembled Zumo 32U4 robot.
Pololu 3pi robot.

Selecting the Right Gearmotor

We offer a wide selection of metal gearmotors that offer different combinations of speed and torque. Our metal gearmotor comparison table can help you find the motor that best meets your project’s requirements.

Dimensions

Size:10 × 12 × 26 mm1
Weight:9.5 g
Shaft diameter:3 mm2

General specifications

Gear ratio:9.96:1
No-load speed @ 6V:3000 rpm
No-load current @ 6V:0.07 A
Stall current @ 6V:1.6 A
Stall torque @ 6V:0.22 kg·cm
Max output power @ 6V:1.6 W
Extended motor shaft?:Y
Motor type:1.6A stall @ 6V (HP 6V)

Performance at maximum efficiency

Max efficiency @ 6V:43 %
Speed at max efficiency:2300 rpm
Torque at max efficiency:0.046 kg·cm
Current at max efficiency:0.42 A
Output power at max efficiency:1.1 W

Notes:

1
Output shafts add 14 mm to the 26 mm length.
2
D shaft.
Micro metal gearmotor HPCB with long-life carbon brushes (left) next to one with precious metal brushes.
Micro metal gearmotor HPCB long-life carbon brushes (left) next to micro metal gearmotor HP precious metal brushes (right).
Black Pololu Wheel 70×8mm on a Pololu Micro Metal Gearmotor.
Black Pololu Wheel 90×10mm on a Pololu Micro Metal Gearmotor.
Pololu Wheel 32×7mm on a Micro Metal Gearmotor.
Magnetic Encoder on a Micro Metal Gearmotor with Extended Motor Shaft, assembled with ribbon cable wires.
12mm Hex Wheel Adapter for 3mm Shaft on a Micro Metal Gearmotor.
Micro metal gearmotor mounted to a piece of acrylic with black mounting bracket version.
Micro metal gearmotor mounted to a piece of acrylic with black mounting bracket version.
Pololu micro metal gearmotor bracket extended with micro metal gearmotor.
Pololu micro metal gearmotor bracket extended with micro metal gearmotor.
Micro metal gearmotor with Pololu wheel 42×19mm and extended bracket.
Micro metal gearmotor and Pololu wheel 42×19mm mounted with extended mounting bracket.
Pololu 5″ round robot chassis RRC04A with drive components and encoders mounted on top.
37D mm metal gearmotor next to a micro metal gearmotor for size comparison.
Dimensions of the Pololu micro metal gearmotors with precious metal brushes: low-power (LP), medium-power (MP), and high-power (HP). Units are mm over [inches].
Dimensions of the Pololu micro metal gearmotors with carbon brushes (HPCB). Units are mm over [inches].
An assortment of Pololu metal gearmotors.

File downloads

Datasheet for Pololu Micro Metal Gearmotors (2MB pdf)
Dimension diagrams of Pololu Micro Metal Gearmotors (262k pdf)
3D model of a Micro Metal Gearmotor with Extended Motor Shaft and a #1086 bracket (4MB step)
3D model of a Micro Metal Gearmotor with Extended Motor Shaft and a #1086 bracket (or #989 bracket, which is just a black version of the #1086).
3D model of a Micro Metal Gearmotor and a #1086 bracket (4MB step)
3D model of a Micro Metal Gearmotor and a #1086 bracket (or #989 bracket, which is just a black version of the #1086).
3D model of Micro Metal Gearmotors (single-shaft, precious metal brushes, not 1000:1) (11MB step)
3D model of low-power, medium-power, high-power Pololu Micro Metal Gearmotors. This diagram does not apply to the HPCB versions, dual-shaft versions, or 1000:1 gear ratios.
3D model of Micro Metal Gearmotors with extended motor shafts (precious metal brushes, not 1000:1) (11MB step)
3D model of low-power, medium-power, high-power Pololu Micro Metal Gearmotors with extended motor shafts. This diagram does not apply to the HPCB versions, single-shaft versions, or 1000:1 gear ratios.
3D model of 1000:1 Micro Metal Gearmotors (single-shaft, precious metal brushes) (14MB step)
3D model of Pololu Micro Metal Gearmotors with 1000:1 gearboxes. This diagram does not apply to the HPCB versions, dual-shaft versions, or other gear ratios.
3D model of 1000:1 Micro Metal Gearmotors with extended motor shafts (precious metal brushes) (14MB step)
3D model of Pololu Micro Metal Gearmotors with 1000:1 gearboxes and extended motor shafts. This diagram does not apply to the HPCB versions, single-shaft versions, or other gear ratios.
3D model of HPCB Micro Metal Gearmotors (single-shaft, carbon brushes, not 1000:1) (11MB step)
3D model of high-power carbon brush (HPCB) Pololu Micro Metal Gearmotors. This diagram does not apply to precious metal brush (i.e. non-HPCB) versions, dual-shaft versions, or 1000:1 gear ratios.
3D model of HPCB Micro Metal Gearmotors with extended motor shafts (carbon brushes, not 1000:1) (11MB step)
3D model of high-power carbon brush (HPCB) Pololu Micro Metal Gearmotors. This diagram does not apply to precious metal brush (i.e. non-HPCB) versions, single-shaft versions, or 1000:1 gear ratios.
3D model of 1000:1 HPCB Micro Metal Gearmotors (single-shaft, carbon brushes) (14MB step)
3D model of high-power carbon brush (HPCB) Pololu Micro Metal Gearmotors with 1000:1 gearboxes. This diagram does not apply to precious metal brush (i.e. non-HPCB) versions, dual-shaft versions, or other gear ratios.
3D model of 1000:1 HPCB Micro Metal Gearmotors with extended motor shafts (carbon brushes) (14MB step)
3D model of high-power carbon brush (HPCB) Pololu Micro Metal Gearmotors with 1000:1 gearboxes and extended motor shafts. This diagram does not apply to precious metal brush (i.e. non-HPCB) versions, single-shaft versions, or other gear ratios.
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