Micro Metal Gearmotors with Extended Motor Shafts

This category contains the versions of our micro metal gearmotors that have extended motor shafts, which allow for the addition of encoders like our magnetic encoder pair kit. These gearmotors are all listed in the right-most column of our full micro metal gearmotor table below.

Motor Type Stall
Current
@ 6 V
No-Load
Speed
@ 6 V
Approximate
Stall Torque
@ 6 V


Single-Shaft
(Gearbox Only)


Dual-Shaft
(Gearbox & Motor)
high-power,
carbon brushes
(HPCB)
1600 mA 3000 RPM 4 oz-in 10:1 HPCB
1000 RPM 9 oz-in 30:1 HPCB
625 RPM 15 oz-in 50:1 HPCB
400 RPM 22 oz-in 75:1 HPCB
320 RPM 30 oz-in 100:1 HPCB
200 RPM 40 oz-in 150:1 HPCB
140 RPM 50 oz-in 210:1 HPCB
120 RPM 60 oz-in 250:1 HPCB
100 RPM 70 oz-in 298:1 HPCB
32 RPM 125 oz-in 1000:1 HPCB
high-power
(HP)


(same specs as
HPCB above)
1600 mA 6000 RPM 2 oz-in 5:1 HP
3000 RPM 4 oz-in 10:1 HP 10:1 HP dual-shaft
1000 RPM 9 oz-in 30:1 HP 30:1 HP dual-shaft
625 RPM 15 oz-in 50:1 HP 50:1 HP dual-shaft
400 RPM 22 oz-in 75:1 HP 75:1 HP dual-shaft
320 RPM 30 oz-in 100:1 HP 100:1 HP dual-shaft
200 RPM 40 oz-in 150:1 HP 150:1 HP dual-shaft
140 RPM 50 oz-in 210:1 HP
120 RPM 60 oz-in 250:1 HP
100 RPM 70 oz-in 298:1 HP 298:1 HP dual-shaft
32 RPM 125 oz-in 1000:1 HP 1000:1 HP dual-shaft
medium-power
(MP)
700 mA 2200 RPM 3 oz-in 10:1 MP 10:1 MP dual-shaft
730 RPM 8 oz-in 30:1 MP
420 RPM 13 oz-in 50:1 MP
290 RPM 17 oz-in 75:1 MP 75:1 MP dual-shaft
220 RPM 19 oz-in 100:1 MP 100:1 MP dual-shaft
150 RPM 24 oz-in 150:1 MP
75 RPM 46 oz-in 298:1 MP
low-power 360 mA 2500 RPM 1 oz-in 5:1
1300 RPM 2 oz-in 10:1
440 RPM 4 oz-in 30:1 30:1 dual-shaft
250 RPM 7 oz-in 50:1 50:1 dual-shaft
170 RPM 9 oz-in 75:1
120 RPM 12 oz-in 100:1 100:1 dual-shaft
85 RPM 17 oz-in 150:1
60 RPM 27 oz-in 210:1
50 RPM 32 oz-in 250:1
45 RPM 40 oz-in 298:1 298:1 dual-shaft
14 RPM 70 oz-in 1000:1

Note: Stalling gearmotors can greatly decrease their lifetimes, occasionally resulting in immediate damage to the gearbox. This is especially true for the higher gear ratios, such as the 298:1 and 1000:1 versions, which can generate enough torque to damage themselves. The stall torque values given for the two 1000:1 motors are theoretical, and we strongly recommend you avoid stalling them. Prolonged stalls (on the order of seconds) can result in thermal damage to the motor windings and brushes, especially for the versions that use high-power (HP) motors.

Products in category “Micro Metal Gearmotors with Extended Motor Shafts”

Pololu item #: 2202
Price: $16.95
Quantity:

This gearmotor is a miniature low-power brushed DC motor with a 29.86:1 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 specs at 6 V: 440 RPM and 40 mA with no load, 4 oz-in (0.3 kg-cm) and 0.36 A at stall.

Pololu item #: 2203
Price: $16.95
Quantity:

This gearmotor is a miniature low-power brushed DC motor with a 51.45:1 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 specs at 6 V: 250 RPM and 40 mA with no load, 7 oz-in (0.5 kg-cm) and 0.36 A at stall.

