Sale! 172:1 Metal Gearmotor 25Dx56L mm HP 6V View larger

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172:1 Metal Gearmotor 25Dx56L mm HP 6V

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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. This gearmotor is also available with an integrated encoder.

Key specifications:

voltage no-load performance stall extrapolation
6V 56 RPM, 550 mA 25 kg⋅cm (350 oz⋅in), 6.5 A


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133,99 lei
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The price includes the costs for collection, treatment and ellimination of WEEE

-10,00 lei

143,99 lei tax incl.

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More info

Overview

These cylindrical brushed DC gearmotors are available in a wide range of gear ratios and with five different motors (two power levels of 6 V motors and three power levels of 12 V motors). The gearmotors all have the same 25 mm diameter case and 4 mm diameter gearbox output shaft, so it is generally easy to swap one version for another if your design requirements change (though the length of the gearbox tends to increase with the gear ratio). Each version is also optionally available with an integrated 48 CPR quadrature encoder.

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 15 kg-cm (200 oz-in); we strongly advise keeping applied loads well under this limit. Stalls can also result in rapid (potentially on the order of a second) 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.


In general, these kinds of motors can run at voltages above and below their nominal voltages (they can begin rotating at voltages as low as 1 V); lower voltages might not be practical, and higher voltages could start negatively affecting the life of the motor.


Details


Dimensions

The diagram below shows the dimensions of the 25D mm line of gearmotors (units are mm over [inches]). This diagram is also available as a downloadable PDF (171k pdf).

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Dimensions of the Pololu 25D mm metal gearmotors without encoders. Units are mm over [inches].

Warning: Do not screw too far into the mounting holes as the screws can hit the gears. We recommend screwing no further than 6 mm (0.24") into the screw hole.


Selecting the right gearmotor

We offer a wide selection of metal gearmotors that offer different combinations of speed and torque.

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Specifications

Dimensions

Size: 25D x 56L mm1
Weight: 94 g
Shaft diameter: 4 mm


General specifications

Gear ratio: 171.79:1
No-load speed @ 6V: 56 rpm
No-load current @ 6V: 550 mA2
Stall current @ 6V: 6500 mA
Stall torque @ 6V: 350 oz·in3
Motor type: 6.5A stall @ 6V (HP 6V)
Encoders?: N


Notes:

1 Length measurement is from gearbox face plate to back of motor (it does not include the output shaft or motor terminals). See dimension diagram for details.
2 Maximum.
3 This is a theoretical value; stalling the gearbox output shaft is likely to damage the gearbox.


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172:1 Metal Gearmotor 25Dx56L mm HP 6V

172:1 Metal Gearmotor 25Dx56L mm HP 6V

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. This gearmotor is also available with an integrated encoder.

Key specifications:

voltage no-load performance stall extrapolation
6V 56 RPM, 550 mA 25 kg⋅cm (350 oz⋅in), 6.5 A


See Description for more details about the product.

Don't delay, buy today. Add to cart now!

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