
POLOLU-3704 · Pololu

These small brushed DC gearmotors can deliver a lot of power for their size. This version has a 6V brushed DC motor with long-life carbon brushes combined with a 100:1 metal spur gearbox. The gearmotor is cylindrical with a diameter of 20 mm, and the D-shaped output shaft is 4 mm in diameter and extends 18 mm from the face plate of the gearbox. Key specifications: voltage no-load performance stall extrapolation 6 V 140 RPM, 150 mA 5.4 kg⋅cm (75 oz⋅in), 2.9 A (Pololu item #3704; also #3716 — soldered / kit / shaft variants)
| Part number | POLOLU-3704 |
|---|---|
| Manufacturer | Pololu |
| Category | Motors & Actuators › DC & Gear Motors |
| Pins | 2 |
| Voltage (max) | 6 V |
| Current | 2.9 A |
100:1 Metal Gearmotor 20Dx44L mm 6V pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | + | passive | Motor terminal M1 (+) |
| 2 | - | passive | Motor terminal M2 (-) |
Schematic symbol and footprint
Footprint: Motor leads, 2 wire pads (off-board motor) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
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