9.7:1 Metal Gearmotor 25Dx48L mm LP 12V with 48 CPR Encoder
- Order number: Pololu-3262
- Manufacturer product ID: 3262
This Product has been discontinued by manufacturer.
This gearmotor consists of a low-power, 12 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 12 V: 560 RPM and 100 mA free-run, 15 oz-in (1 kg-cm) and 1.1 A stall.
You can use the following selection boxes to choose from all of our 25D metal gearmotor versions:
Alternatives available with variations in these parameter(s): gear ratio motor type encoders? Select variant…
Compare all products in 12V Low-Power (LP) 25D mm Gearmotors.
Overview
These cylindrical brushed DC gearmotors are available in a wide range of gear ratios and with five different motors (two power levels of 6V motors and three power levels of 12V 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). All versions are also available with an integrated 48 CPR quadrature encoder on the motor shaft.
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 #3262
Exact gear ratio: 22×22×2412×10×10=9.68:122×22×2412×10×10=9.68:1
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 (223k pdf).
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| Dimensions of the Pololu 25D mm metal gearmotors. Units are mm over [inches]. |
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Specifications:
Dimensions
| Size: | 25D x 60L mm |
|---|---|
| Weight: | 95 g |
| Shaft diameter: | 4 mm |
General specifications
| Gear ratio: | 9.68:1 |
|---|---|
| No-load speed @ 12V: | 560 rpm |
| No-load current @ 12V: | 100 mA |
| Stall current @ 12V: | 1100 mA |
| Stall torque @ 12V: | 15 oz·in |
| No-load speed @ 6V: | 280 rpm1 |
| Stall current @ 6V: | 550 mA1 |
| Stall torque @ 6V: | 7 oz·in1 |
| Lead length: | 8 in2 |
| Motor type: | 1.1A stall @ 12V (LP 12V) |
| Encoders?: | Y |
Notes:
1. This motor will run at 6 V but is intended for operation at 12 V.
2. May vary by a few inches.