Pololu item #: 2204
Price: $16.95
Quantity:

This gearmotor is a miniature low-power brushed DC motor with a 100.37:1 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 specs at 6 V: 120 RPM and 40 mA with no load, 12 oz-in (0.9 kg-cm) and 0.36 A at stall.

Pololu item #: 2208
Price: $16.95
Quantity:

This gearmotor is a miniature low-power brushed DC motor with a 297.92:1 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 specs at 6 V: 45 RPM and 40 mA with no load, 40 oz-in (2.9 kg-cm) and 0.36 A at stall.

Pololu item #: 2377
Price: $16.95
Quantity:

This gearmotor is a miniature medium-power 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 specs at 6 V: 2200 RPM and 40 mA with no load, 3 oz-in (0.2 kg-cm) and 0.7 A at stall.

Pololu item #: 2380
Price: $16.95
Quantity:

This gearmotor is a miniature medium-power brushed DC motor with a 75.81:1 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 specs at 6 V: 290 RPM and 40 mA with no load, 17 oz-in (1.2 kg-cm) and 0.7 A at stall.

Pololu item #: 2381
Price: $16.95
Quantity:

This gearmotor is a miniature medium-power brushed DC motor with a 100.37:1 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 specs at 6 V: 220 RPM and 40 mA with no load, 19 oz-in (1.4 kg-cm) and 0.7 A at stall.

Pololu item #: 2211
Price: $16.95
Quantity:

This gearmotor is a miniature high-power 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 specs at 6 V: 3000 RPM and 120 mA with no load, 4 oz-in (0.3 kg-cm) and 1.6 A at stall.

Pololu item #: 2212
Price: $16.95
Quantity:

This gearmotor is a miniature high-power brushed DC motor with a 29.86:1 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 specs at 6 V: 1000 RPM and 120 mA with no load, 9 oz-in (0.6 kg-cm) and 1.6 A at stall.

Pololu item #: 2213
Price: $16.95
Quantity:

This gearmotor is a miniature high-power brushed DC motor with a 51.45:1 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 specs at 6 V: 625 RPM and 120 mA with no load, 15 oz-in (1.1 kg-cm) and 1.6 A at stall.

Pololu item #: 2215
Price: $16.95
Quantity:

This gearmotor is a miniature high-power brushed DC motor with a 75.81:1 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 specs at 6 V: 400 RPM and 120 mA with no load, 22 oz-in (1.6 kg-cm) and 1.6 A at stall.

Pololu item #: 2214
Price: $16.95
Quantity:

This gearmotor is a miniature high-power brushed DC motor with a 100.37:1 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 specs at 6 V: 320 RPM and 120 mA with no load, 30 oz-in (2.2 kg-cm) and 1.6 A at stall.

Pololu item #: 2218
Price: $16.95
Quantity:

This gearmotor is a miniature high-power brushed DC motor with a 297.92:1 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 specs at 6 V: 100 RPM and 120 mA with no load, 70 oz-in (5 kg-cm) and 1.6 A at stall.

Pololu item #: 2373
Price: $23.95
Quantity:

This gearmotor is a miniature high-power brushed DC motor with a 986.41:1 metal gearbox, making it a great choice for applications requiring fine control at very low speeds. 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 specs at 6 V: 32 RPM and 120 mA with no load, 125 oz-in (9 kg-cm) and 1.6 A at stall. (Note: stall torque and current specifications are theoretical values; stalling the motor will damage the gearbox.)

Related Products

Optical Encoder Pair Kit for Micro Metal Gearmotors, 5V
Magnetic Encoder Pair Kit for Micro Metal Gearmotors, 12 CPR, 2.7-18V
Optical Encoder Pair Kit for Micro Metal Gearmotors, 3.3V
Pololu Micro Metal Gearmotor Bracket Extended Pair
Pololu Micro Metal Gearmotor Bracket Pair - Black

Related Categories

Micro Metal Gearmotors
Encoders for Micro Metal Gearmotors
Brushed DC Motor Controllers
Brushed DC Motor Drivers
Robot Controllers
Pololu Wheels and Tracks
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