6V High-Power (HP) 25D mm Gearmotors

These 25D mm gearmotors have high-power (LP), 6 V motors with a stall current of 6.5 A and a typical free-run current of 450 mA. The gearboxes, which are available in a wide range of gear ratios, all have 4 mm diameter, D-shaped output shafts. The following table shows all of the versions available with the HP 6V motor:

Rated
Voltage
Motor Type Stall
Current
@ Rated Voltage
No-Load
Speed
@ Rated Voltage
Approximate
Stall Torque
@ Rated Voltage


With Encoder


Without Encoder
6 V high-power
(HP)
6.5 A 10,000 RPM 5 oz-in 1:1 HP 6V w/encoder
2150 RPM 20 oz-in 4.4:1 HP 6V w/encoder 4.4:1 HP 6V
990 RPM 39 oz-in 9.7:1 HP 6V w/encoder 9.7:1 HP 6V
460 RPM 75 oz-in 20.4:1 HP 6V w/encoder 20.4:1 HP 6V
280 RPM 90 oz-in 34:1 HP 6V w/encoder 34:1 HP 6V
200 RPM 115 oz-in 47:1 HP 6V w/encoder 47:1 HP 6V
130 RPM 150 oz-in 75:1 HP 6V w/encoder 75:1 HP 6V
97 RPM 210 oz-in 99:1 HP 6V w/encoder 99:1 HP 6V
56 RPM 350 oz-in 172:1 HP 6V w/encoder 172:1 HP 6V

Note: Stalling or overloading gearmotors can greatly decrease their lifetimes and even result in immediate damage. For these gearboxes, the recommended upper limit for instantaneous torque is 200 oz-in (15 kg-cm); 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) motors; a general recommendation for brushed DC motor operation is 25% or less of the stall current.

Versions with other motors are also available. You can use the following selection boxes to choose from all of our 25D metal gearmotor versions:

Select options:

Products in category “6V High-Power (HP) 25D mm Gearmotors”

Pololu item #: 1570
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 4.4:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 2150 RPM and 550 mA (max) free-run, 20 oz-in (1.5 kg-cm) and 6.5 A stall.

Pololu item #: 2270
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 4.4:1 metal spur gearbox, and it has an integrated 48 CPR quadrature encoder on the motor shaft, which provides 211.2 counts per revolution of the gearbox’s output shaft. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 2150 RPM and 550 mA free-run, 20 oz-in (1.5 kg-cm) and 6.5 A stall.

Pololu item #: 1571
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 9.68:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 990 RPM and 550 mA (max) free-run, 39 oz-in (2.8 kg-cm) and 6.5 A stall.

Pololu item #: 2271
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 9.68:1 metal spur gearbox, and it has an integrated 48 CPR quadrature encoder on the motor shaft, which provides 464.64 counts per revolution of the gearbox’s output shaft. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 990 RPM and 550 mA free-run, 39 oz-in (2.8 kg-cm) and 6.5 A stall.

Pololu item #: 1572
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 20.4:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 460 RPM and 550 mA (max) free-run, 75 oz-in (5.5 kg-cm) and 6.5 A stall.

Pololu item #: 2272
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 20.4:1 metal spur gearbox, and it has an integrated 48 CPR quadrature encoder on the motor shaft, which provides 979.62 counts per revolution of the gearbox’s output shaft. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 460 RPM and 550 mA free-run, 75 oz-in (5.5 kg-cm) and 6.5 A stall.

Pololu item #: 1573
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 34.014:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 280 RPM and 550 mA (max) free-run, 90 oz-in (6.5 kg-cm) and 6.5 A stall.

Pololu item #: 2273
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 34.014:1 metal spur gearbox, and it has an integrated 48 CPR quadrature encoder on the motor shaft, which provides 1632.67 counts per revolution of the gearbox’s output shaft. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 280 RPM and 550 mA free-run, 90 oz-in (6.5 kg-cm) and 6.5 A stall.

Pololu item #: 1574
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 46.85:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 200 RPM and 550 mA (max) free-run, 115 oz-in (8.5 kg-cm) and 6.5 A stall.

Pololu item #: 2274
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 46.85:1 metal spur gearbox, and it has an integrated 48 CPR quadrature encoder on the motor shaft, which provides 2248.86 counts per revolution of the gearbox’s output shaft. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 200 RPM and 550 mA free-run, 115 oz-in (8.5 kg-cm) and 6.5 A stall.

Pololu item #: 1575
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 74.83:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 130 RPM and 550 mA (max) free-run, 150 oz-in (11 kg-cm) and 6.5 A stall.

Pololu item #: 2275
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 74.83:1 metal spur gearbox, and it has an integrated 48 CPR quadrature encoder on the motor shaft, which provides 3591.84 counts per revolution of the gearbox’s output shaft. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 130 RPM and 550 mA free-run, 150 oz-in (11 kg-cm) and 6.5 A stall.

Pololu item #: 1576
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 98.78:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 97 RPM and 550 mA (max) free-run, 210 oz-in (15 kg-cm) and 6.5 A stall.

Pololu item #: 2276
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 98.78:1 metal spur gearbox, and it has an integrated 48 CPR quadrature encoder on the motor shaft, which provides 4741.44 counts per revolution of the gearbox’s output shaft. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 97 RPM and 550 mA free-run, 210 oz-in (15 kg-cm) and 6.5 A stall.

Pololu item #: 1577
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 171.79:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 56 RPM and 550 mA (max) free-run, 350 oz-in (25 kg-cm) and 6.5 A stall.

Pololu item #: 2277
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 171.79:1 metal spur gearbox, and it has an integrated 48 CPR quadrature encoder on the motor shaft, which provides 8245.81 counts per revolution of the gearbox’s output shaft. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

Key specs at 6 V: 56 RPM and 550 mA free-run, 350 oz-in (25 kg-cm) and 6.5 A stall.

Pololu item #: 2269
Brand: Pololu
Status: Active and Preferred 
Temporarily out of stock. See product page to backorder.
Out of stock.
Quantity:

This is the motor and encoder portion of our high-power (HP), 6V 25D mm metal gearmotors with 48 CPR encoders. It does not include a gearbox, but the pinion gear on the output shaft works with all of our 25D mm gearmotor gearboxes, so this can be used as a replacement motor or encoder for those gearboxes.

Key specs at 6 V: 10,000 RPM and 275 mA free-run, 5 oz-in (0.35 kg-cm) and 6.5 A stall.

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